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Check out Sinatra Framework developers with the skills you need for your next job.
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  • $45 hourly
    • 4.9/5
    • (23 jobs)
    Hey! If you are looking for a skilled Full Stack developer, I'm a gifted, responsible, and reliable programmer who is eager to learn and to produce good and robust code. I always try to provide high-quality work as fast as possible. ๐Ÿ”ฅ Server Stack: ๐Ÿ’กLanguages: Ruby/JS(Typescript) ๐Ÿ’กFrameworks: Ruby on Rails, Sinatra, Nodejs-Express.js ๐Ÿ’กStorage: PostgreSQL, NoSQL, MySQL, Redis, MongoDb ๐Ÿ’กTesting: TDD/BDD/DDD -- RSpec, Minitest, Capybara, Watir, Cypress.js ๐Ÿ’กDeployment: Heroku, Linode, AWS EC2 & Elasticbeanstalk, Digital Ocean ๐Ÿ”ฅ Client Stack: ๐Ÿ’กJS Frameworks: React, Vue & Stimulus ๐Ÿ’กLanguages: HTML5, CSS3, JS (ES6/CoffeeScript) ๐Ÿ’กCSS Frameworks: Bootstrap, Materialize, Foundation, Semantic UI ๐Ÿ’กModule Bundlers: Webpack, RequireJs ๐Ÿ’กJS Libs: jQuery, CoffeeScript, etc ๐Ÿ”ฅOther: ๐Ÿ’กVersion control system: Git ๐Ÿ’กOS: Linux, Mac ๐Ÿ’กTask managers: Basecamp, Trello, Asana, Pivotal, JIRA, etc. ๐Ÿ’กChats/Calls: Discord, Stride, Slack, Zoom, or any others. ๐Ÿ”ฅ๐Ÿ”ฅInterests๐Ÿ”ฅ๐Ÿ”ฅ ๐Ÿ’กGoLang ๐Ÿ’กDocker ๐Ÿ’กK8s ๐Ÿ’กReactNative So what are you waiting for? Wanna chat/call? I'm just a message away. Hire a Pro Developer with solid architecture and coding skills that also understand the requirements for your businesses to be a success.
    Featured Skill Sinatra Framework
    Vuex
    Heroku
    Amazon Elastic Beanstalk
    Storybook
    Elasticsearch
    Redux
    TypeScript
    JavaScript
    Docker
    Amazon Web Services
    MySQL
    PostgreSQL
    Vue.js
    React
    Ruby on Rails
  • $30 hourly
    • 4.9/5
    • (26 jobs)
    Ruby on Rails developer who is enthusiastic about writing clean efficient, and accessible code in a functional framework. Committed to the total development lifecycle, the maintenance of code quality and bug-free applications is of the utmost importance.
    Featured Skill Sinatra Framework
    API
    Unit Testing
    Software Integration
    Third-Party Integration
    RSpec
    Ruby
    API Development
    Web Application
    MongoDB
    JavaScript
    Ruby on Rails
    HTML
    API Integration
    CSS
  • $40 hourly
    • 5.0/5
    • (6 jobs)
    I have been developing commercial Ruby on Rails projects since 2017. I have started my career in graphic design and publishing where I have developed an eye for design and clean solutions. That experience helps me immensely in web development, to better understand what my customers are looking for. When writing code I adhere to two very basic rules: I always use git and I always write tests. This means that at the end of the day my projects run like clockwork. I always listen to my clients before making decisions and value their time by being upfront about my skills and competencies. I am a part of the Polcode team, a Polish software development company established in 2006 with over 150 developers, designers, project managers, DevOps and QA specialists onboard. This means that besides my programming skills you always have access to a full-stack product design & development team. My technical expertise: - Backend Ruby on Rails and API development - Frontend development with Rails, Vue.js, Hotwire, Stimulus - Database design and programming using PostgreSQL / MySQL - Server management and configuration: AWS, S3, DigitalOcean, Heroku - Server monitoring (Appsignal, DataDog) - Integration with popular APIs (Google, Amazon, Facebook, Twitter, Shopify, Stripe etc. ) - TDD / BDD - Unit and functional testing (RSpec, Minitest, Capybara, VCR) - web design and UX (Axure, Balsamiq, Zeplin, UXPin) My technology stack: - Backend: Ruby on Rails, MySQL, PostgreSQL, AWS, Heroku - Frontend: Javascript, jQuery, HTML, HAML, CSS, SASS, Bootstrap 3-5, Vue.js, Tailwind, Hotwire More about Polcode Polcode provides customized software solutions for startups, SaaS companies, eCommerce stores, and enterprise clients worldwide. From building the product from scratch to extending the existing teams, we have expertise in a diverse set of open source technologies and platforms to bring innovation in an agile fashion. Our team excels in PHP, Symfony, Laravel, Magento, Go, React Native, React.js, Vue.js, Ruby on Rails and Angular. With over 150 people, Polcode has either empowered client teams or delivered end-to-end development projects for brands from fintech, manufacturing, consulting, eCommerce, marketing or eLearning industries and is recognized as Top Developer in Poland by Clutch. Looking forward to our cooperation! Klaudia, Polcode Dev Team
    Featured Skill Sinatra Framework
    HAML
    Ruby on Rails
    Ruby
    Bootstrap
    MySQL
    jQuery
    RSpec
    Vuex
    Vue.js
    Git
    Graphic Design
    UX & UI
    JavaScript
    HTML
    CSS
  • $20 hourly
    • 4.6/5
    • (81 jobs)
    4,700+ Hrs worked, $100K+ Total Earnings 7+ Years of Experience in Web & E-commerce Development, Shopify Apps Development, Shopify Store, Shopify Plus, Magento 2.X, WooCommerce Expert on UpWork. Over the past years, I have developed a wide range of websites, eCommerce stores design and development using Shopify & Shopify Plugin, WooCommerce, & Magento 2.x. Also, developed various Shopify (Public and Private). I do have very good expertise in HTML5/CSS3, Twitter Bootstrap, Javascript, jQuery, PHP, MySQL. Also have expertise in Custom eCommerce CMS, Blog design & development, Plugins, Theme Integration, Theme Development from PSD/HTML/CSS pages, Theme Customization, Plugin integration & Customization, SEO friendly website. Key Skills in Shopify: - Shopify Store Setup & Configuration - Responsive Shopify Theme Design (Customizable Templates, Polaris Based Designing) - Customized Shopify Store - Shopify App Development - Shopify Store SEO - Shopify Migration Services (from Magento and WooComerce and Prestashop) - API Integration, Module & Plug-in Management - Shopify Maintenance & Support Key Skills in Shopify APPs (Public & Private Apps): - Shopify APPs using ROR framework, Node, PHP or third-party app integration, - Shopify ADMIN APIs - GraphQL Admin API - Storefront API - Embedded apps - GDPR requirements - Sell through the Checkout API - Managing fulfillments with the Fulfillment and FulfillmentService resources - Updating inventory (Auto Updates ), Sync with ERPs (Xero, QuickBooks) via CSV - Localization - Supporting multi-language online stores Key Skills in Magento: - Magento 1 to Magento 2 migration - Magento Extension and Module development - Magento theming from PSDs/AdobeXD/Sketch/InDesign/Figma - Magento Speed enhancements - Magento - eBay integration - Magento - Quickbooks integration - Magento API projects - Magento Commerce enhancements - Inventory/Attribute/Category loads into Magento - Magento Store Maintenance - Magento AWS Server Setup Other Skills : - ECommerce: Shopify, Shopify Apps Development, Magento (19. & 2.x), Woocommerce, BigCommerce, PrestaShop - Expertise in Custom Extensions / Plugin Development & Customization - Design: XHTML, HTML, DHTML, CSS, JAVASCRIPT - JavaScript: AJAX, JQUERY, EXTJS, YUI, JSON/XML Data Attributes - Expertise: PHP, MySQL, MongoDB - Responsive Website Design - Twitter BootStrap, Initializer, HTML5 Boilerplate , HTML5 Grids - HTML5, CSS 3 , jQuery, jQuery UI, Widgets - Charts, Maps, Data Visualization, Grid, Accordion, Calendar, Dialog , Editor, Gallery, LightBox, Pager, Video Player, - Worked on a lot of jQuery Widgets - SEO knowledge and experience - Experience with HTML5/CSS3 - Worked with Google Maps, Facebook & Twitter integration, - Experience on JSON/REST API, XML Data Parsing - Solid understanding of web standards, semantics and cross-browser issues and solutions - Payment gateways also like P ayPal, Google Checkout, Braintree, Stripe, Authorize.net, CC Avenue etc - Work on optimizations
    Featured Skill Sinatra Framework
    API Development
    Shopify Apps
    WordPress e-Commerce
    Ecommerce Website Development
    OpenCart
    Shopify Plus
    API Integration
    Ruby on Rails
    Node.js
    Laravel
    Magento
    WordPress
    PrestaShop
    Shopify
    BigCommerce
  • $25 hourly
    • 5.0/5
    • (36 jobs)
    ๐Ÿ”ง Solution Architect & Full-Stack Engineer ๐Ÿ“… Over 10 Years of Proven Experience ๐Ÿค Collaborated with Fortune 100 Companies ๐Ÿข Specialist in Enterprise-Level Development โ˜๏ธ Microservices & Serverless Architectures Expert ๐Ÿ“ Master of Domain-Driven Design ๐Ÿ’ฌ Free Consultation (For Complex Projects Only) As a trusted advisor to Fortune 500 companies, I have spearheaded digital transformations and custom software projects that drove significant improvements in market share, operational efficiency, and overall business success. With a flawless record of on-time deliveries, I prioritize the final 20% of effort that delivers 80% of the impact. โœจ Technical Expertise: Full-Stack Development | Front-End & Back-End Development | Web Applications | Custom Software | Information Security | AI Solutions | CMS Development | Agile Practices | SaaS Platforms | Database Design & Management | API Integration | Microservices | Solution Architecture | Cloud Platforms (AWS, GCP) | DevOps | MERN/MEAN/LAMP Stacks โš™๏ธ Tech Stack Overview: Front-End: React.js, Vue.js, Next.js, Remix.js, JavaScript, CSS, HTML, Angular, Tailwind Back-End: Node.js, Python, Django, Laravel, PHP, TypeScript, Golang, Rust Databases: MySQL, MongoDB, PostgreSQL, BigchainDB Cloud Tools (AWS): Lambda, CloudFront, EC2, S3, Lightsail, Kinesis, Kubernetes, Docker, Nginx, Amplify API Integration: RESTful APIs Version Control: Git, GitHub, Bitbucket Project Management Tools: Jira, Asana, Monday.com, Trello ๐Ÿ’ก Rookies rely on skills. Professionals build systems and processes. โ˜• Letโ€™s build a partnership that delivers lasting value.
    Featured Skill Sinatra Framework
    Mobile App Development
    WordPress
    Docker
    Django
    Python
    TypeScript
    Node.js
    Next.js
    React
    JavaScript
    Front-End Development
    Back-End Development
    Web Development
    Full-Stack Development
    PHP
  • $20 hourly
    • 4.8/5
    • (87 jobs)
    Iโ€™m a seasoned Backend Developer with over 15 years of experience delivering robust, scalable, and secure web solutions. I specialize in PHP, Ruby, and Python โ€” building and maintaining complex backends, custom APIs, and CMS plugin functionality for businesses of all sizes. Whether you need a custom API developed, a third-party integration implemented, or a unique plugin built for WordPress or Joomla, I bring the technical skills and reliability to get it done right. ๐Ÿ”ง What I Do Best: โœ… Backend development in PHP, Ruby, Python โœ… Custom API development & integration (REST, GraphQL, SOAP) โœ… Plugin development for WordPress and Joomla โœ… Integrations with ChatGPT / OpenAI, Stripe, Twilio, CRMs, and more โœ… Secure, maintainable, and well-documented code โœ… Code optimization and bug fixing on legacy or modern stacks ๐Ÿค– AI & Automation Iโ€™m highly experienced in AI integration, especially with OpenAI/ChatGPT APIs, enabling automated chat, data enrichment, or AI-driven user experiences. I help clients turn manual workflows into intelligent, responsive systems. โ›“๏ธ Blockchain-Ready I also follow developments in blockchain and have started working on smart contract integrations and Web3 backends for decentralized applications. ๐Ÿ’ฌ Letโ€™s Connect: Iโ€™m detail-oriented, deadline-focused, and committed to clear communication. If you're looking for a dependable developer who thinks beyond code and delivers value, Iโ€™d love to discuss your project.
    Featured Skill Sinatra Framework
    Bitcoin
    Web Service
    Blockchain Architecture
    Solidity
    Cryptocurrency
    RESTful API
    Sinatra
    JavaScript
    Flask
    MySQL
    Ruby on Rails
    Python
    PHP
    HTML5
    Ruby
  • $35 hourly
    • 4.7/5
    • (39 jobs)
    I am proficient in full stack Ruby/Python/Node/Java web development (10 years hands-on experiences) and have built several challenging end-to-end software solutions using technical best practices. My strength lies in outstanding problem solving and analytical skills, as well as being a highly organized engineer. Thanks for your consideration.
    Featured Skill Sinatra Framework
    Ruby
    PostgreSQL
    Angular
    Vue.js
    API
    Ruby on Rails
    AWS Fargate
    HTML
    Node.js
    JavaScript
  • $35 hourly
    • 4.6/5
    • (48 jobs)
    ๐ŸŸข Available Now! ๐Ÿ† I'm a Top-Rated full-stack developer with 12 years of experience, proficient in a diverse array of technologies, frameworks and AI Workflow automation. ๐Ÿ”ฅ Also, I would like to join any RUST-involved project as junior developer and minimal rate of $10/hr (I need commercial Rust experience). Currently I'm specializing in Ruby on Rails/Ruby, JavaScript/TypeScript, Datastar/htmx/stimulus (hypermedia), React/Vue.js, Next.js/Nuxt.js, PostgreSQL, containers and n8n workflows. Proven track record in building and scaling complex web applications using best practices. Strong background in CI/CD, infrastructure automation, and cloud deployment. Available for full-time or contract roles. โš ๏ธ๏ธ Choose my specialization in menu and find out more ๐Ÿ’ผ Over 4000 work hours logged on Upwork and a long list of happy long-term clients. INDUSTRIES SERVED LONG-TERM - Highload IoT company (realtime microservices) - Healthcare company (medical cards storing and processing) - Virtual mobile operator (realtime microservices) - Logistics company - Car sell service (parsing car sale listings) - Music application backend - Tens of corporate websites (webdesign, implementation) using various stacks MY SKILLS Favorite Javascript/Typescript frameworks in order of preference: - Datastar (hypermedia) - React/Next.js - Vue.js/Nuxt.js - SvelteK/SvelteKit Favorite Javascript/Typescript libs: - Drizzle ORM - Polka - Express.js - Auth.js - TypeSpec Favorite ruby frameworks/gems in order of preference: - PORO :) - Rack, Sinatra, Hanami, Grape, Ruby-on-Rails + Hotwired - Warden, Pandit, Devise - DRY-* family, virtus, Light Service, etc - PG+query objects, Sequel, ROM, Arel Languages (in order of mastering level) - TypeScript, Ruby, PL/pgSQL, Rust, Python, Elm (underrated gem), *sh, Clojure, Haskell Data/events - PostgreSQL (favorite!), Elasticsearch, Redis, MySQL, MongoDB, ClickHouse (noob) - Nats.io - just perfect! API/Services integration major experience (to name a few) - OpenAI (ChatGPT), Twilio/Sendgrid, Stripe, Braintree, Pay.nl, Onomondo, tens of them, actually, I can integrate everything - AWS, Azure, GCP, DigitalOcean - Slack, NewRelic, Jenkins DevOps - Hashicorp stack (Nomad, Consul, Vault) - my choice if k8n is overkill for the task - Terraform (just love it!) - Ansible (advanced multi-env configurations) - Grafana, Loki, Prometheus - Docker, Ansible, Packer, Capistrano (but prefer ansistrano), etc. Clouds - Google Cloud Platform (almost everything but ML and BigData tools) - AWS - including autoscaling and load balancers of all types - Heroku - DigitalOcean - Render.com, Railway, Heroku, Vercel, Render.com, Neon, Fly.io - literally any INDUSTRIES SERVED LONG-TERM - High-load IoT company (realtime microservices) - Healthcare company (medical cards storing and processing) - Virtual mobile operator (realtime microservices) - Logistics company - Car sell service (parsing car sale listings) - Music application backend - Tens of corporate websites (web design, implementation) using various stacks โŒ› Available 7 days a week, up to 10 hours a day, at any time you need.
    Featured Skill Sinatra Framework
    Hosting Setup
    Linux System Administration
    Task Automation
    OpenAI API
    API Development
    API
    Back-End Development
    PostgreSQL
    MySQL
    Ruby
    JavaScript
    Ruby on Rails
    n8n
    TypeScript
    WordPress
  • $25 hourly
    • 5.0/5
    • (40 jobs)
    I'm a developer with a passion for solving tough problems and exploring new technologies. I thrive in unfamiliar territory - whether itโ€™s a complex system, a new framework, or a creative coding challenge. Backend experience: Node.js, Vite, Ruby on Rails, Django, Flask, and more. Past focus: Web scraping, browser automation, and Chrome/Firefox extensions. Current focus: Game development and Web3 - including smart contract integration, NFT systems, and secure APIs. I'm always open to new challenges, whether that means building something from scratch or jumping into an existing codebase. If you're working on something ambitious or unconventional, Iโ€™d love to hear about it.
    Featured Skill Sinatra Framework
    Scripting
    Django
    Google Sheets
    Google Chrome Extension
    Selenium
    React
    API
    Figma
    Node.js
    Game Development
    Ruby on Rails
    Python
    JavaScript
    Ruby
  • $55 hourly
    • 5.0/5
    • (59 jobs)
    Welcome to my profile! With over 6 years in DevOps, I've empowered a variety of companies, from agile startups to major enterprises, with cutting-edge IT solutions. My core expertise lies in Cloud IaaS & PaaS Solutions, Linux, and DevOps Engineering, complemented by my certification as a Kubernetes Administrator, highlighting my expertise in managing containerised applications. Skills & Expertise: - Cloud Mastery: Proficient in AWS Cloud Services, crafting scalable, efficient cloud infrastructures. Experienced with Google Cloud and Digital Ocean. - DevOps Expertise: Expert in modern DevOps practices, CI/CD processes, Jenkins pipelines, GitLab pipelines, GitHub Actions, and CircleCI. - Kubernetes Proficiency: Certified Kubernetes Administrator, skilled in orchestrating and managing containerized applications for cloud-native environments. - Programming & Development: Skilled in Python and Bash, extensive experience in Django and FastAPI frameworks for robust web applications. - Monitoring & Reliability: Expert in monitoring systems using Cloudwatch, Nagios, and ELK, ensuring high service availability and performance. - Compliance and Security: Experienced in implementing and managing SOP2 and GDPR compliance. Proficient in penetration testing for Linux servers and web applications. - Versatile IaaS/PaaS Experience: Extensive background in platforms like AWS, Google Cloud, and Digital Ocean, designing and managing efficient infrastructures. - Advanced Networking: Deep knowledge in network architecture and security protocols. - Database Engineering: Proficient in database management with MySQL, MS SQL, PostgreSQL, MongodB, and MongoAtlas. Professional Experience: - Client Support and Achievement: Successfully supported multiple clients to achieve 100K concurrent connections on their infrastructures, from dating apps to streaming platforms. - Sector Achievements: Notable achievements in the finance and real estate sectors, showcasing versatility and ability to deliver high-quality solutions in diverse industries. Professional Commitment: Dedicated to fostering innovation and adapting to the latest technological trends to ensure customer satisfaction. Focused on delivering cost-effective solutions tailored to the unique needs of small to mid-sized companies. Committed to solving challenges efficiently and guaranteeing satisfaction. Let's Connect: Eager to embark on transformative projects in DevOps, Cloud, Development, Security, and Compliance? Let's connect and explore how we can drive success together in the world of technology.
    Featured Skill Sinatra Framework
    Amazon ECS for Kubernetes
    Amazon S3
    SSL
    Cloud Architecture
    AWS CodeDeploy
    Infrastructure as Code
    AWS CloudFormation
    DevOps
    Amazon Web Services
    Application Release Automation
    Linux
    CI/CD
    Kubernetes
    Amazon ECS
    Infrastructure Management
  • $60 hourly
    • 5.0/5
    • (3 jobs)
    Expert in modern, clean, responsive, mobile-friendly website development with WordPress / Elementor, creating custom designs as well as modifying existing designs, creating custom functionality with Crocoblock/ACF, and writing custom code needed to achieve my client's goals. ๐Ÿ”ฅ Why clients work with me? - Because I'm fast, reliable, honest, knowledgeable, strategic. I help clients solve problems and help them generate more revenue. ๐Ÿš€ 1 HOUR FREE CONSULTATION to ensure a good fit between us (as I'm new on Upwork)๐Ÿš€ Over the last 8 years, and 3 years of being freelancer, I have developed a wide range of niche and corporate websites, including sites for startups, small businesses, and large businesses with revenue over โ‚ฌ11.7B. I love and prefer to work with clients on long-term basis but also love micro projects and am willing to offer lower rates to establish trust, as I'm new on Upwork. ๐ŸฅทNumbers that make me a web-ninja: Total projects: 55+ Years of freelance experience: 3+ Total revenue from Freelancing: โ‚ฌ280 K No. of clients worked with: 20+ No. of WordPress / Elementor projects: 40+ No. of SEO included in projects: 30+ No. of Web Strategy projects: 30+ No. of Long-term support clients: 10+ Biggest client: โ‚ฌ11,7B ARR revenue - Exmet Group. Common clients: 1-2M ARR revenue - MezCrafts Smallest client: โ‚ฌ120K ARR revenue - Autovoika Auto Repairs I'm expert in using following tools: Web Development = Wordpress, Elementor, CSS3, HTML5, Javascript, Web Design = Figma, FigJam, Miro SEO = RankMath, Mangools, Semrush, HTML Analytics = Google Analytics, Tag Manager, Search Console, HotJar, Plausible. Cookies: CookieBot, CookieYes Project Management = Notion, Asana, Jira Web Servers = Plesk, DigitalOcean, Apache, Nginx, AWS, + own my own hosting with 99% uptime. Formal education = IT Support Level 3 EQF, IT Systems Administrator Level 4 EQF (European Certified)
    Featured Skill Sinatra Framework
    Webflow
    Framer
    JavaScript
    Strategic Planning
    Strategy
    Claude
    ChatGPT
    Prompt Engineering
    Elementor
    Web Content Strategy
    WordPress
    Web Application Development
    Web Development Consultation
    Web Development
    WordPress Website Design
  • $35 hourly
    • 4.9/5
    • (20 jobs)
    ๐Ÿš€ AI & Fullstack Expert with 5+ Years of Proven Experience in Building Cutting-Edge Solutions๐Ÿš€ As a Fullstack Developer with a passion for innovation, Iโ€™ve honed my skills across web development, AI engineering, and advanced machine learning, delivering impactful solutions for various industries. My journey has led me to develop complex, scalable applications used by thousands of users worldwide, with a vision of expanding that number to millions, or even billions. My expertise spans the following domains: Fullstack Development: I bring years of experience in web and software development, from frontend design to backend architecture. With a strong foundation in Ruby on Rails, JavaScript, Python, and cutting-edge frameworks, I thrive in building both dynamic, user-friendly frontends and reliable, efficient backends. Key Technologies: Languages: Ruby, JavaScript, Python, AngularJS, Vue.js Frameworks: Ruby on Rails, Django Databases: PostgreSQL, MongoDB, SQLite, MySQL Frontend: React JS, Angular JS Testing: RSpec, Capybara Deployment: AWS, Google Cloud, Capistrano, Mina, Nginx, Puma, Unicorn I specialize in building Single Page Applications (SPAs) and ensuring optimal performance, scalability, and user experience for all types of web applications. I also believe in the power of Test-Driven Development (TDD) to guarantee that your software is as reliable and robust as possible. AI & Machine Learning Expertise: With over 5 years of experience in AI, Data Science, and Machine Learning, I specialize in building intelligent, automation-driven solutions. My expertise lies in Natural Language Processing (NLP), AI Model Development, and Generative AI using powerful tools like GPT-4, LangChain, and LLaMA 3. AI Technologies & Tools: Models: GPT-4, LLaMA 3, Mistral, Claude 3.5 Libraries: LangChain, FastAPI, OpenAI API Frameworks: Streamlit, Flask, React Data Tools: Power BI, Tableau, MATLAB, BeautifulSoup, Selenium Automation: API Integration, Python Automation AI Solutions I've Developed: Multi-Agent Chatbot Systems: Leveraging GPT-4, LangChain, and Streamlit to improve customer interactions and automate business processes. Document Management & Retrieval (RAG): Developed systems for seamless document management, boosting productivity using GPT-4 and LangChain. AI Assistants: Designed customized AI assistants to optimize business operations, improve decision-making, and boost performance. Why Choose Me? AI-Driven Innovation: I deliver advanced, research-backed AI solutions that drive business growth and efficiency. Proven Fullstack Experience: From frontend to backend, I develop scalable, high-performance applications with best-in-class technologies. Holistic Approach: Whether you're looking to optimize internal processes, automate workflows, or integrate AI into your operations, I provide end-to-end solutions tailored to your business needs. What I Offer: AI Model Development: Custom AI solutions to streamline operations and improve strategic decisions. Automation & Optimization: Leverage AI-driven automation to reduce costs and increase operational efficiency. Data Analytics & Predictive Modeling: Data analysis, cleansing, and actionable insights for informed business decisions. Letโ€™s Connect: Letโ€™s explore how my AI expertise and fullstack development skills can transform your business and accelerate your growth. Reach out to discuss how we can collaborate on creating innovative solutions that address your unique challenges and unlock new opportunities!
    Featured Skill Sinatra Framework
    Website Content
    Internet of Things Solutions Design
    React
    Ruby on Rails
    Artificial Intelligence
    Arduino
    Machine Learning
    Computer Vision
    Chatbot
    Deep Learning
    PyTorch
    TensorFlow
    Python
  • $70 hourly
    • 5.0/5
    • (29 jobs)
    It's great that you're checking my profile. I haven't freelanced for some time, but I'm considering going back to freelancing again. I always enjoyed working for startups and scale ups - it's easier for me to operate in environment where I don't have to deal with multiple layers of management and where decisions have to be made by many peers. I have experience as a team lead and product lead (I'm also building my small software business on a side), but mainly enjoy working as a fullstack developer. My main stack is Ruby on Rails, but I got my hands dirty with other languages and frameworks. Besides regular feature development. There are other tasks I can help you with: - Maintenance work - Email delivery issues - Optimizing SEO - Rails updates - Framework migrations (react to hotwire) - Performance optimizations - Testsuits speedups I worked for startups, that want to move fast and ready to break things or those that go slow, but steady. I'm happy to adjust to your needs. If you need any referrals for jobs done outside upwork, I can connect you with those as well. I contribute to OSS, for my own projects and for clients, please make sure to checkout my github profile to see my latest contributions. Have a great day!
    Featured Skill Sinatra Framework
    Integration Testing
    RSpec
    Continuous Integration
    Heroku
    Unit Testing
    Automated Testing
    Performance Optimization
    DevOps
    PostgreSQL
    Redis
    SQL
    Ruby
    Ruby on Rails
  • $25 hourly
    • 5.0/5
    • (18 jobs)
    ๐Ÿ“Œ Get Your Projects with a Senior Full-Stack and Flutter Developer! Hi, I'm Samuel Kifle! Senior Flutter Mobile App and Full-Stack Developer with more than 4 years of industry experience building innovative mobile apps and backend services that delivered real results for a wide range of businesses. I solve complex app challenges and craft user-friendly solutions that meet your specific needs. ๐— ๐—ฌ ๐—˜๐—ซ๐—ฃ๐—˜๐—ฅ๐—ง๐—œ๐—ฆ๐—˜: ๐Ÿ› ๏ธ Senior Full Stack Developer ๐Ÿ“ฑ Flutter Developer ๐Ÿ“ฑ React Native Developer ๐ŸŒŠ Flutterflow Developer ๐Ÿ“ฒ Cross-Platform Mobile Apps ๐Ÿงฉ Custom Flutter Widgets ๐Ÿ Python Django Developer ๐Ÿš€ Laravel Developer ๐Ÿ“ฑ Mobile App Development ๐Ÿ”„ API Integration ๐ŸŒ REST API Development ๐Ÿ’ณ Payment Gateway Integration ๐Ÿ—ƒ๏ธ Database Management ๐Ÿ–ฅ๏ธ Responsive Web Design ๐—™๐—ฅ๐—ข๐—ก๐—ง-๐—˜๐—ก๐—— ๐——๐—˜๐—ฉ๐—˜๐—Ÿ๐—ข๐—ฃ๐— ๐—˜๐—ก๐—ง: โœ… HTML5, CSS3, JavaScript, Tailwind, Bootstrap โœ… React JS โœ… WordPress โœ… Responsive Design โœ… Flutter Web ๐—•๐—”๐—–๐—ž-๐—˜๐—ก๐—— ๐——๐—˜๐—ฉ๐—˜๐—Ÿ๐—ข๐—ฃ๐— ๐—˜๐—ก๐—ง: โœ… Node.js(Express.js, Nest.js) โœ… Python Django, Flask, FastAPI โœ… Firebase Firestore โœ… Laravel PHP โœ… REST APIs Development โœ… Payment integration ๐——๐—”๐—ง๐—”๐—•๐—”๐—ฆ๐—˜: โœ… MySQL โœ… PostgreSQL โœ… MongoDB โœ… MicroSoft SQL Server ๐——๐—˜๐—ฉ๐—ข๐—ฃ๐—ฆ/๐——๐—˜๐—ฃ๐—Ÿ๐—ข๐—ฌ๐— ๐—˜๐—ก๐—ง: โœ… Hostinger, SiteGround, Orangehost, Plex โœ… Docker โœ… Git, GitHub, GitLab โœ… AWS, GCP, Vercel, Render, PythonAnywhere โœ… NGINX โœ… cPanel What I can contribute to the success of your project: ๐Ÿ‘๏ธ Attention to Detail: Ensuring the highest quality in software products. ๐Ÿง  Strong Problem-Solving Skills: Tackling complex challenges with ease. โญ High-Quality Code: Proficient in writing clean, testable, and maintainable code. ๐Ÿ—ฃ๏ธ Effective Communication: Clear and efficient communication for seamless collaboration. ๐Ÿค Team Collaboration: Proven track record of working well with team members. ๐Ÿ“‹ Customer Focus: Understanding and meeting client requirements comprehensively. โšก Agile Adaptability: Quick adaptation to new project demands and emerging technologies. ๐Ÿš€ Cutting-Edge Techniques: Utilizing the latest architecture, tools, and methodologies to enhance user engagement. Ready to turn your ambitious vision into a reality? Let's connect and I'll help you make it happen!
    Featured Skill Sinatra Framework
    NestJS
    Angular 4
    Flutter
    Next.js
    RESTful API
    Git
    Tailwind CSS
    MySQL
    PostgreSQL
    MongoDB
    JavaScript
    Node.js
    Python
    ExpressJS
    React
  • $25 hourly
    • 5.0/5
    • (91 jobs)
    I am an experienced Ruby on Rails developer with over 7 years of expertise in the field. I am passionate about taking on new and challenging projects where I can apply my skills and gain valuable experience. I value honest and transparent communication. I always like to understand your needs and give advice to produce the best results possible. My Skills & Expertise: - Ruby on Rails - Ruby on Jets - Shopify App development(Public and Custom) - Shopify store migration - Shopify Scripts for the Shopify Plus store - Databases experience with PostgreSQL, MySQL, MongoDB - Third-party API integrations - TDD experience with RSpec - Experience in Github, Heroku, Bitbucket, Amazon AWS, Amazon S3, Digital Ocean
    Featured Skill Sinatra Framework
    PostgreSQL
    RSpec
    HTML
    Web Application
    JavaScript
    DigitalOcean
    Ruby on Rails
    App Development
    jQuery
    Ruby
    Shopify Theme
    Amazon EC2
    Shopify Apps
    Shopify
    Web Design
  • $10 hourly
    • 4.9/5
    • (14 jobs)
    I Will Transform Your LinkedIn into a Lead-Generating Machine! Hello! Iโ€™m Hira Nisar, a Top Personal Branding Strategist and LinkedIn Expert with over 3 years of experience helping 100+ businesses and entrepreneurs unlock the true potential of their LinkedIn presence. My approach isnโ€™t just about boosting your profile; itโ€™s about building a strong, lasting personal brand that attracts your ideal clients and grows your network exponentially. โœ” What I Do: I specialize in LinkedIn Personal Branding, helping business owners, coaches, and B2B/B2C entrepreneurs transform their LinkedIn profiles into powerful marketing tools. Iโ€™ll work with you to create a custom LinkedIn strategy that reflects your expertise and attracts the right opportunities. โœ” How I Can Help You: โ–ถ LinkedIn Profile Optimization: Craft compelling headlines, summaries, and sections that showcase your expertise with SEO strategies that maximize visibility. โ–ถ Content Strategy & Creation: Develop a tailored content plan with targeted themes, engaging posts, and visual elements like carousels and videos to boost engagement. โ–ถ Ghostwriting: High-quality, engaging LinkedIn posts that align with your personal voice and professional goals. โ–ถ Audience Engagement & Growth: Connect with the right people, engage meaningfully, and grow your network organically โ€” increasing your connections by up to 30% in just 30 days. โ–ถ Account Management: Handle your LinkedIn presence so you can focus on your business. I offer 3-day, 15-day, and 30-day management packages. โœ” Why Work With Me? I understand the intricacies of LinkedIn and the importance of consistent, strategic branding. My approach is designed to be customized to your goals, whether you aim to build authority, generate leads, or increase visibility. Working with me, youโ€™re not just hiring a LinkedIn expert โ€” youโ€™re gaining a partner whoโ€™s as invested in your success as you are. โœ” Results You Can Expect: โ–ถ Increased Visibility: Iโ€™ll optimize your profile and content for maximum reach and engagement, helping you achieve up to 50% more views on your posts and profile. โ–ถ Lead Generation: Attract your ideal clients through a personalized LinkedIn strategy, generating up to 20% more inquiries within 30 days. โ–ถ Networking Success: Build meaningful connections that translate into business opportunities, with up to 40% growth in your network within a month. โœ” Let's Work Together: My goal is to make LinkedIn work for you, consistently, effectively, and efficiently. If you're ready to elevate your LinkedIn presence, attract your ideal clients, and turn connections into business, letโ€™s start today! ๐Ÿ”น Contact me to discuss your project. Letโ€™s transform your LinkedIn profile into a lead-generating asset!โฃ
    Featured Skill Sinatra Framework
    Resume Design
    Resume Development
    Resume Writing
    LinkedIn Marketing
    LinkedIn Profile Optimization
    LinkedIn Development
    Company LinkedIn Profile
    LinkedIn Lead Generation
    LinkedIn Profile Headline & Summary
    LinkedIn Profile Creation
    LinkedIn Profile
    Content Writing
    SEO Writing
    Blog Writing
    Job Description Writing
  • $40 hourly
    • 5.0/5
    • (14 jobs)
    Senior Software Engineer. I have 7 years of proven production experience in building fast and reliable Web Sites and Web Services, highload, monolith and multi-service architectures. Reach me out if you need a: - backend Ruby or Rails developer - full-stack developer (VueJS, React) - backend application performance optimisations or audit (DB queries, full-text search) - expert to create or audit architecture of a Ruby on Rails application - interviewer to interview someone for a backend position, including Senior engineer roles
    Featured Skill Sinatra Framework
    MySQL Programming
    Web Crawling
    Web Development
    MongoDB
    Redis
    Database Design
    Ruby on Rails
    JavaScript
  • $45 hourly
    • 4.9/5
    • (49 jobs)
    Cloud Architect and Devops specialist - cloud providers (Google Cloud, AWS, Hetzner, Digital Ocean, OVH, Scaleway, etc.) - setup, maintenance, security and scaling of containerization tecnhologies (Kubernetes, Rancher k3s, Red Hat Openshift, Docker, Docker Swarm) - IT automation and infrastructure-as-a-code (Ansible, Terraform) - CI/CD pipelines (Github Actions, GitLab CI) and containers deployment (docker-compose, Helm Charts, etc.) - cloud-native foundation technologies (ELK, EFK, fluentbit, Promtail, Loki, Prometheus, Grafana, Longhorn, Rook Ceph, etc.) - cloud-enable, cloud migrations Enterprise System Infrastructure Engineer - delivery, configuration and maintenance of RHEL, SLES, CentOS, Ubuntu and Debian OS (bare-metal and hypervisor guests) - troubleshooting and problem solving of OS and middlewares issues - managing of complex OS configurations: DM Multipath, clustering, network bonding, ecc. - storage and networking knowledges - OS hardening, tuning and patching - shell scripting - virtualization (XCP-NG, Citrix XenServer, VMware vSphere) - email deliverability (SPF, DKIM, DMARC, etc.) and collaboration products (Zimbra Collaboration Suite) - development (Python, HTML5, RDBMS) Senior IT Consultant - troubleshooting and problem solving of Incidents and Problems - workgroup coordination for Event management activities - managing relationships with different stakeholders - support workgroups during decision making - research of IT solutions and products that fits business needs and modernization - AS-IS assessments and TO-BE proposals based on customers requirements - creation of HOW-TOs and technical documentations
    Featured Skill Sinatra Framework
    Ansible
    Docker
    Cloud Architecture
    Terraform
    Red Hat Enterprise Linux
    DevOps
    GitLab
    Kubernetes
    Zimbra Administration
    Citrix Hypervisor
    System Administration
    Google Cloud Platform
    Ubuntu
    Amazon Web Services
    CentOS
  • $25 hourly
    • 5.0/5
    • (3 jobs)
    Whether youโ€™re in need of a solo developer, a full team, or just some extra support for your in-house team, Iโ€™m here to bring my expertise to the table. With 8 years of experience in the tech industry, I've worn many hats, including AI Specialist, ChatBot Developer, Technical Lead, and Solution Architect. ๐€๐ˆ ๐’๐ฉ๐ž๐œ๐ข๐š๐ฅ๐ข๐ฌ๐ญ ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: As your AI expert, I can assist you with the following: ChatBot Development ChatGPT-4 Integration Generative AI Solutions Prompt Engineering Content Automation Strategies Performance Optimization Data Security Measures Iโ€™ll help you address key questions, such as: Determining the best approach for integrating AI solutions into your existing systems Understanding the role and impact of AI technologies like Generative AI and ChatGPT-4 Crafting an effective AI strategy tailored to your business needs Balancing innovation with data security and compliance ๐๐ซ๐จ๐ฃ๐ž๐œ๐ญ ๐Œ๐š๐ง๐š๐ ๐ž๐ฆ๐ž๐ง๐ญ ๐’๐ค๐ข๐ฅ๐ฅ๐ฌ: Scope Management: Defining clear AI project objectives, deliverables, and timelines. Resource Allocation: Ensuring optimal use of AI and tech resources for maximum impact. Risk Management: Mitigating potential risks in AI deployment to ensure smooth delivery. Stakeholder Management: Building strong relationships with clients, teams, and AI vendors. Quality Assurance: Implementing rigorous QA processes to deliver high-quality AI solutions. ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง ๐€๐ซ๐œ๐ก๐ข๐ญ๐ž๐œ๐ญ ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: Designing and implementing scalable, secure AI solutions. Translating business requirements into technical AI blueprints. Recommending appropriate AI technologies based on project needs (e.g., NLP models, ML frameworks). Seamlessly integrating AI systems and APIs into existing infrastructures. Utilizing architecture modeling tools to document and visualize AI solutions. ๐€๐ ๐ข๐ฅ๐ž | ๐’๐œ๐ซ๐ฎ๐ฆ | ๐’๐ช๐ฎ๐š๐๐ฌ: I use Agile methodologies, including Scrum and Squads, to drive efficient AI project execution, foster collaboration, and adapt to evolving requirements. Embracing Agile principles enables rapid AI delivery, continuous improvement, and enhanced stakeholder satisfaction. ๐“๐จ๐จ๐ฅ๐ฌ ๐š๐ง๐ ๐“๐ž๐œ๐ก๐ง๐จ๐ฅ๐จ๐ ๐ข๐ž๐ฌ: Python | Django | Flask | ChatGPT-4 | Jira | Trello | GitHub | Slack | Confluence | Agile | Scrum ๐“๐ž๐œ๐ก๐ง๐จ๐ฅ๐จ๐ ๐ฒ ๐‹๐š๐ง๐๐ฌ๐œ๐š๐ฉ๐ž: My technical expertise covers a wide array of technologies, including: Python | AI/ML | ChatGPT-4 | Generative AI | SaaS | Web Development | Fullstack | JavaScript | RESTful APIs | Cloud Platforms | ROR | Elixir ๐ˆ๐ง๐๐ฎ๐ฌ๐ญ๐ซ๐ฒ ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: I bring a wealth of experience in AI-driven solutions across various industries, including Fintech | Healthcare | Real Estate | Ecommerce | Media | Automotive | EdTech | Esports. ๐๐ซ๐ž-๐ฌ๐š๐ฅ๐ž๐ฌ ๐„๐ฑ๐œ๐ž๐ฅ๐ฅ๐ž๐ง๐œ๐ž: I excel in Pre-sales, offering expertise in AI Demos, Presentations, Proof of Concept (PoC) development, and scaling MVPs to enterprise-level AI products.
    Featured Skill Sinatra Framework
    Google Cloud Platform
    Python
    Phoenix Web Framework
    Elixir
    Ruby on Rails
    Elasticsearch
    Amazon MWS
    Ruby
    Watir
    HTML5
    CoffeeScript
    React
    CSS
    Git
    Google Chrome Extension
  • $25 hourly
    • 5.0/5
    • (42 jobs)
    Struggling to build scalable, AI-powered web apps that truly stand out? My name is Farzam, a ๐‚๐ž๐ซ๐ญ๐ข๐Ÿ๐ข๐ž๐ ๐‘๐ฎ๐›๐ฒ ๐จ๐ง ๐‘๐š๐ข๐ฅ๐ฌ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ž๐ซ with ๐Ÿ—+ ๐ฒ๐ž๐š๐ซ๐ฌ of experience delivering high-performance, intelligent solutions that boost user engagement and efficiency. Let's innovate together and elevate your digital presence. ๐Ÿš€ ๐‡๐Ž๐– ๐ˆ ๐‚๐€๐ ๐‡๐„๐‹๐ ๐˜๐Ž๐” ๐‚๐ฎ๐ฌ๐ญ๐จ๐ฆ ๐‘๐ฎ๐›๐ฒ ๐จ๐ง ๐‘๐š๐ข๐ฅ๐ฌ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ Tailored, high-performance web applications built to scale and meet your unique business needs. ๐€๐ˆ ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง & ๐ˆ๐ง๐ญ๐ž๐ฅ๐ฅ๐ข๐ ๐ž๐ง๐ญ ๐€๐ฎ๐ญ๐จ๐ฆ๐š๐ญ๐ข๐จ๐ง Enhance your apps with AI-driven features like predictive analytics and smart automation. ๐…๐ฎ๐ฅ๐ฅ-๐’๐ญ๐š๐œ๐ค ๐–๐ž๐› ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ (๐‘๐ž๐š๐œ๐ญ & ๐๐ž๐ฑ๐ญ.๐ฃ๐ฌ) Modern, responsive, and user-centric frontend solutions seamlessly integrated with robust backends. ๐€๐๐ˆ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ & ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง Secure and efficient APIs to connect your services and third-party platforms. ๐‚๐ฅ๐จ๐ฎ๐ ๐ƒ๐ž๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐ž๐ง๐ญ & ๐ƒ๐ž๐ฏ๐Ž๐ฉ๐ฌ Reliable CI/CD pipelines and cloud hosting on AWS, GCP, or Heroku for smooth, scalable deployments. ============================ ๐ŸŒŸ 5-STAR REVIEWS ๐ŸŒŸ โI hired Farzam to help build out our Ruby On Rails (ROR) stack for our product. Farzam has done a tremendous job. He's reliable, a good communicator and an excellent developer. He goes the extra mile and actively thinks along while creating new functionalities. He's an asset to any company developing high-quality software and would highly recommend him. โž โ€“ Thijs S. | Head of Product at WeGuide โFarzam was a fantastic asset to us for Rails development. He really knows his stuff and is an ambitious worker. I would definitely choose to hire him again if given the opportunity.โž โ€“ Jonathon M. | Senior Software Engineer โFarzam became a valuable member of our team where he showed off his ability to deliver high quality and efficient code. I highly recommend him!โž โ€“ Alex K. | Senior Software Engineer | Full-stack Web Development ============================ ๐Ÿ† Certified Ruby on Rails Developer ๐Ÿš€ Senior Full Stack Engineer with 9+ years experience Explore my portfolio below to see successful projects and AI-powered web apps. ============================ ๐Ÿš€ ๐—Ÿ๐—˜๐—ง'๐—ฆ ๐—•๐—จ๐—œ๐—Ÿ๐—— ๐—ฌ๐—ข๐—จ๐—ฅ ๐—™๐—จ๐—ง๐—จ๐—ฅ๐—˜ ๐—ง๐—ข๐—š๐—˜๐—ง๐—›๐—˜๐—ฅ Ready to elevate your web applications with AI-powered, high-performance solutions? ๐— ๐—ฒ๐˜€๐˜€๐—ฎ๐—ด๐—ฒ ๐—บ๐—ฒ ๐—ผ๐—ป ๐—จ๐—ฝ๐˜„๐—ผ๐—ฟ๐—ธ ๐˜๐—ผ๐—ฑ๐—ฎ๐˜† for a free consultation and tailored strategy. I typically respond within 6 hours and am eager to start your project. ============================ ๐Ÿ› ๏ธ ๐“๐Ž๐Ž๐‹๐’ & ๐“๐„๐‚๐‡๐๐Ž๐‹๐Ž๐†๐˜ ๐‹๐š๐ง๐ ๐ฎ๐š๐ ๐ž๐ฌ & ๐…๐ซ๐š๐ฆ๐ž๐ฐ๐จ๐ซ๐ค๐ฌ โ€ข Ruby โ€ข Ruby on Rails โ€ข JavaScript โ€ข TypeScript โ€ข React.js โ€ข Vue.js โ€ข Next.js ๐€๐ˆ & ๐€๐ฎ๐ญ๐จ๐ฆ๐š๐ญ๐ข๐จ๐ง โ€ข AI Integration โ€ข AI App Development โ€ข AI Agent Development โ€ข Predictive Analytics ๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž๐ฌ โ€ข PostgreSQL โ€ข MySQL ๐“๐ž๐ฌ๐ญ๐ข๐ง๐  & ๐๐ฎ๐š๐ฅ๐ข๐ญ๐ฒ ๐€๐ฌ๐ฌ๐ฎ๐ซ๐š๐ง๐œ๐ž โ€ข RSpec โ€ข Factory โ€ข Minitest โ€ข Selenium โ€ข Capybara ๐ƒ๐ž๐ฏ๐Ž๐ฉ๐ฌ & ๐‚๐ฅ๐จ๐ฎ๐ โ€ข Docker โ€ข Kubernetes โ€ข CI/CD โ€ข AWS โ€ข Heroku โ€ข GCP ๐”๐ˆ & ๐’๐ญ๐ฒ๐ฅ๐ข๐ง๐  โ€ข Tailwind CSS โ€ข Bootstrap Ruby on Rails, Full Stack Development, AI Integration, React.js, Web Development, TypeScript, JavaScript, API Development, PostgreSQL, Tailwind CSS
    Featured Skill Sinatra Framework
    Bootstrap
    Tailwind UI
    PostgreSQL
    Node.js
    Shopify
    JavaScript
    TypeScript
    AI Agent Development
    AI App Development
    API Development
    Web Development
    Next.js
    React
    Ruby on Rails
    Ruby
  • $34 hourly
    • 4.9/5
    • (27 jobs)
    My main focus is Google Chrome/Edge/Firefox/Safari Browser Extension and Plugin development and store submission with implementing ChatGPT. From scratch or editing what someone else created. Manifest version upgrades, DOM manipulations. More than 10 years of extensive experience as a Javascript software developer. Excellent knowledge of designing and developing Javascript-based systems. Hands-on experience in various JavaScript frameworks, including React, Node, and Vue. More than 15 completed projects for different industries. Developed number of challenging applications and services, including an online marketplace, web services (SaaS), content management systems (CMS), customer relationship management (CRM), intranet solutions and web projects of various complexities. Experience with automated code generation, creation of UI/UX, and writing of requirements specifications. Great focus on systemsโ€™ reliability, performance, security, and project success. 22000+ hours here on Upwork!
    Featured Skill Sinatra Framework
    Docker
    Amazon Plugin
    Document Object Model
    MERN Stack
    Socket Programming
    MySQL Programming
    Chromium
    Redux
    PostgreSQL
    JavaScript
    React
    Vue.js
    Firefox Plugin Development
    Browser Extension
    Google Chrome Extension
  • $35 hourly
    • 4.9/5
    • (39 jobs)
    As a Full Stack Developer with over 8 years of experience, I have successfully delivered 50+ high-performance .NET web applications ๐Ÿš€, leveraging .NET technologies such as C#, ASP.NET MVC, ASP.NET Core, and ASP.NET Web API. My .NET Developer backend expertise has helped build .NET systems that support millions of users and handle over 2 million daily transactions. Iโ€™ve optimized Microsoft SQL Server databases with .NET, increasing query performance by over 40% and managing complex .NET data workflows that have supported applications with more than 1 million active users. On the front end, I have worked extensively with JavaScript, React, Angular, and Node.js for over 6 years, delivering 25+ enterprise-grade .NET applications that have increased user engagement by up to 30% ๐Ÿ“ˆ. My expertise in HTML5, CSS3, jQuery, and NET-based front-end integrations has allowed me to develop 50+ responsive .NET web pages ๐Ÿ“ฑ that load in under 2 seconds and provide seamless experiences across all devices. I have also successfully optimized .NET front-end code, reducing page load times by 35% across several key projects. As a Full Stack .NET Developer, I ensure smooth integration between front-end technologies and .NET-based back-end services, always delivering optimized and scalable solutions. As a .NET Developer, I have delivered 10+ .NET projects that have scaled to support over 1 million users each. Iโ€™ve integrated .NET CI/CD pipelines into over 20 .NET projects ๐Ÿš€, which decreased deployment time by 50%, ensuring faster delivery and more efficient development cycles. I have also reduced software development lifecycles by up to 40% by automating testing and deployment procedures in .NET, resulting in quicker and more reliable releases. As a seasoned .NET Developer, my .NET knowledge has played a key role in these efficiencies, ensuring that each stage of .NET development is seamless and robust. With 7+ years of experience using Git for version control, Iโ€™ve managed and contributed to 100+ .NET repositories, collaborating across teams of up to 20 developers on large-scale, multi-faceted .NET projects. My experience as a .NET Developer has helped streamline .NET development workflows, contributing to a 30% increase in overall team productivity ๐Ÿ“Š. I am also proficient in React, Angular, Flutter, HTML5, Laravel, Java, having created 40+ dynamic, responsive user interfaces that deliver outstanding user experiences. In addition, I have extensive experience using jQuery and Bootstrap, SQL, and JavaScript, delivering 30+ mobile-friendly, responsive designs. My deep understanding of .NET technologies allows me to collaborate effectively with other team members and deliver scalable .NET solutions. If you're looking for a dedicated, results-driven .NET Developer who consistently delivers robust, scalable .NET solutions on time, Iโ€™m ready to bring your next .NET project to life and exceed your expectations ๐ŸŽฏ.
    Featured Skill Sinatra Framework
    Bootstrap
    Angular
    jQuery
    Node.js
    HTML
    React
    .NET Framework
    ASP.NET Web API
    CSS
    JavaScript
    Microsoft SQL Server
    SQL
    ASP.NET Core
    ASP.NET MVC
    C#
  • $45 hourly
    • 4.9/5
    • (75 jobs)
    ๐Ÿฆพ AI-powered solutions. OpenAI integrations. Machine learning capabilities. ๐Ÿงฉ Requirements call is a must. ๐Ÿ›‘ I will not participate in small fixes projects โ€“ sorry, guys. Iโ€™m an AI App Developer and Full Stack AI SaaS Developer from Ukraine with 13+ years of experience in AI-driven Python and Django Development. From building intelligent chatbot platforms to scalable AI SaaS systems, I deliver end-to-end solutions that integrate machine learning, smart automation, and powerful backend logic. Whether you need a custom AI Web Application, an iOS Developer AI integration, or a complete AI SaaS platform, Iโ€™ve got you covered. I often incorporate tools like n8n and make.com into intelligent workflows to enhance automation efficiencyโ€”perfect for AI voice agent flows, AI phone features, or building a smart Voice receptionist. ๐Ÿ’ผ Why Work With Me? I donโ€™t just write codeโ€”I create AI-driven applications that solve real business problems. As a Python Developer with strong ML skills, I bring a product-focused approach backed by technical depth. This includes using n8n to orchestrate multi-step processes and make.com for rapid integration with external services. ๐Ÿ’ป Development Expertise AI & Machine Learning: NLP, predictive models, recommendation engines, intelligent automation Backend: Python, Django, Flask, Node.js โ€“ building scalable AI-ready APIs and services Frontend: React, JavaScript, HTML5, CSS โ€“ seamless UIs for intelligent platforms AI App Development: Bridging smart ML backends with real-time user interaction iOS Developer AI experience: Creating smart apps with on-device ML, API integrations, and OpenAI-based features AI SaaS Developer work: Architecting cloud-native, multi-tenant, intelligent platforms from scratch Data Pipelines: Scrapy, Selenium, BeautifulSoup โ€“ automation and enrichment for ML-ready datasets Databases: PostgreSQL, MySQL โ€“ fast, optimized for AI data structures DevOps & Cloud: AWS, Docker, CI/CD โ€“ deploying resilient, auto-scaling AI systems Security & Performance: Rate limiting, smart caching, secure model access & fast inference Integration tools like n8n and make.com are also part of my automation stack, helping bridge services and trigger AI workflows. ๐Ÿง  AI-Powered Use Cases AI SaaS Platforms โ€“ as a Full Stack AI SaaS Developer, I handle everything from architecture to deployment AI-Powered Mobile Apps โ€“ using my App Developer with AI skills to build cross-platform intelligent tools OpenAI Integrations โ€“ ChatGPT, embeddings, function calling, prompt engineering E-commerce & Fintech โ€“ AI personalization, fraud detection, smart recommendation engines Business Automation โ€“ AI-enhanced tools saving 1000s of hours through intelligent logic Consulting & Hiring โ€“ helping teams find the right AI strategy, tools, and devs โ€“ often recommending make.com or n8n for early-stage MVPs ๐Ÿ’ฅ Why Choose Me? ๐Ÿ’ฐ \$200K+ earned on Upwork | โœ… 69+ AI/data-intensive projects | โญ 100% Job Success โœจ 13+ Years of Real-World Experience ๐Ÿ“Š AI Strategy & Execution Mindset ๐Ÿ”„ Agile, Communicative, Results-Oriented ๐Ÿš€ Future-Proof Tech Stack & Smart Thinking Letโ€™s build intelligent products that stand out. Iโ€™m currently working on AI-based appointment systems, chatbot platforms, ML pipelines, OpenAI-powered apps, and custom SaaS tools with AI at the coreโ€”often connecting them through make.com, n8n, or both for smooth automation and integration. Looking forward to helping you shape the intelligent digital future! ๐Ÿš€
    Featured Skill Sinatra Framework
    AI Development
    Python
    Python Script
    Data Scraping
    Django
    React
    Bot Development
    AI App Development
    HTML
    CSS
    Amazon Web Services
    JavaScript
    Natural Language Processing
    Machine Learning
    Artificial Intelligence
  • $45 hourly
    • 5.0/5
    • (4 jobs)
    โญ Upwork Certified PHP Developer ๐Ÿ† Top Clutch Developers Ukraine 2021 ๐Ÿ… Upwork Breakthrough of the Year 2020 I specialize in backend development with over 10 years of experience building efficient, scalable, and robust web applications. As an experienced PHP developer, I have extensive knowledge in all major PHP frameworks, including Laravel, Symfony, CakePHP, CodeIgniter, and Yii2. If thereโ€™s a tool or technology we havenโ€™t used before, Iโ€™m confident in my ability to master it and apply it effectively to your project quickly. As a senior PHP developer, I excel in developing complex business solutions, including ERP systems, CMS platforms, API integrations for mobile apps (real-time and messaging functionality included), and various types of admin panels. My expertise in PHP MySQL enables me to build high-performance backend systems that seamlessly integrate with databases. My front-end expertise complements my backend work, allowing us to deliver high-quality full stack developer solutions using tools like Laravel, Inertia + VueJS, TALL stack, Angular, and Svelte. As a full stack PHP developer, I work with both backend and frontend technologies to build seamless, integrated solutions. I am highly proficient in creating both WordPress and PHP WordPress projects, allowing businesses to have powerful, flexible websites that are easy to manage. I have extensive experience in industries such as eCommerce, insurance, logistics, postal services, healthcare, sports and fitness, recruitment, IT, and service-based companies. As a dedicated back-end developer, Iโ€™m always quick to research and adapt to new domains as required. Some highlights of my capabilities as a PHP developer include: - High-Load Solutions: Successfully developed backend solutions for grocery store chain apps handling over 1 million requests and 300,000 asynchronous tasks daily on a single server, ready for seamless scaling. - Infrastructure and Tools Expertise: Skilled in AMQP (RabbitMQ, Redis), relational and NoSQL databases (PostgreSQL, MySQL), networking tools (Nginx, Apache), S3 storage systems (AWS S3, Minio), payment systems (Stripe, Authorize.net, PayPal), and messaging tools (Firebase, AWS SES, SendGrid). In addition to PHP development, I have experience with jQuery, which allows me to create dynamic, interactive user interfaces for web applications. I have also worked with Node.js to build scalable, fast back-end solutions for modern applications. As a senior PHP developer, I ensure that each project is completed with high-quality and cost-effective solutions. I also focus on building scalable architectures that can grow with the business. Whether it's PHP laravel, PHP Script, or WordPress development, my experience spans a variety of backend and frontend frameworks to deliver a full stack of technology solutions.. Also, I'm with a team of experienced developer. And here is ๐Ž๐ฎ๐ซ ๐“๐ž๐œ๐ก ๐€๐ซ๐ฌ๐ž๐ง๐š๐ฅ: ๐Ÿ“ฒ Mobile Development: Swift | Kotlin | React Native | Flutter | Objective-C | Java | Firebase ๐Ÿ’ป Front-End: ReactJS | VueJS | Angular, Svelte, Backbone, JQuery, HTML5, CSS3, TailwindCSS, Bootstrap, Material UI, Semantic UI, GraphQL โš™ Back-End: NodeJS | Python | Ruby | Java | API servers ๐ŸŽจ UI/UX Design: Figma, Sketch, Adobe XD, Wireframing, Prototyping, Responsive Design, Design Systems, User Flow Analysis, A/B Testing, UX Audits ๐Ÿ”น Frameworks & CMS: Nuxt.js | Express.js | Django | Next.js | Sails.js | Laravel | WordPress | Shopify ๐Ÿงฉ Quality Assurance: Manual and automated functional testing Feel free to reach outโ€”Iโ€™d love to hear about your project and share insights on how we can build it together! ๐Ÿ”‘ Keywords to find me: PHP Developer CakePHP Symfony Laravel Back-end developer| Full-Stack Developer Laravel Symfony CakePHP CodeIgniter Yii2 TALL Stack Laravel Inertia VueJS Angular Svelte React JavaScript Frontend Development PostgreSQL MySQL MongoDB PHP Ecosystem Tools wordpress developer php developer full stack developer php laravel web developer php wordpress python developer php mysql senior php developer full stack php front end developer laravel developer wordpress
    Featured Skill Sinatra Framework
    CakePHP
    Web Application
    Back-End Development
    PHP Script
    Vue.js
    Node.js
    HTML
    Custom PHP
    CSS
    Laravel
    MySQL
    jQuery
    WordPress
    JavaScript
    PHP
  • $35 hourly
    • 5.0/5
    • (24 jobs)
    I have built 20+ real-world apps with Laravel and Vue.js. From simple sites to complex platforms. I know these technologies inside out. What sets me apart: - Full mastery of Laravel features: Eloquent ORM, middleware, authentication, queues, events - Vue.js expertise: Vue 3, Composition API, Vuex/Pinia, Vue Router, custom components - RESTful API development with Laravel and API consumption with Vue.js - Performance optimization for both backend (Laravel) and frontend (Vue.js) - Database design and query optimization with MySQL - Integration of Laravel + Vue.js using Laravel Mix or Vite I solve problems fast. Clean code. No overengineering. Need a Laravel + Vue.js expert? Message me now or send an invite. I respond within minutes and offer free initial consultations 19.03.2025
    Featured Skill Sinatra Framework
    MongoDB
    Web Design
    MySQL
    Laravel
    HTML
    API Integration
    CSS
    Python
    Web Application
    Node.js
    PHP
    React
    API
    Web Development
    JavaScript
  • $25 hourly
    • 4.9/5
    • (198 jobs)
    Senior Full-Stack Developer with a track record of building innovative web and mobile applications that propel startups and businesses forward. Leveraging my expertise in both backend development (AI, ML, Python, Django, Flask) and frontend development (JavaScript - MEAN, MERN, MEVN, PERN stack, Node, Typescript, React), I deliver high-performance solutions tailored to your specific needs. Whether you're looking to build a secure and scalable Web Application (RESTful APIs), a user-centric mobile app (React Native, Flutter), or a minimum viable product (MVP) to validate your market fit, I can guide you through the entire development process, ensuring exceptional results. My expertise: - ๐Ÿ… Front-end Development JavaScript / React / React-Native / Redux / Angular / Ionic / Vue / HTML5 / CSS3 / Bootstrap-4 / Plotlyjs Chart/ Charts.js / Nest.js / Next.js ๐Ÿ… Back-end Development PHP / Python / Node / Express / REST API / PostgreSQL / MySQL / MongoDB / DynamoDB / Magento / CodeIgniter / Laravel / React Native ๐Ÿ… AI Development Services: Generative AI: Delve into the realm of creative AI, where machines produce realistic and novel content across various mediums. Computer Vision: Equip your systems with the ability to understand and interpret visual data, enabling applications like image recognition and object detection. NLP: Empower your projects with language understanding capabilities, facilitating tasks such as sentiment analysis and text generation. ๐Ÿ… Low Code/No-Code Solutions I can streamline your development process by leveraging the power of low-code/no-code platforms, ensuring faster project delivery and cost-effectiveness for suitable projects. ๐Ÿ… SaaS Development ๐Ÿ… MVP Development ๐Ÿ… DevOps (CI/CD pipelines, AWS, Terraform, Azure, Docker, Kubernetes) ๐Ÿ… AWS Services Amplify / Lambda / AppSync / EC2 / CloudFront / EC2 / S3 Bucket / CodeDeploy & CodePipeline / Microservices
    Featured Skill Sinatra Framework
    AI Chatbot
    Back-End Development
    SaaS Development
    Web Application
    Flutter
    MERN Stack
    Laravel
    Android App Development
    Mobile App Development
    iOS Development
    ChatGPT
    Node.js
    Blockchain
    JavaScript
    AI App Development
  • $30 hourly
    • 5.0/5
    • (17 jobs)
    ๐ŸŽฏ ๐—™๐˜‚๐—น๐—น ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜๐—ถ๐˜€๐—ฒ! โœจ ๐—ฆ๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€๐—ณ๐˜‚๐—น๐—น๐˜† ๐—ฐ๐—ผ๐—บ๐—ฝ๐—น๐—ฒ๐˜๐—ฒ๐—ฑ ๐Ÿ”Ÿ+ ๐—™๐˜‚๐—น๐—น ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐—ฝ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜๐˜€! ๐Ÿ’ก ๐—ž๐—ป๐—ผ๐˜„ ๐—ฎ๐—น๐—น ๐˜๐—ต๐—ฒ ๐—ถ๐—ป๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ผ๐˜‚๐˜๐˜€! ใ…คใ…คใ…คใ…คใ…คใ…คใ…คใ…คใ…คใ…คใ…ค ๐Ÿš€ Click ยซ๐ˆ๐๐•๐ˆ๐“๐„ยป and letโ€™s build something amazing together! ๐Ÿ’ฐ Trusted Software Developer by Startups, Small Businesses & Enterprises. ๐Ÿ’Ž8 Years of experience in: Full Stack Development, React.js Next.js Node.js, Web Developer. ๐Ÿ“ˆ 4.8/5 Referral Rate. ๐ŸŽฏ 10+ Completed Full Stack Projects. I am a React developer and I work across various industries, front end developer and full stack developer bringing expertise in developing innovative and efficient solutions:โ€จ ๐Ÿฆ FinTech โ€“ Building secure and scalable financial applications (fintech app,fintech developer). ๐Ÿฅ Healthcare IT โ€“ Working on tech solutions for medical records, appointment systems. ๐Ÿ’ฐSaaS โ€“ Building cloud-based software for different business needs and saas marketing, saas. ๐Ÿ’ณ E-commerce โ€“ Creating online stores, payment systems, and product management tools develop. ๐Ÿ‹๐Ÿปโ€โ™‚๏ธ Health & Fitness โ€“ Developing apps for workout tracking, nutrition planning, and wellness program โ€จSkills and Technologies:โ€จ โš™๏ธFrontend Development: Iโ€™m proficient in React.js, Reactjs, React Native, Javascript HTML5, Next.js CSS3, SASS/SCSS, Bootstrap, Tailwind CSS, Material UI, UI animations, and CSS Grid also im react native developer.โ€จ โš™๏ธBackend Development: I have expertise in React.js Full Stack Node.js, Express.js, Nest.js, RESTful APIs, GraphQL, and integrating third-party APIs and react.js node.js is my main expertise.โ€จ โš™๏ธDatabase Management: Iโ€™m skilled in working with MongoDB, SQL, PostgreSQL, Firebase, Google Cloud Firestore, Mongoose ODM, Sequelize, and more.โ€จ โš™๏ธAPI Integration: I have hands-on experience integrating various APIs, including ChatGPT API, OpenAI API, Twilio API, Telegram API, Facebook APIs, and payment gateways.โ€จ โš™๏ธDevOps & Tools: Iโ€™m experienced React.js Full Stack with frontend react, React.js, AWS, Azure DevOps, Docker, Webpack, Git, GitHub, GitLab, Vercel, and Firebase Hosting. Iโ€™m a javascript developer and java script developer with 8+ years of experience, working as a full-stack developer, back-end developer, and front-end developer. I specialize as a Mobile developer and Software developer, having completed 10+ full stack projects using react.js, next.js, node.js, and strong web design practices. As a web developer and react developer, I deliver scalable platforms and apps, combining mobile app development as a react native developer with frontend expertise. My work as a front end developer and back end developer ensures intuitive UX and solid backends with technologies like node.js and react. I create React.js Full Stack AI-powered products as a full stack ai developer and ai developer, integrating open ai api and modern automation tools. Working as a software react and software full stack engineer, I deliver advanced solutions based on react web developer and react typescript principles. With backend strength as a node.js developer and back end python developer, I manage scalable infrastructures, connecting systems via APIs and databases like MongoDB, PostgreSQL, and Firebase. My path as a react js developer focuses on building high-performance, secure, and flexible applications. I concentrate on react js, next.js, node.js, mobile app development, and AI integrations, without using wordpress, vue, angular, laravel, PHP, or webflow, staying focused on modern, scalable full-stack development. โ€จโ€จ๐Ÿ”My expertise does not cover wordpress, vue, angular, laravel, PHP, webflow, wordpress developer, mobile app developer, python, machine learning, banking, writer. Letโ€™s bring your project to life! ๐Ÿš€ โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž โ€Ž Last Update 03.06.2025
    Featured Skill Sinatra Framework
    Ecommerce Platform
    Artificial Intelligence
    HTML
    React Native
    Back-End Development
    Front-End Development
    CSS
    Software Development
    Full-Stack Development
    Web Development
    JavaScript
    Node.js
    TypeScript
    Next.js
    React
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