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Richard M.
$80/hr
100% Job Success
Available now
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Join the Dark Side! Use my Force Powers (coding!) to get your app or platform built to your specifications. I've built everything from mobile apps to globe-spanning enterprise systems. No Death Stars - sorry I don't know hardware! ;) Darth Vader was pleased with me, you will be too! I'm a Founder/Developer with multiple startups launched, based on 4 decades of international commercial experience in software development across 30 programming languages and frameworks, including React, NextJs, NodeJs, Angular, Python, Ruby on Rails & Javascript/Typescript, Django/DRF. I have first class team building and leadership experience, coupled with architect and design experience. I've built entire teams from nothing to 35 developers and companies from nothing to multi-million $ in turnover. My focus now is on building scalable cloud-based SaaS platforms. I am passionate about good UX, well written code, testing and documentation. Here are two examples: A mobile EdTech app that I built in 2016 was appraised by Oxford University - see my portfolio where you can read about it in The Guardian newspaper. In 2011 I built the entire UI for a cryptographic app. This app was reviewed by PCMag.com and rated EXCELLENT (4/5 stars) - "Its simple interface conceals high-tech encryption technology to keep your communications safe". I am flexible with my workings hours and happy to align them with any time zone. I am a native English speaker educated in England to MA level, so I would say that my communication skills are top class. I'm also an ex-teacher, so ideally suited to passing on knowledge to others; equally happy talking to non-technical audiences. I look forward to working with you. May The Force Be With You! ...yeah ok so I'm a little bit of a geek...it comes with the territory!
Richard M. has worked .
Petro T.
$49/hr
100% Job Success
$400K+ earned
Available now
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I'm a Top Rated 🏆 Shopify developer with over 9 years of commercial experience. As the owner of a Shopify development agency, we specialize in building and supporting successful Shopify businesses. Additionally, we offer development and design resources to other agencies on demand. My Shopify skills include: ✅ Theme Customization: Creating stunning, responsive themes 🎨 ✅ App Integration: Seamlessly adding and customizing apps 🔧 ✅ Backend Development: Optimizing backend functionalities 💻 ✅ Front-End Performance: Enhancing speed and user experience ⚡ I’m highly skilled in using Shopify's APIs, Liquid templating, and advanced functionalities to create tailored solutions that fit your needs perfectly. 🌟 Looking forward to helping your business shine! 🚀 Keywords: shopify, shopify plus, shopify theme customization, shopify app development, custom shopify themes, shopify API, shopify UX/UI design, shopify liquid, shopify payment gateways, ecommerce solutions, shopify speed optimization, shopify expert, shopify developer, custom shopify development, ecommerce website development, shopify store migration, shopify responsive design, shopify apps, React, shopify templates, javascript, html, css, web development, php, Ruby on Rails, API integration, pdp, shipping app, shopify design, conversion rates optimisation, redesign, web design, third-party app integration, woocommerce, ecommerce solutions
GoInteger
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GoInteger
$60K+
earned
$25/hr
$9K+ earned
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I'm an enthusiast software engineer. Strong in design and integration problem-solving skills. Expert in Ruby on Rails, Node.js, React.js with database analysis and design. Skilled in developing business plans, requirements specifications, user documentation and architectural systems research. Strong written and verbal communications.. Services Offered: - Backend server development using Ruby on Rails | Node JS. - Frontend development with React/Next JS. Completed Projects domains: - Healthcare - Fintech - Interior designs - Fitness industry - Ecommerce - Real estate - Automobile industry I take immense pride in delivering innovative solutions that exceed client expectations. I am committed to staying up-to-date with the latest advancements in technology, which allows me to offer cutting-edge and future-proof products and services.
$25/hr
$6K+ earned
Available now
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⚡ 𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗳𝗼𝗿 𝗮𝗻 𝗲𝘅𝗽𝗲𝗿𝘁 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱 𝗮 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗪𝗲𝗯 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻? If you need to launch a complex SaaS platform, execute a seamless API Integration, or architect a high-performance Web Application, you have found the right partner. With 10+ years of experience, I specialize in Full-Stack Development that drives business growth. I don't just write code; I provide end-to-end solutions using Elixir, Node.js, Ruby on Rails (ROR), and React. My goal is to deliver software that is secure, scalable, and easy to maintain. 🟣 𝗘𝗟𝗜𝗫𝗜𝗥 & 𝗡𝗢𝗗𝗘.𝗝𝗦 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 To handle high traffic and real-time users, you need a robust backend. I select the right technology for your specific Web Development needs: ๏ Elixir & Phoenix: Perfect for real-time dashboards and high-concurrency apps using Phoenix LiveView and Channels. ๏ Node.js (Express/Nest.js): Ideal for fast, event-driven architectures and server-side JavaScript execution. ๏ Ruby on Rails (ROR): The best choice for rapid MVP development and complex data modeling. 🔵 𝗥𝗘𝗔𝗖𝗧, 𝗡𝗘𝗫𝗧.𝗝𝗦 & 𝗙𝗥𝗢𝗡𝗧𝗘𝗡𝗗 𝗘𝗡𝗚𝗜𝗡𝗘𝗘𝗥𝗜𝗡𝗚 Your users deserve a flawless experience. I build responsive, SEO-friendly interfaces using modern JavaScript frameworks: ๏ React & Next.js: I create lightning-fast, server-side rendered Web Applications that rank high on Google. ๏ Modern UI/UX: utilizing TypeScript, Tailwind CSS, and Redux to ensure your frontend is bug-free and beautiful. 🔴 𝗔𝗜 𝗔𝗚𝗘𝗡𝗧 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 & 𝗣𝗬𝗧𝗛𝗢𝗡 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗜𝗢𝗡 Integrate intelligence into your business with my Python and AI Agent Development services: ๏ AI Integration: Connecting OpenAI or LLMs to your app for intelligent chatbots and automation. ๏ Data Processing: Using Python (Django/Flask) to handle complex data pipelines. 🔌 𝗔𝗣𝗜 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡 & 𝗗𝗔𝗧𝗔𝗕𝗔𝗦𝗘 𝗔𝗥𝗖𝗛𝗜𝗧𝗘𝗖𝗧𝗨𝗥𝗘 A successful app relies on data. I ensure your systems communicate perfectly through: ๏ API Development: Designing secure RESTful Architecture and GraphQL endpoints. ๏ Database Architecture: Optimizing PostgreSQL, MySQL, and MongoDB for speed and reliability. ๏ Third-Party Integration: Seamless connections with Stripe, AWS, and external SaaS tools. ☁️ 𝗔𝗠𝗔𝗭𝗢𝗡 𝗪𝗘𝗕 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 (𝗔𝗪𝗦) & 𝗗𝗘𝗣𝗟𝗢𝗬𝗠𝗘𝗡𝗧 I handle the entire DevOps lifecycle to ensure your project is production-ready: ๏ Cloud Infrastructure: Expert management of Amazon Web Services (EC2, Lambda, S3, RDS). ๏ CI/CD Pipelines: Automating updates using Docker and Kubernetes to keep your app running smoothly. ✅ 𝗠𝗬 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 I provide comprehensive Full-Stack Development services for: ๏ Custom Web Application Development (SaaS, CRM, ERP) ๏ API Integration & Microservices ๏ Real-Time Chat & Streaming Apps (Elixir/Phoenix) ๏ AI Agent Development & LLM Fine-tuning ๏ E-commerce & Fintech Platforms 🤝 𝗥𝗘𝗔𝗗𝗬 𝗧𝗢 𝗛𝗜𝗥𝗘? Don't gamble on your code. Hire a Full Stack Developer with a proven track record. Click the "Invite to Job" button, and let's discuss how I can help you build the perfect solution with React, Node.js, or Python.
$25/hr
$50K+ earned
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Hello, I am full stack software engineer with 4+ years of industrial experience in building and maintaining Web Application, Mobile Applications and backend services with clients from all around the globe using modern languages and frameworks .I pursued my BS Computer Science from University of Central Punjab. I have extensive knowledge of third party integration, CRM development / integrations, Database schema and design. Core frameworks and technologies of my choice are mentioned below. • Back-end: Elixir/ Nest.js, Django, Ruby on Rail, Laravel, Express, Fastify, Solidity • Front-end: React.js, Vue.js, Electron.js, Jquery, web3.js • Cloud Services: AWS, Microsoft Azure, IBM Cloud (Kyndryl), Heroku • Databases: Postgres, MSSQL, MYSQL, Firebase, MongoDB, DynamoDB • Languages: JavaScript/Typescript, PHP, Python, Ruby, C++ • I also Have worked on the following solutions: • Share-tribe (integration API, Marketplace, SDKs, FTW templates), • Sugar CRM/Suit CRM. • IBM Watson Assistant I am available for any type of project, whether it is long-term or short-term. I am always excited about using the new technologies /frameworks and providing state of the solutions to my clients. If you have any question please reach out to me, looking forward t wok with you!
Gumansinh G.
$45/hr
100% Job Success
$200K+ earned
Available now
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🎯 𝗙𝗿𝗮𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝗖𝗧𝗢 & 𝗔𝗜 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 · 𝟭𝟱+ 𝗬𝗲𝗮𝗿𝘀 · 𝟵,𝟭𝟬𝟬+ 𝗨𝗽𝘄𝗼𝗿𝗸 𝗛𝗼𝘂𝗿𝘀 · 𝟭𝟬𝟬% 𝗝𝗦𝗦. I architect and ship AI products. Java, Python, LLM and RAG systems, AI agents, full-stack, and a senior team that builds 100% of your spec. I am 𝐆𝐮𝐦𝐚𝐧𝐬𝐢𝐧𝐡. For 15+ years I have built software, led delivery, and sat on the buying side of IT services, and today I work as a Fractional CTO and AI Architect for founders who are betting their company on getting the technology right. Here is the deal I make with every client. You stay in the driver's seat. I run the machine. I sit with you through onboarding, turn what is in your head into a written plan and a real architecture, and then a senior engineering team I lead builds it, ten out of ten, against that exact plan. Nothing is called done until it matches what we agreed. I have closed twelve contracts on Upwork this way. Every one is five-star. 100% Job Success. Zero exceptions in over four years. 🔶 𝗪𝗛𝗔𝗧 𝗜 𝗔𝗖𝗧𝗨𝗔𝗟𝗟𝗬 𝗗𝗢 I am most useful when there is real AI in the build and a business riding on it. ✵ AI architecture and engineering : LLM applications on GPT-4o and Claude, retrieval-augmented generation on pgvector, Pinecone, and Qdrant, AI agents and multi-agent orchestration with LangGraph and the Model Context Protocol, evaluation harnesses so you can measure accuracy instead of hoping, and guardrails against prompt injection and hallucination inside a regulated boundary. I have shipped a clinical compliance agent that reads policy and unstructured notes, returns structured answers, and logs every decision for audit. Production AI, with the deterministic validators that keep a model honest. Not a demo. ✵ Java and Python backends : Enterprise Java and Spring Boot for the system of record. Python and FastAPI for the model, data, and orchestration layer. Microservices, event-driven design, REST and gRPC, Postgres, Kafka, Redis, and AWS underneath it all. This is the plumbing that turns an AI prototype into something a real company can run. ✵ Fractional CTO leadership : I plug in as the technology executive your stage cannot yet hire full-time. Architecture decisions, the roadmap, build versus buy, hiring the right engineers, code-quality bars, vendor and agency oversight, and technical due diligence for your next raise. I have done this for Series A and Series B founders and co-presented the technical story in their investor rooms. ✵ Full-stack and ecommerce : where it serves the product. React and Next.js front ends, Ruby on Rails SaaS, Shopify Plus and headless storefronts, Salesforce and CRM integration. I do not lead with this, but when an AI product needs a real interface and a real checkout, my team builds that too. 🔶 𝗛𝗢𝗪 𝗪𝗘 𝗪𝗢𝗥𝗞 𝗧𝗢𝗚𝗘𝗧𝗛𝗘𝗥 You and I own the relationship. I run your onboarding, capture every requirement in writing, set the architecture, and stay your single point of contact start to finish. Behind me is a hand-picked senior team, ten-plus years each on their stack, who write the code under my direction. This is not staff augmentation and it is not an offshore center handed your repo. I am in the code with them, reviewing pull requests and architecture, which is the direction most contractors are missing and the reason you stop paying for rewrites. The promise is simple and I put it in writing on day one. We agree what done looks like before anyone writes a line, against acceptance criteria we can both measure. We build to that list. Everything ships to a staging URL for your sign-off before it counts. You get a written update on the days we work. Nothing is marked complete until it matches the spec, exactly. That is what I mean by ten out of ten on your requirements. 🔶 𝗪𝗛𝗬 𝗙𝗢𝗨𝗡𝗗𝗘𝗥𝗦 𝗧𝗥𝗨𝗦𝗧 𝗠𝗘 "Our client treated him as his own CTO, not an external employee. He built an AI-powered roadmap that reduced manual effort and gave them a real competitive advantage." (Bharat, Founder, Fourfold Tech) "Outstanding professionalism, deep expertise, delivering high-quality results on time." (Healthcare SaaS, 4,409 hrs) "Exceptional knowledge and dedication, consistently delivering results as requested." (Healthcare SaaS, 3,848 hrs) 🔶 𝗕𝗘𝗦𝗧 𝗙𝗜𝗧 AI and SaaS founders who need a Fractional CTO without giving up equity. Teams putting real AI into production under HIPAA, SOC2, or fintech rules. Founders who need an MVP architected right the first time. Operators modernizing a Java or legacy system to clean services on AWS. Engagements from $15K to $500K-plus. Tell me what you have now and what you need next, in a couple of sentences. I will come back with a plan, a timeline, and a milestone or retainer proposal within two hours on business days. 𝐆𝐮𝐦𝐚𝐧𝐬𝐢𝐧𝐡.
$35/hr
$3K+ earned
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Software Engineer and Founder of LeySoft LLC with 4+ years of experience designing, developing, and delivering high-quality software solutions for clients across diverse industries. Passionate about building scalable applications, leading projects from concept to deployment, and mentoring junior developers to help them achieve meaningful growth and measurable results. Core Expertise: - Front-End: JavaScript, React.js, React Native, Redux, HTML5, CSS3, Tailwind CSS - Back-End: Ruby, Ruby on Rails, MySQL - Tools & Methodologies: Git, GitHub, Heroku, Netlify, Mobile & Responsive Development, RSpec, Test-Driven Development (TDD), Chrome DevTools - Languages: French (Native), English (Professional Proficiency) I value clear communication, collaboration, and transparency throughout every stage of a project. Building strong relationships and staying aligned with clients and teams are just as important to me as delivering exceptional technical solutions.
Stanley S. has worked .
$30/hr
100% Job Success
$4K+ earned
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More than 10 years of experience and Expert Ruby Developer Here. Developed various web projects in Ruby. Followed best practices to develop Secure, Scalable, and Reliable Web Applications. Hands-on Skill set: ✅ Extensive knowledge of web application architecture. ✅ Docker, Docker Compose, and Kubernetes ✅ AWS Lambda, EC2, ECS, S3, RDMS, ✅ DigitalOcean and Heroku Deployment. ✅ Comprehensive knowledge of Web and Mobile backend APIs, particularly Sinatra, GrapeAPI and Rails framework. ✅ Authentication endpoints using Devise, Devise-JWT, OmniAuth, JWT Token ✅ Databases PostgreSQL, MySQL, MongoDB ✅ Designing REST APIs for both web and mobile applications. ✅ Sidekiq, Delayed Job for long-running background jobs. ✅ RabbitMQ for message broking. ✅ Redis for in-memory caching, database caching, and message broking ✅ Designing scalable backends using microservices architecture ✅ NGINX, unicorn, Apache ✅ Reactjs, HTML, CSS, Bootstrap, ERB, HAML, JQuery I look forward to the opportunity to contribute to your projects. Prakash
Prakash A. has worked .
VIKAS J.
$35/hr
100% Job Success
$20K+ earned
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Greetings, In last 10 years or so, I have designed/developed many websites. I have done around 200+ project both on and off freelancing platforms. My objective is to design and develop world-class Websites and Apps for my valuable clients as well as to meet the exact requirements of clients. I wish to provide an outstanding experience to work. Web Development - PHP - Ghost CMS,Wordpress, Magento, Shopify, Laravel, Joomla, Drupal - Laravel, Symphony, Zend, Yii - HTML5, CSS3, Javascript, JQuery,BootStrap - MySQL - Database Development VBA Mapping Workflow Creating Thanks for your consideration. - Vikas
Haris S.
$25/hr
95% Job Success
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I am an accomplished Software Engineer with nearly four years of hands-on experience in the development, deployment, and dockerization of full-stack applications, along with proficient maintenance of existing systems. My primary expertise lies in Elixir/Phoenix, and I have successfully contributed to projects such as Linkly, KiwiSkips, and Glass. Additionally, I bring valuable experience in React, Node.js/Express, and RoR. My Elixir projects showcase my ability to deliver high-quality solutions. Notable contributions include Lumachain.io and Chain API, demonstrating my dedication to creating robust and scalable applications. On the RoR front, I have made impactful contributions to projects like khapto.com, saplinghr.com, and lumachain.io, showcasing versatility across different technology stacks. As a dedicated hobbyist app developer, I have honed my skills in Postgres, MySQL, HTML5, CSS, and Javascript. I am committed to continuous learning, consistently adapting to new stacks to enrich my expertise and broaden my experience as a software engineer. In addition to my proficiency in application development, I possess experience in Data Visualization and Data Analysis, leveraging technologies such as Python and R. My tenure at the Australian Data Science Education Institute involved the development of the backend framework for a Data Science Visualization Project tailored for children, highlighting my ability to contribute to innovative and impactful initiatives. I am enthusiastic about bringing my technical acumen, adaptability, and passion for continuous learning to contribute effectively to your team. I am confident that my diverse skill set and experience make me a valuable candidate for your organization.