Recrutez senior freelance développeurs Ruby on Rails

Senior Full Stack Developer with 10+ years of experience delivering scalable, performant solutions across global enterprise and e-commerce platforms. I've led engineering efforts that directly improved business outcomes—cutting page load time by 96% for NinetyPercent.com, boosting form submission rates by 275% at Owens Corning, and reducing security vulnerabilities by 19.3% through large-scale refactoring. At Owens Corning via Toptal, I introduced a reusable geolocation service adopted by 9 datasets and built a multilingual translation engine that improved LATAM and Canadian outreach. My contributions consistently reduce costs, enhance UX, and modernize legacy systems with measurable results. Skilled in Ruby on Rails, React, Symfony, Postgres, Docker, Redis, and CI/CD pipelines, I thrive in remote, agile environments, leading teams with a balance of technical depth and collaborative mentorship.

Senior Software Developer with 10+ years of experience delivering robust full-stack software solutions. Extensive experience developing with Ruby, (Ruby on Rails, Sinatra), Python (Django, Flask, FastAPI), and Javascript. Proven track record architecting cloud-native applications, optimizing CI/CD pipelines, and orchestrating infrastructure. Deep understanding of testing software and continuous delivery systems. Adept at leading Agile teams and modernizing legacy systems to drive scalability, performance, and speed to market.

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Full Stack Software Engineer with over a decade of hands-on experience in full-stack development, specializing in Ruby on Rails. Proficient in managing end-to-end software solutions from backend to frontend and mobile applications, with a strong focus on scalable distributed systems including serverless architectures (AWS Lambda). As a Full Stack and Tech Lead at current small company Brightree, I work on different languages programming and tech stacks. My In-progress demos: https://github.com/nctruong/glassdoor Ruby on Rails GraphQL Elasticsearch NextJS https://github.com/nctruong/shopee NodeJS Kubernetes Microservices https://github.com/nctruong/smartnote NestJS & NextJS

I'm a full-stack developer with a strong foundation in React and Ruby on Rails, and a track record of building fast, reliable, and user-focused applications for startups. I've contributed to products across fintech, SaaS, e-commerce, and healthcare—adapting quickly, shipping often, and solving real-world problems with clean, scalable code. I thrive in fast-paced environments where collaboration, curiosity, and impact matter most.

I’m a senior full-stack Ruby on Rails developer with 8+ years shipping production-grade software — from bootstrapped MVPs to fully-fledged SaaS platforms. I thrive in startup environments where shipping fast, clean code is key, and where product thinking is just as important as engineering chops. Rails is my weapon of choice — API-first apps, Hotwire interactivity, background jobs, payments, and complex business logic? All handled. I build with intention, scalability, and UX in mind. Beyond code, I’ve co-founded multiple products, run lean experiments, managed integrations with payment gateways (M-Pesa, Stripe, Paystack, Circle), and built systems used by thousands in Kenya and beyond. I speak startup.

I am passionate in technology, troubleshooting, and problem-solving. I have a wide exposure in many computer science fields including Networking, Web Development, Statistics and Machine Learning. My career objective is to become a solution architect focused on open technologies. I strive to develop optimized solutions for customers' needs and progressively improve it as the rapid technology growth. Other interests are User Experience (UX), Artificial Inteligence (AI), and Security. I have software development experiences in the following programming languages: HTML, CSS, JavaScript (Node, Express, React), Python (script), PHP (Slim, Magento 2, WordPress), Ruby (Rails), MongoDB, MySQL. Beside technologies, I am interested in healthy lifestyle.

I am a Full-stack developer with 4+ years of experience building and maintaining web applications. Strong focus on Ruby on Rails, with a solid grasp of modern front-end tools, API integration, Automation, and deployment workflows. Technical Skills Programming Languages & Frameworks - Ruby: Ruby on Rails, Sinatra, Jekyll - JavaScript: StimulusJS, React.js, Next.js, Astro.js - Hotwire Native, Turbo Hotwire Frontend Technologies - HTML, CSS, SCSS, LESS - Bootstrap, TailwindCSS, Shadcn/Radix UI Databases & Caching - Elasticsearch, OpenSearch, PostgreSQL, Redis DevOps & Hosting - Heroku, Fly.io, Hatchbox, DigitalOcean, Vercel, Netlify Version Control & Collaboration Tools - Git, GitHub, GitLab, Bitbucket Project Management Tools - Basecamp, Trello Development Practices - Agile Methodology - TDD

Experienced Ruby on Rails developer with nearly 9 years of professional experience designing, building, and maintaining APIs, microservices, and secure transaction systems. Proven track record integrating with major payment providers and delivering clean, well-tested, maintainable code. Strong collaborator with a passion for problem-solving and improving fintech systems.

I’m a full-stack web developer with experience in JavaScript and Ruby. I have 15 years of experience working with projects in different industries, from digital campaigns to HR, e-commerce and SaaS products. In my current role I led the development of many modules of the Applications & Leasing system, with a strong dedication in delivering robust solutions that could be extended to support other use cases. Some of these modules include an application template builder, document template builder, lease renewal score and document signing. This experience helped me to expand my ability to connect the dots by understanding each department’s needs and how data flows through the different actors in the company.