Hire senior Ruby on Rails developers

With 10+ years of Ruby on Rails expertise, I don’t just build applications—I engineer scalable, maintainable systems that solve real business problems. My journey began as a curious developer tinkering with Rails, and over the years, I’ve evolved into a problem-solver who bridges technical complexity with business value. One of my proudest achievements was optimizing multi-tenant database migrations by 75%, introducing rigorous security checks, automated code analysis, and comprehensive test coverage—ensuring reliability at scale. I’ve also turbocharged report generation by refining ActiveRecord queries and leveraging PostgreSQL optimizations, slashing load times while maintaining data integrity. Beyond coding, I thrive on efficiency and reusability. When integrating third-party APIs, I don’t just glue them together—I built my own Ruby gem to encapsulate logic, making future integrations faster and cleaner. Staying ahead of the curve is second nature: I run a weekly tech newsletter to keep my team (and myself) updated on Rails, Hotwire, and PostgreSQL advancements, ensuring we’re always leveraging the best tools. What truly sets me apart is my blend of deep technical skill and strategic thinking. I don’t just write code—I architect solutions that are secure, performant, and maintainable, while mentoring teams to raise the bar collectively. If you need a developer who ships high-quality software and elevates those around them, let’s talk. 🚀

I am Kirui Elias, a Rails Software Engineer with expertise in Ruby on Rails, Laravel, Python, Hotwire, React, and Tailwind CSS. I have a deep understanding of the Rails framework and a strong command of the Ruby language. With vast experience, I have built software products following best practices like DRY, CI/CD, and testing. I have also developed custom modules, including Stripe & MPESA payment integration & other API integrations. I am skilled in deploying applications using AWS, Digital Ocean, Heroku, Netlify, Vercel, and others. I am seeking a role where I can leverage my skills to bring value and grow further. Available for full-time positions.

Hi, I'm a Ruby on Rails Developer with over 7 years of experience. Please take a look at my resume (Google Drive link). https://drive.google.com/file/d/1zvakiEWg1rYuPKq1Rq_KtC5f63WMYOXo Let's discuss my experience and your project in detail. Best, Ammar

I love solving real world problems and Rails is my favourite tool to do so! In my 10+ years of experience I've gone through anything from a brand new greenfield projects, to legacy Rails 3 monoliths. You're looking for a person who can solve the scalability issues of your web app? You found the right person! I can take it up from both the dev and ops perspective.

I'm a full stack developer with a strong focus on Ruby On Rails development. Technologies I work with on a regular basis: Ruby On Rails, MySQL, PostgreSQL, Redis, ElasticSearch, Sass, Hotwire, Bootstrap, Sidekiq, Capistrano Technologies I've worked with professionally: Go, Swift, Python, PHP, Less, ReactJS, VueJS, TailwindCSS I also have hands-on experience deploying applications to bare-metal configurations. Setup is mostly done via Ansible or manually over SSH. Projects I've worked on include: - Online community platforms - E-commerce SaaS - Business applications for real estate companies - City marketing platforms

👋 I’m a Laravel developer who loves building clean, scalable SaaS platforms and APIs. 🚀 I’ve led projects like multi-tenant payroll and modular LMS systems using TDD & DevOps. 🧠 I contribute to Laravel & Inertia.js and enjoy automating workflows with AI tools. 💡 Passionate about solving complex problems with elegant code and working async with remote teams!

Hi! My journey in software started during university, I have a bachelor's degree in Software Engineering and that’s where I had my first contact with Ruby, back when Rails was on version 3, during that time I co-founded a junior enterprise with some classmates. The idea was to apply our learnings building small systems for local businesses, using Rails, PostgreSQL, Heroku, and RSpec. And from there I never stopped learning, for the past 8 years I've worked in so many different projects for big companies like GoDaddy (U.S.A.) and Trainline (EU) and I'm sure I'll have many other challenges to overcome.

With 15+ years in software development, I specialize in crafting scalable, high-performance web applications using Ruby on Rails, Hotwire, and Kamal. My expertise extends beyond development. I connect developers, leadership, DevOps, and security, ensuring seamless collaboration, robust architectures, and optimized performance. Over the years, I’ve worn many hats, from Tech Lead Software Engineer and Senior Staff Engineer to Management Consultant and Lecturer at HTW Berlin. These roles have shaped my ability to build strong engineering teams, mentor developers, and drive innovation while maintaining a hands-on approach to solving technical challenges. 💡 What sets me apart? Full-Stack Expertise: Rails, Hotwire (Turbo & Stimulus), PostgreSQL, and Elasticsearch Cloud & DevOps: Kamal, Docker, Terraform, AWS, and zero-downtime deployments Performance & Security: Scaling applications, optimizing databases, and securing web apps Leadership & Mentorship: Guiding engineering teams and fostering a culture of innovation I thrive on solving complex challenges, optimizing workflows, and building future-proof applications. Whether leading teams, consulting on architecture, or automating cloud deployments, I’m driven by a passion for efficiency, innovation, and delivering high-quality software solutions. Let’s connect and build something exceptional! 🚀

Founder and developer of paperless-home.com, a hosting service for the document archive paperless-ngx. Ruby on Rails 7 with Turbo/Hotwire. Created a cross-platform GUI app in pure ruby (yes, that's insane, but possible). gitlab: free-droid/free-droid Rebuild that same app from scratch in go. Github: amo13/Anarchy-Droid Linux-wizard with a long time passion for devops Work experience as a tester. Conceptualized and implemented an e2e testing strategy for system maintenance tasks of a server application.

Seasoned Rails consultant with 8+ years of experience. From MVPs to products with millions of users. Self-driven and easy to manage. I can provide up to 6 hours of overlap with the US timezone and full overlap with EU/UK time zones. Remote: Global, OnSite: India/Middle East/Asia. Some Interesting Complex Problems Solved AI integrations using voice models, openAI, and random forests. Video/audio freeze detection: Used openCV to detect if a video is in a frozen state with more than 99% accuracy CoBrowsing: Created CoBrowsing feature for a customer service app that allows to take control of a customer's browser without using any plugins except this JS CoBrowsing widget code. Server management platform: An internal dashboard for a client that allows users to control thousands of servers and field devices scattered across the globe. It allows the users to execute scripts on those servers, configure, provision, web-based SSH, etc. Common Freelance Gigs Performance optimizations of Rails, PostgreSQL, and Sidekiq: Helped multiple clients to scale Rails Upgrades Legacy modernization: Helping legacy Rails applications to modernize the stack, including the front end. For example, Recently, I helped convert CoffeeScript/AngularJS 1.0 to JS/Vue. Third-party integrations. Skills: Ruby on Rails PostgreSQL React Stimulus TypeScript JavaScript GraphQL Server - Ruby GraphQL Client - Apollo CI/CD (CircleCI, Jenkins) Heroku