Hire Top Freelance Ruby DevelopersFind top freelance Ruby developers quickly and easily on Codementor. Work with our vetted developers who have the proven skills and experience to get the job done. Get help with projects by-the-hour or long-term. Hire a trusted Ruby freelancer on Codementor today.
I’m a senior mobile + backend engineer with 20+ years in software (PHP since 2002; professional since 2005) and 10+ years building mobile apps. I help teams ship and stabilize real products—especially apps that are “almost done” but stuck on crashes, performance, flaky networking, or release blockers. What I can help you with (fast, practical): • iOS (Swift, SwiftUI, UIKit): crash fixes, performance/memory, concurrency issues, architecture cleanup • Flutter (iOS/Android/macOS): reliability, state consistency, networking/retry behavior, release readiness • Backend stability (PHP/Laravel or custom, Python/Django, Rails): idempotency, queues, DB performance, webhook safety • Firebase + mobile reliability: Auth/Firestore rules, Cloud Functions patterns, analytics/instrumentation • Monetization + shipping: RevenueCat/IAP reliability, App Store Connect/Play Console, CI/CD, rejection handling Recent work includes taking a messy iOS codebase (CakeClub) to production-ready with a Firebase Cloud Functions v2 backend, stronger security patterns, CI/release automation, and RevenueCat integration; and delivering major cross-platform Flutter work (BillBlaster) including design refinements, admin tooling, and push notification features. If you come with logs/screenshots (Crashlytics traces, network errors, repro steps), I’ll give you a clear diagnosis and a prioritized fix plan—and if it makes sense, I can execute the fixes as a focused sprint.
I dwell in the midst of complex problems. I make my bed with solutions to problem. Have built solutions ranging from complex stocks management system with realtime stock data synchronisation to web applications that manage and analyse user data in their millions. In summary, I love seeing problems solved. I am also a debugger tool (kind of) and a teacher. I spot and easily detect bugs lurking in your code within minutes. I specialised in Javascript, but you would find me working with ruby, python, Go and even dart. Would love to help out with your project and help you find those solutions that have proven difficult, together we can bring walls down.
I am an experienced software developer/researcher with over 12 years of experience (3 years in academia and then 9 years in the industry). I have worked in a diverse set of companies ranging from early stage startups to big internet companies. I believe I have a good knack of understanding a problem and coming up with a quick solution for it.
I'm a chilean developer with years of experience in web technologies.
An accomplished and high-motivated IT professional with 6+ years experience of IT leadership involved in web development, application development and System & Solution Architecture. My main competency is in building rich client-side applications, on both sides back-end and front-end. I strongly believe in TDD as the only way to build a bullet-proof code that makes everyone happy and it allows me to rest at night. Reaching 100% test coverage is my passion. **SKILLS:** ✅ Specialities: Computer Engineering, Software Engineer, Web Development, Mobile development, Open Source ✅ Languages:Ruby(6 years), Javascript(4 years), Nodejs(1 year), Elixir(1 year) ✅ Backend Frameworks: Ruby On Rails(6 years), Phoenix(1 year) ✅ Frontend Frameworks: AngularJS(4 years), ReactJS(2 years) ✅ Relational database:Postgresql(6 years), MySQL(6 years) ✅ NoSql databases:Elasticsearch(4 years), Redis(3 years), MongoDB(3 years) ✅ Other technologies:Rabbitmq, Redux, Universal rendering, HTML, CSS, SCSS, BEM, Docker, AWS, Google Cloud Platform, Webpack, Git, Progressive web apps **LINKS:** https://github.com/mpospelov https://stackoverflow.com/users/2460416/mpospelov https://codementor.io/mpospelov https://www.upwork.com/o/profiles/users/_~0182077648cc549f21/ https://www.toptal.com/resume/mikhail-pospelov
Senior software engineer with 5+ years of experience in backend web technologies including Ruby on Rails, Python, Go, and MySQL. Currently at Tesla, previously EasyPost. Bachelor's in Computer Science. Main strengths include architecting applications and backend API development, have also worked in fullstack roles. The best part of software engineering is that you never stop learning new things.
I love to solve problems
4+ years experienced & result oriented software engineer skilled in both enterprise and SaaS software product development. Proficient at implementing core backend and frontend development tasks including 3rd party API integrations, REST and GraphQL API design, and development. Adept at employing the Agile methodology of software development to deliver high-quality products. Possess a passion to learn and work on the latest technologies. Provides leadership, training & feedback to ensure that teams perform to the best of their abilities & deliver consistently.
I have 8 years of professional experience with software development mostly with Ruby on Rails, React and AWS. In my latest role as a staff software engineer I had the responsibility of keeping our platform performant and resilient while guiding a cross-funcional team of software engineers, designers, and product members to achieve company wide goals.
As a senior Front-End Software Engineer with over 6 years of experience, I’ve had the opportunity to lead teams in migrating and modernizing critical business applications. My strength lies in making high performing, extensible solutions using modern tools like React, Next.JS, TypeScript, and others. Combining a background in Physics, a solid technical foundation, & best practices, I excel at tackling challenges head-on. Enjoy creating great products with great teams.
We'll share your request with freelancers with relevant Ruby skills and expertise.
Use our messaging feature to instantly chat with freelance Ruby developers around the world.
Choose the best freelance Ruby developer that meets your needs.
The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Ruby project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Ruby request on Codementor, check out our article.
We don’t charge anything when you post a freelance hiring request for Ruby developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.
We do a comprehensive technical and communications screen of all Ruby developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Ruby developers’ user satisfaction rates.
For more answers to frequently asked questions, see here.