Hire the best Ruby Developers & Programmers in Poland

Check out Ruby Developers & Programmers in Poland with the skills you need for your next job.
  • $50 hourly
    FullStack Software Engineer with comprehensive knowledge in Web development and experience in building projects from scratch to success. Have strong expertise in Rails with 7+ years of active commercial practice. Skilled in maintaining applications with wide microservice infrastructure and making architecture solutions for small and big projects. Respect fully tested and well-documented code. Good communication skills and a capable team player.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Docker
    PostgreSQL
    Amazon EC2
    CI/CD
    MongoDB
    AngularJS
    Kubernetes
    API
    Ruby on Rails
  • $35 hourly
    Hello! Thank you for taking the time to review my profile. I am a highly versatile full-stack software engineer with over 7 years of experience. I specialize in transforming ideas into scalable products that serve thousands to millions of users. I am committed to delivering high-quality solutions and ensuring client satisfaction. 🥇 Skills Breakdown Languages: ECMAScript, TypeScript, Python 3, HTML, CSS, Sass, SCSS, GraphQL, Objective-C, Swift, C#, and more. Frameworks: Express.js, Bootstrap, Electron, Spring Boot, and more. Libraries/APIs: Redux, React Redux, jQuery, Vuex, and others. Tools: Docker Compose, GitHub, Slack, and more. Storage Solutions: Redis, OpenXML, and others. Development Paradigms: Functional Programming, Continuous Integration/Deployment, and more. Platforms: DigitalOcean, Windows, iOS, Android, and more. Additional Skills: Cloudflare, IT Security, Chrome Extensions, and more. 🥇 Experience Senior Software Engineer: Over 5 years Front-end Development: 7 years Full-Stack Development: 7 years I look forward to collaborating with you. Please feel free to 🎁INVITE🎁 me!
    vsuc_fltilesrefresh_TrophyIcon Ruby
    React Native
    Flutter
    Vue.js
    web3.js
    Django
    Laravel
    Ruby on Rails
    Next.js
    Node.js
    React
    Java
    Python
    TypeScript
  • $45 hourly
    Bringing over a decade of expertise, I'm a proficient team manager and seasoned IT professional specializing in diverse domains: - edutech: innovating educational experiences through technology. - fintech: bridging web3 and web2 components, contributing to financial project success. - healthcare: applying technology to address complex challenges in the healthcare sector. - ecommerce: crafting robust, scalable solutions for varied business needs in digital commerce. - legaltech: streamlining legal processes with technological solutions, ensuring efficiency and compliance. My extensive tech stack includes: - backend: proficient in RoR and Node.js for versatile, high-performance solutions. - frontend: expertise in modern technologies such as React.js for an immersive user experience. - cloud Platforms: seasoned in AWS and GCP, strategically aligning projects for success.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Database Modeling
    React Native
    Ruby on Rails
    Amazon Web Services
    Sinatra
    Scrum
    React
    Database Design
    Web Application
    TypeScript
    JavaScript
  • $29 hourly
    Skilled and passionate Designer with a strong background in product design and development, woodworking, 3D modeling & rendering, task automation, cnc. We run a small family business specializing in manufacturing wood and steel/metal products. I have both theoretical and practical, hands-on experience. With a proven track record, I've successfully collaborated with individuals, private companies, public units creating multiple unique and beautiful products. Whether it's a custom woodworking project or a complex product design, I try to bring a unique blend of creativity and expertise to the table. ---------- What I do: Product design and development – product concept, ready to manufacture product (from scratch to end). Woodworking structure design - patio, pergola, playhouse, playset, swing set, gazebo, framing, house, shed, furniture and much more. DIY plans – for business or individual needs. Instructions - step by step instructions, instruction manuals, assembly instructions. 3D modeling – working mainly in CAD software called Sketchup Pro, creating simple and complex 3d models, dynamic component models. Also using Fusion 360. Rendering – creating quality product visualisations. 2D drawings - conceptual drawings, production drawings, technical drawings. Material list – material list, cust list, shopping list, bill of materials ---------- Skills Highlights: Product Design - from concept to creation, I specialize in designing products that captivate and function flawlessly. Woodworking – not many things give more pleasure than bringing ideas into life by getting my hands dirty. CNC – having our own cnc routers, creating designs, toolpaths, generating gcode and operating 3D Modeling and Rendering - I bring ideas into the digital realm, providing accurate models and quality visualizations. Task Automation - Streamlining workflows through automation, boosting efficiency and productivity using existing tools. ---------- Passionate About: Design: I love creating a product and seeing what it looks like before its physical implementation Technology: Embracing the latest technologies in work and everyday life, appreciating the improvements in the quality of life thanks to technology enhancement. Nature: love spending time outside actively, hiking in the forest or mountains.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    GIMP
    Cost Estimate
    Task Automation
    JavaScript
    Autodesk Fusion 360
    CSS
    HTML
    Python
    Microsoft Excel
    Google Sheets Automation
    Google Sheets
    Wood Engraving
    Product Design
    SketchUp
  • $40 hourly
    A seasoned CTO with over 10 years of experience in the tech industry. I can help you develop an application or website starting from doing the estimation up to the delivery and maintenance. My services: React, Node.js, React Native, Ruby on Rails, Ruby, Python, Django, Flask, Java, AWS, No-Code Development, DevOps, JavaScript, Flutter, Serverless Stack, GCP, AWS, API Gateway. Checkout some interesting projects I worked on in the work history and portfolio sections below ⤵️
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Google Cloud Platform
    AWS Development
    Full-Stack Development
    Web Development
    No-Code Development
    Serverless Stack
    DevOps
    Flutter
    React Native
    Node.js
    React
    Python
    Java
    JavaScript
  • $65 hourly
    I am a diligent developer with over four years of experience in web development, who transforms design concepts into user-friendly applications efficiently. I specialize in Front-End development, with my primary stack revolving around React, MobX, Tailwind CSS to craft responsive and visually appealing user interfaces, but I also possess the flexibility to contribute to Back-End projects. My core expertise is in: Front-End: • Proficient in React.js (including React Hooks), JavaScript, React Router (or custom state-based routing), Tippy.js, Popper.js, React Datepicker, react-window, react-virtualized, and react-cool-virtual. • MobX and mobx-state-tree for efficient state management. • Tailwind CSS, Windi CSS, HTML5/CSS3, SCSS, and HTML5 Canvas for crafting stunning user interfaces. • Well-versed in Webpack, Vite, Jest, Yarn/NPM, Babel, and ESLint • Proficient in building RESTful API applications While my primary focus is Front-End, I also possess versatile knowledge in Back-End technologies: • Ruby, Clojure, Java, and Kotlin • Kafka • PostgreSQL These technologies empower me to contribute to Back-End development tasks, broadening my skill set and enabling me to work on a variety of projects.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Jest
    Mobx
    Front-End Development
    Tailwind CSS
    Ruby on Rails
    PostgreSQL
    AJAX
    JavaScript
    React
    CSS 3
    HTML5
    SCSS
  • $50 hourly
    Full stack developer | Ruby on Rails && Shopify I have worked on many projects using Ruby on Rails and Shopify. I will deliver quality result to you always. My skills: Ruby on Rails, Shopify, JavaScript, Python, Vue.js, React.js, wordpress, React Native
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Shopify Apps
    Stripe
    Shopify
    PHP Script
    Python Script
    Vue.js
    Node.js
    React
    WordPress
    Ruby on Rails
    JavaScript
    PHP
    Laravel
    Python
  • $70 hourly
    I enjoy learning new things and solving problems. For most of my career I've been looking for an environment where I can learn from others and improve my skills. I also like to share my knowledge and help others become a better version of themselves. I've been mostly working with Ruby but I'm not afraid to try out other technologies. I'm really into understanding how things work under the hood and getting down to the nitty gritty. Most recently I've been leaning towards infrastructure side of things, building a platform for other developers that they enjoy working with. I can help your business by improving an existing application, fixing annoying bugs and automating things or I can help you build a brand new one! I also enjoy talking with people so let's get in touch and have a chat!
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Software Development
    Software
    Ruby on Rails
  • $78 hourly
    Senior ruby developer with vast experience in monolithic ruby on rails application and ex-maintainer for open-source ecommerce framework SpreeCommerce
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Redis
    PostgreSQL
    Ruby on Rails
  • $90 hourly
    As the CEO/CTO of Webgate Systems LTD and a seasoned Tech Lead with a rich background in software engineering, I bring over a decade of expertise in transforming ideas into scalable digital solutions. Specializing in Ruby on Rails, I've led the development and optimization of high-load SaaS platforms, AI Integrations, significantly enhancing performance efficiency and customer satisfaction. My leadership has consistently propelled project completions and revenue growth across diverse teams and projects. What I offer: Expertise in Ruby on Rails: Developed and optimized numerous large-scale applications, improving system reliability, performance, and security. Proven Leadership: Successfully scaled a team of 30+ remote professionals, enhancing project capacity and team productivity through innovative strategy and effective Agile methodologies. Comprehensive Project Management: From ideation to launch, I ensure seamless execution, incorporating TDD/BDD practices for robust and reliable software delivery. System Administration and DevOps: Proficient in Linux/UNIX administration, orchestration with Ansible, and virtualization with LXC/Docker, ensuring high availability and security. Effective Communication: Fluent in English, Polish, Russian, and Ukrainian, I value regular updates and collaborative problem-solving to meet project milestones. My technical toolkit includes: * Programming languages: Ruby/Ruby on Rails * Frontend: HTML, CSS, JavaScript/jQuery * Databases SQL/NoSQL: MySQL, PostgreSQL, Redis, Memcache, MongoDB etc * DevOps: GIT, Github, Gitlab, CI/CD pipelines, Ansible, Docker, QEMU/KVM, XEN * Project Management: Agile, Scrum, XP, Kanban, Jira, Confluence I'm passionate about driving innovation and efficiency in every project I undertake. Let's connect to discuss how I can bring your next project to fruition with the quality and dedication it deserves.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    REST API
    Virtualization
    Atlassian Confluence
    Jira
    Kubernetes
    Ansible
    Docker
    Scrum
    PostgreSQL
    MySQL
    IT Management
    Linux
    System Administration
    Ruby on Rails
  • $60 hourly
    Since 2006 I have developed and used my strong analytic skills to help clients create high-quality code following design patterns, which enabled them to build fast, reliable and scalable applications. Technologies: Ruby on Rails, node.js, react, angular, ember.js, meteor, react native, Swift, Objective-C, MySQL, PostgreSQL, MongoDB, Firebase Key accomplishments sageone.com - cloud-based accounting solutions for small business. Lead small developers team arcadiapower.com - clean energy provider Decoupled and extracted billing related code into a separate service. Helped build a base for a large set of data scrapers. arsmacros.com - Automation utility for Remedy ARS Mid-Tier and ITSM Suite. Reverse engineered sophisticated JavaScript application, implemented the utility using flux architecture unlocked.footlocker.com - Foot Locker's CMS and blog Backed implementation. Prepared app for marketing campaign - it handled large traffic. offcents.com - Leaded a group of developers and created application which automatically detects and calculates your carbon emissions Education Mathematics, University of Zielona Góra (Uniwersytet Zielonogórski) 2001 - 2006 Specialization: computer science in mathematics. Two times scholarship on the basis of academic merit (including the highest) Improved Theorem’s proof from a book related to combinatorial analysis. Invented own integer numbers sorting algorithm with O(n) complexity. Electrotechnics, University of Zielona Góra (Uniwersytet Zielonogórski) 2000 - 2001 Specialization changed to mathematics
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Ruby on Rails
    JavaScript
    C++
    CSS
    HTML
  • $56 hourly
    Professional Summary An experienced developer with over 18 years in web development. I specialize in Python, Ruby, PHP, JavaScript, Solidity and Node.js. I have deep knowledge in blockchain technologies, including the development of smart contracts in Solidity and the creation of decentralized applications (DApps). Key Skills Programming Languages: - Python, Ruby, PHP, JavaScript, Node.js, Solidity Frameworks and Platforms: - Ruby on Rails, Laravel, Django, Flask, Angular, React, MERN Stack, Magento, Shopify, WordPress Blockchain Technologies: - Ethereum, Binance Smart Chain, Solana, smart contracts, NFT, DeFi, DEX (Uniswap, Sushiswap, PancakeSwap), tokens, swaps, pools, DApps, Web3 Chatbot Development: - Telegram Bot API, WhatsApp API, ChatGPT, OpenAI API, Green API, AI bot creation API and Service Integration: - **Payment Systems:** Stripe, PayPal, Bluesnap, EasyPay, NMI, Braintree, Recurly - **Communications:** Twilio API, Ontraport, Zapier, Infusionsoft, GoHighLevel, ClickFunnels - **Marketing and CRM:** Mailchimp, Aweber, Drip, Constant Contact, GetResponse, Salesforce, Kajabi, MarketHero - **Social Networks:** Facebook API, Twitter API, LinkedIn API - **Google Services:** Google Calendar API, Google Ads API, Google Maps API, GoToWebinar - **Others:** WebMoney API, ShipStation, Avalara, EasyPost, Interspire, MadMimi, SendLane, WebinarJam, ZenDirect Databases: - MySQL, PostgreSQL, MongoDB, NoSQL Tools and Technologies: - Git, Docker, AWS, Heroku, CI/CD, Agile/Scrum, NoCode, Webflow, Zapier Additional Skills: - AI integration, utilizing Copilot and ChatGPT to accelerate development - Data analysis, image and video processing, voice recognition - Process automation and script creation - Deployment and administration of online stores and CMS Certificates - **Upwork Skill Certification - Python Development** - **Ruby on Rails:** - **Python:** - **JavaScript and Node.js:** - **PHP:** List of Tasks I Can Perform Blockchain and Smart Contracts: - Development and audit of smart contracts in Solidity - Creation of decentralized applications (DApps) on Ethereum, Binance Smart Chain, and Solana - Development of NFT projects and integration with marketplaces - Creation of arbitrage bots for DEX platforms (Uniswap, Sushiswap, PancakeSwap) - Integration of Web3 and blockchain functionality into existing applications Web Development: - Building web applications using Python, Ruby, PHP, JavaScript, Node.js - Front-end development with Angular, React, MERN Stack - Deployment and administration of online stores on Magento, Shopify, WordPress - CMS integration and content management system setup Chatbot Development and AI: - Creating chatbots for Telegram and WhatsApp using AI technologies (ChatGPT, OpenAI API) - Developing AI bots with natural language processing, voice messaging, and image handling capabilities - Integrating bots with CRM systems and other services API and Payment System Integration: - Integration of payment gateways: Stripe, PayPal, Bluesnap, EasyPay, NMI, Braintree, Recurly - Working with communication APIs: Twilio, Ontraport, Zapier, Infusionsoft - Integrating social networks and marketing platforms: Facebook, Twitter, LinkedIn, Mailchimp, Aweber - Setting up and integrating Google services: Google Calendar, Google Ads, Google Maps Data Analysis and Automation: - Developing scripts for data analysis, image and video processing, voice recognition - Automating business processes using Zapier, Webflow, NoCode - Creating parsers and programs to perform various tasks Additional Services: - Conducting audits of web applications and smart contracts - Optimizing application performance and security - Setting up CI/CD pipelines and managing DevOps processes - Consulting on using AI tools to accelerate development Other Experiences: Smart Contracts, Blockchains, NFT, Shopify, Magento, WordPress, Ruby on Rails, Laravel, Stripe, PayPal, Bluesnap, EasyPay, NMI, Braintree, Recurly, MySQL, PostgreSQL, Facebook API, Twitter API, LinkedIn API, Yandex API, Twilio API, Stripe API, Google Calendar API, Google AdWords API, Google Maps, Yandex Maps, WebMoney API, Ontraport, Infusionsoft, Zapier, Aweber, Drip, Mailchimp, ShipStation, Avalara, Constant Contact, EasyPost, GetResponse, GoToWebinar, Google Ads, Interspire, Kajabi, Mad Mimi, MarketHero, Salesforce, SendLane, WebinarJam, ZenDirect, AWS, Google Cloud Platform, Docker, Jenkins, CircleCI, GitHub Actions, Bitbucket, GitLab, Redis, Memcached, Elasticsearch, Kafka, REST APIs, GraphQL, PyTorch, OpenAI API, ChatGPT API, Agile methodologies, Scrum, Jira, Slack API, HubSpot API, Marketo, Zendesk API, BugSnag, Google Analytics, OAuth, JSON, XML, Microservices, WebSockets, Express.js, Flutter, Truffle, Hardhat, Web3.js, Ethers.js, MetaMask integration, DeFi protocols, DAO, Flask, FastAPI, Sinatra, Vue.js, Ember.js, Next.js, Bootstrap --- - GitHub: sergeychernyakov
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Shopify
    Telegram API
    Smart Contract
    Blockchain Development
    Solidity
    Laravel
    WordPress
    Ruby on Rails
    Django
    ChatGPT
    JavaScript
    Node.js
    PHP
    Python
  • $60 hourly
    I am full stack web developer with experience among various technologies. At the moment I am focused on Ruby on Rails on backend and Ember and React technologies. Apart from web technologies I have many years of experience in Linux/Unix system administration. I have proven to have great communication and team work skills. In my work I employ TDD process, and I use GIT to keep code safe and team work more efficient. My experience: Back-End: - Ruby on Rails (3, 4, 5) / Ruby - Django / Python - TDD/BDD, Rspec - Git - PostgreSQL, MySQL, MongoDB - Payment processing Front-End: - ReactJS - EmberJS - CSS3/SASS/SCSS - HTML5/HAML/SLIM/ERB - Bootstrap - JavaScript DevOps: - AWS - Heroku - Docker - Capistrano - RH Linux - Digital Ocean - Continous Integration (CircleCI, Codeship, SemaphoreCI, Heroku Pipelines) - DNS Administration External APIs: - Mandrill - Mailchimp - Sparkpost - MixPanel - Facebook API - Google API
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Linux System Administration
    Amazon Web Services
    HTML
    Ember.js
    Docker
    JavaScript
    Ruby on Rails
    Django
    React
  • $250 hourly
    Hello I am a full stack Web developer focused on Ruby and Rails. I have experiences with web application development from scratch to production with linux. database MySQL, PostgreSQL, Mongodb. Main skill Set - Test frameworks: FactoryGirl, Rspec, TestUnit, Capybara. - Infrastructure experiences: Heroku, Amazon Web Service (EC2), Rackspace, Engineyard; Payment process experiences: Stripe, Paypal; FrontEnd: jQuery, PrototypeJs, Bootstrap, CSS3 - Javascript, jQuery, Node.js, Backbone.js, Knockout.js, Angular.js - Twitter Bootstrap, Compass - HAML, ERB, SCSS, SASS - Devise, Gritter, Cells, FriendlyId, SimpleForm, Sunspot gems
    vsuc_fltilesrefresh_TrophyIcon Ruby
    RSpec
    GitHub
    PostgreSQL
    MySQL
    Python
    JavaScript
    Ruby on Rails
    jQuery
  • $50 hourly
    Hello, I am very good at major Browser extensions such as Google Chrome Extensions, FireFox plugins, Safari Extensions and Internet Explorer add on based on core JavaScript skills and C/C++. Also I have over 9 years of web development experience based on Html5 / Css3. Currently Bootstrap / Foundation is the mandatory skills for web developers and I have great skills in the aspects. If you have jobs relating to the following items, don't waste your time. I am the right person who you are looking for. - C / C++ / C# / Asp.net - PHP / Wordpress / Magento / Opencart / CodeIgnitor / Zend / Laravel / Symfony - Ionic / PhoneGap / AndroidApp - Ruby / Ruby on Rails / Spree Commerce. - Mysql / Postgres / MongoDB / Database Administration - JavaScript Full / Mean stack - Linux server administration - Grunt, Gulp and Bower Warm regards, Paul
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Linux System Administration
    Spree
    Google Chrome Extension
    AngularJS
    Git
    PHP
    JavaScript
    Laravel
    Ruby on Rails
  • $200 hourly
    A seasoned technology leader with over 14 years of experience, My expertise spans roles such as Data Architect & Software Engineer, CTO, VP, and Consultant, where I've led digital transformations for enterprises and propelled startups to significant valuations ($80mio - $5B+) across the US, UK, EU. My extensive experience covers diverse industries including Fintech, Observability, Fraud Detection, Biotech, and Martech. I excel at turning complex challenges into future-proof solutions that give businesses a competitive edge. (Saas, DataAggregators, ERP/CRM's, Service-as-a-Software, Distributed systems, Microservices, Event Driven Systems) 🛠️ Core Technical Expertise: Programming & Web Development: Python, Ruby. Data Engineering: PostgreSQL, MongoDB, Cassandra, Neo4j, ClickHouse; ETL with Apache Airflow, Apache NiFi, Talend; real-time processing with Apache Spark, Flink, Kafka, Druid; data quality/governance with Great Expectations, Apache Atlas; scalable data infrastructures using Amazon S3, Redshift, Google BigQuery, Azure Data Lake, Snowflake, Data Mesh. AI & Machine Learning: Model development with TensorFlow, PyTorch, Scikit-learn, AWS SageMaker; deep learning with Keras, TensorFlow; NLP tools like OpenAI, LLaMa, NLTK, SpaCy; applications in reinforcement learning, fraud detection, predictive maintenance, recommendation engines, and GANs for computer vision. DevOps & Cloud: CI/CD with Jenkins, GitLab CI/CD, CircleCI; IaC using Terraform, Ansible, AWS CloudFormation; monitoring/logging with Prometheus, Grafana, ELK; high availability with Kubernetes, Docker, load balancing. 🤝 Professional Services: • Fractional CTO-as-a-Service: Providing high-level IT leadership, strategic direction, and technology roadmap development aligned with business objectives. • Product Development & PoC Lab: Guiding projects from proof-of-concept to market launch, overseeing the full product lifecycle with a focus on innovation and scalability. • AI/ML & Data Architecture: Designing and implementing advanced AI and data solutions to drive business insights and operational efficiency. • Strategic Technology Consulting: Aligning technology initiatives with business strategies to foster growth and competitive advantage. ⭐ Key Achievements: • 14+ Years in Technology Leadership: Extensive experience leading teams and projects to success. • Harvard Business School Graduate & AWS Certified Solutions Architect: Specialized in tech ventures, leadership, and disruptive strategies. • CEO of Busy Rebel: Founder and leader of a software development agency delivering innovative solutions. • 8 Years in Leadership Roles (CTO/VP): Led and mentored teams in complex projects. • Enterprise Advisor: Supported digital transformation for enterprises. • Technology Mentor to High-Growth Startups: Guided startups from ground zero to $400M in scaling and technology strategy. • 25+ Successful Projects Delivered: Consistently met and exceeded stakeholder expectations. • Led 20+ High-Performance Teams: Built and managed teams focused on collaboration and excellence. • Expertise in 30+ Technologies: Specialized in solution architecture, AI/ML, big data, and engineering. 💡 Methodologies: Agile Leadership, Lean UX, Systems Thinking, Sustainability, Data-Driven Decision Making, Innovation & Disruptive Thinking, Growth Hacking, Collaboration & Collective Intelligence, Value Stream Mapping & Process Optimization, Understanding the 'Why', Leadership by Example, Continuous Learning & Adaptability. I'm eager to bring my extensive expertise and passion for innovation to your next project, driving exceptional results and creating lasting impact. Cheers
    vsuc_fltilesrefresh_TrophyIcon Ruby
    LLaMA
    AI Development
    Vector Embedding
    Retrieval Augmented Generation
    Product Development
    Data Engineering
    ClickHouse
    SaaS
    Machine Learning
    Elasticsearch
    Kubernetes
    Amazon Web Services
    API Development
    Software Architecture & Design
  • $60 hourly
    I am the go to guy resolving any tech problems in your company. Value is what I am focusing on. I am mostly experienced with Ruby on Rails and React so probably a full-stack engineer title sticks for me, but I am not only focusing on the programming work. My goal is to understand your business and its problems helping you operate more smoothly, worrying less about development. Delegate any challenge to me, I will find the solution to it allowing you to focus on your things. Background: As mentioned I am seasoned full-stack dev, mostly experienced with Ruby on Rails(also being it's open-source contributor) and React. But during over 6 years been working on vast majority of projects in many different programming languages and on different positions. I am not scared of building web scrapers, reporting tools or managing servers(DevOps). Being an all-rounder helps me understand the businesses on multiple levels and have a broad perspective which results in the happiness of my freelancing clients. Project Highlights: 🔹 COVID-19 Vaccination Passport Platform: I architected a system from scratch for a major German city, efficiently managing over 500,000 records, ensuring security, and maintaining high scalability during peak demands. 🔹 Telehealth Platform for Physiotherapists: I spearheaded a redesign of search functionalities, achieving a tenfold improvement in performance and markedly enhancing the user experience. 🔹 Marketing Automation Platform: My implementation of AI-driven messaging and data enrichment strategies has saved hundreds of hours and notably increased conversion rates. Client-Centric Approach: 🌟 Problem Solving: I dive deep into each project's unique challenges, ensuring solutions are tailor-made to address specific needs. 🌟 Value Delivery: Each solution is designed to maximize ROI, whether through enhanced efficiency, increased security, or scalable growth. 🌟 Technology Expertise: As an official Ruby on Rails contributor, I bring authoritative knowledge and innovative practices to every project. Technical Skills: 🛠 Languages: Ruby, JavaScript, SQL, Elixir, Python, HTML/CSS 🛠 Frameworks/Tools: Ruby on Rails, React, Docker, GitHub Actions, RSpec 🛠 Databases: PostgreSQL, MariaDB, Redis, AirTable
    vsuc_fltilesrefresh_TrophyIcon Ruby
    RubyMotion
    Airtable
    RubyMine
    IT Consultation
    Ruby on Rails Stack
    Database Integration
    API Integration
    Ruby on Rails
    JSON API
    RESTful API
    API Development
    PostgreSQL
    JavaScript
  • $60 hourly
    I am Ember.js & Ruby on Rails Developer. One of the most important principle for me is KISS Principle. (The KISS principle states that most systems work best if they are kept simple rather than made complicated; therefore simplicity should be a key goal in design and unnecessary complexity should be avoided - Wikipedia) I am focusing on patterns and best possible solutions. I am punctual and always doing a professional job. While remotely working, professionalism (punctuality, reliability, and commitment) is needed for good communication and the best results. In my opinion, every good cooperation is when two parties are satisfied.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    JavaScript
    Ember.js
    jQuery
    HTML5
    CSS 3
    Ruby on Rails
  • $40 hourly
    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
    vsuc_fltilesrefresh_TrophyIcon Ruby
    HAML
    Ruby on Rails
    Bootstrap
    MySQL
    jQuery
    RSpec
    Vuex
    Vue.js
    Git
    Graphic Design
    UX & UI
    JavaScript
    HTML
    CSS
  • $40 hourly
    Hello!🙋‍♂‍ I am a senior full stack & blockchain developer with 8+ years of experience supporting High Quality work and the fastest support. Specialize in creating websites and minting NFTs, which are customized and fully enriched for ultimate digital experience. I create highly user-friendly static and dynamic types of websites and products without compromising the overall look and feel of the website. Why choose me? ★ 8+ Years of experience ★ 100% satisfaction assured ★ Technological Excellence across platforms ★ Thoughtful and futuristic software and web development ★ 100% trusted team ★ Long term relationships!! ★ Enough work experience in working with Price Comparison website , Buy & Sell currency Exchange website, Doctor / Service Provider Website, E-Book Website, Property Website, Hotel, Restaurant Booking and Shopping website ... Professional Skills: ✔️Fullstack ✓ frontend: HTML, CSS, Javascript, Bootstrap, Sass, React/Redux, Typescript, Vue, Angular ✓ backend: Nodejs, PHP, Python, C# ✓ Database: MongoDB, MySQL, PostgreSQL ✓ framework: WordPress/WooCommerce, Laravel, MERN, MEAN, Django ✓ Design: Logo, Web Responsive , Mockup, Brochure ✓ Github, Heroku ✓ Software Analysis, UI/UX Design, Graphic Design ✓ AWS, Google cloud ✔️Blockchain: ✓ Smart contract, Ethereum, Solana, Cryptocurrency, Secure wallet ✓ ERC-721, ERC-20, BEP-721, BEP-20 ✓ Tokenomics management, ICO, IDO ✓ DeFi (Pancakeswap, Uniswap, Staking, Liuiqidy Pools) ✓ NFT marketplace (Opensea integration, Auction, Lottery, Lazy Mint) I give my 100% focus on even small details of the project and make it perfect. My goal is to do a project successfully by keeping high quality of work at a fair price. I am elementary and flexible to work. Best Regards!
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Ecommerce
    Solidify
    RESTful API
    Search Engine Optimization
    C#
    Java
    Python
    PHP
    MySQL
    MongoDB
    Angular
    React
    Vue.js
    Node.js
  • $40 hourly
    Hello!🙋‍♂‍ I am a senior full stack & blockchain developer with 8+ years of experience supporting High Quality work and the fastest support. Specialize in creating websites and minting NFTs, which are customized and fully enriched for ultimate digital experience. I create highly user-friendly static and dynamic types of websites and products without compromising the overall look and feel of the website. Why choose me? ★ 8+ Years of experience ★ 100% satisfaction assured ★ Technological Excellence across platforms ★ Thoughtful and futuristic software and web development ★ 100% trusted team ★ Long term relationships!! ★ Enough work experience in working with Price Comparison website , Buy & Sell currency Exchange website, Doctor / Service Provider Website, E-Book Website, Property Website, Hotel, Restaurant Booking and Shopping website ... Professional Skills: ✔️Fullstack ✓ frontend: HTML, CSS, Javascript, Bootstrap, Sass, React/Redux, Typescript, Vue, Angular ✓ backend: Nodejs, PHP, Python, C# ✓ Database: MongoDB, MySQL, PostgreSQL ✓ framework: WordPress/WooCommerce, Laravel, MERN, MEAN, Django ✓ Design: Logo, Web Responsive , Mockup, Brochure ✓ Github, Heroku ✓ Software Analysis, UI/UX Design, Graphic Design ✓ AWS, Google cloud ✔️Blockchain: ✓ Smart contract, Ethereum, Solana, Cryptocurrency, Secure wallet ✓ ERC-721, ERC-20, BEP-721, BEP-20 ✓ Tokenomics management, ICO, IDO ✓ DeFi (Pancakeswap, Uniswap, Staking, Liuiqidy Pools) ✓ NFT marketplace (Opensea integration, Auction, Lottery, Lazy Mint) I give my 100% focus on even small details of the project and make it perfect. My goal is to do a project successfully by keeping high quality of work at a fair price. I am elementary and flexible to work. Best Regards!
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Ecommerce
    Smart Contract
    Elasticsearch
    Search Engine Optimization
    Java
    C#
    PHP
    Python
    Vue.js
    Node.js
    React
    Angular
    MongoDB
    MySQL
  • $40 hourly
    Hello!🙋‍♂‍ I am a senior full stack & blockchain developer with 8+ years of experience supporting High Quality work and the fastest support. Specialize in creating websites and minting NFTs, which are customized and fully enriched for ultimate digital experience. I create highly user-friendly static and dynamic types of web and mobile applications and products without compromising the overall look and feel of the website. Why choose me? ★ 8+ Years of experience ★ 100% satisfaction assured ★ Technological Excellence across platforms ★ Thoughtful and futuristic software and web development ★ 100% trusted team ★ Long term relationships!! ★ Enough work experience in working with Price Comparison website , Buy & Sell currency Exchange website, Doctor / Service Provider Website, E-Book Website, Property Website, Hotel, Restaurant Booking and Shopping website ... Professional Skills: ✔️Fullstack ✓ frontend: HTML, CSS, Javascript, Bootstrap, Sass, React/Redux, Typescript, Vue, Angular ✓ backend: Nodejs, PHP, Python, C# ✓ Database: MongoDB, MySQL, PostgreSQL ✓ framework: WordPress/WooCommerce, Laravel, MERN, MEAN, Django ✓ Design: Logo, Web Responsive , Mockup, Brochure ✓ Github, Heroku ✓ Software Analysis, UI/UX Design, Graphic Design ✓ AWS, Google cloud ✔️Blockchain: ✓ Smart contract, Ethereum, Solana, Cryptocurrency, Secure wallet ✓ ERC-721, ERC-20, BEP-721, BEP-20 ✓ Tokenomics management, ICO, IDO ✓ DeFi (Pancakeswap, Uniswap, Staking, Liuiqidy Pools) ✓ NFT marketplace (Opensea integration, Auction, Lottery, Lazy Mint) I give my 100% focus on even small details of the project and make it perfect. My goal is to do a project successfully by keeping high quality of work at a fair price. I am elementary and flexible to work. Best Regards!
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Ecommerce
    Smart Contract
    Zapier
    RESTful API
    Java
    C#
    Python
    PHP
    MySQL
    Angular
    Vue.js
    Node.js
    React
    MongoDB
  • $40 hourly
    Hello!🙋‍♂‍ I am a senior full stack & blockchain developer with 8+ years of experience supporting High Quality work and the fastest support. Specialize in creating websites and minting NFTs, which are customized and fully enriched for ultimate digital experience. I create highly user-friendly static and dynamic types of web and mobile applications and products without compromising the overall look and feel of the website. Why choose me? ★ 8+ Years of experience ★ 100% satisfaction assured ★ Technological Excellence across platforms ★ Thoughtful and futuristic software and web development ★ 100% trusted team ★ Long term relationships!! ★ Enough work experience in working with Price Comparison website , Buy & Sell currency Exchange website, Doctor / Service Provider Website, E-Book Website, Property Website, Hotel, Restaurant Booking and Shopping website ... Professional Skills: ✔️Fullstack ✓ frontend: HTML, CSS, Javascript, Bootstrap, Sass, React/Redux, Typescript, Vue, Angular ✓ backend: Nodejs, PHP, Python, C# ✓ Database: MongoDB, MySQL, PostgreSQL ✓ framework: WordPress/WooCommerce, Laravel, MERN, MEAN, Django ✓ Design: Logo, Web Responsive , Mockup, Brochure ✓ Github, Heroku ✓ Software Analysis, UI/UX Design, Graphic Design ✓ AWS, Google cloud ✔️Blockchain: ✓ Smart contract, Ethereum, Solana, Cryptocurrency, Secure wallet ✓ ERC-721, ERC-20, BEP-721, BEP-20 ✓ Tokenomics management, ICO, IDO ✓ DeFi (Pancakeswap, Uniswap, Staking, Liuiqidy Pools) ✓ NFT marketplace (Opensea integration, Auction, Lottery, Lazy Mint) I give my 100% focus on even small details of the project and make it perfect. My goal is to do a project successfully by keeping high quality of work at a fair price. I am elementary and flexible to work. Best Regards!
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Automation
    Ecommerce
    RESTful API
    C#
    Java
    PHP
    Python
    React
    PostgreSQL
    Node.js
    Angular
    MySQL
    MongoDB
    Vue.js
  • $60 hourly
    I'm a software developer with experience in infrastructure software as well as web development. I can troubleshoot and debug complex software problems, fix bugs and implement new features. I prefer working with open source and have contributed to many upstream projects.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Golang
    Ansible
    Python Script
    Open Source
    React
    Software Development
    Software Integration
    Debian
    Linux
    Software Debugging
    Python
    PHP
    Cloud Computing
    JavaScript
  • $20 hourly
    I'm a software developer, I'm writing code mostly in JavaScript and Ruby. I'm fluent in English and have skills in: - JavaScript and React, - Ruby and Ruby on Rails, - Elm, - HTML and CSS, - Bash.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    Bash
    Elm
    CSS Framework
    HTML
    Ruby on Rails
    JavaScript
    React
    Git
  • $18 hourly
    Ruby on Rails developer with 2+ years of experience building and optimising high-quality web applications. Proficient in developing Spent Management systems, implementing Web Scraping solutions, and integrating Payment systems.Skilled in Ruby on Rails, RESTfull APIs, and process automation, with a proven track record of delivering scalable and user-centric projects. Passionate about creating innovative solutions that drive business success and enhance user experience
    vsuc_fltilesrefresh_TrophyIcon Ruby
    RSpec
    Linux
    Ruby on Rails
    PostgreSQL
    GraphQL
  • $25 hourly
    As an experienced Ruby on Rails engineer with 5 years in the industry, I am passionate about creating scalable and maintainable web applications. With a strong grasp of programming concepts and principles, I easily adapt to new technologies and tools. I take pride in writing clean, efficient code and enjoy collaborating to solve complex problems. Eager to embrace new challenges, I am keen to further advance my career in software development.
    vsuc_fltilesrefresh_TrophyIcon Ruby
    NoSQL Database
    CI/CD
    React
    Google Cloud Platform
    RabbitMQ
    PostgreSQL
    SQL
    API
    Kubernetes
    Docker
    Amazon Web Services
    Ruby on Rails
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