Hire mid-level Ruby on Rails developers

Ruby on Rails. 5+ Years. Built and scaled web solutions with Ruby on Rails for a startup (team of 3). Tackled senior-level tasks: optimized legacy code, designed APIs under tight deadlines. Expanded into cloud infrastructure: deployed servers on AWS, Google Cloud, Digital Ocean, and Heroku. Fluent in English & Portuguese, conversational Spanish. As a Ruby on Rails developer with five years of experience, I thrive on turning ideas into seamless, user-focused web solutions. My journey kicked off with a curiosity about what powers the digital world—a spark that’s since grown into a deep passion for crafting reliable, impactful software. At a startup, I worked with a tight-knit team of three, diving into senior-level challenges head-on. From optimizing tangled legacy codebases to designing scalable APIs under tight deadlines, those high-stakes tasks sharpened my ability to adapt, innovate, and deliver, no matter the complexity. I’m more than a coder—I’m a problem solver who brings enthusiasm and precision to the table. A recent milestone I’m proud of? Expanding into cloud infrastructure. I’ve been spinning up servers on AWS, Google Cloud, Digital Ocean, and Heroku, pushing my skills beyond app development into architecting robust, high-performance environments. This rare mix of full-stack expertise and DevOps know-how lets me offer end-to-end solutions that stand out in today’s fast-paced tech landscape. What makes me unique? I pair a rock-solid Ruby on Rails foundation with an insatiable drive to learn and a talent for connecting the dots. Fluent in English and Portuguese, with conversational Spanish, I’m built to collaborate across diverse teams and cultures. I’m eager to join innovative companies where I can blend my skills with cutting-edge projects, grow alongside brilliant peers, and tackle challenges others might miss. Whether it’s unraveling backend puzzles or deploying cloud-native systems, I’m the developer who gets it done—and then pushes it further.

Hi, I’m Rahul – a backend developer with a strong foundation in Ruby on Rails and a growing expertise in Node.js. I specialize in building and optimizing LMS platforms, working with complex domains like courses, learning paths, event sessions, assessments, and analytics. With a strong focus on performance optimization, I’ve worked closely with developers and CSM teams to solve real-world product challenges efficiently. Currently, I’m expanding my skill set by diving into Node.js and modern JavaScript tooling. I’ve worked with npm and global package management, and I’m actively exploring parallel processing and scalability solutions for high-performance applications. My passion for learning doesn’t stop there—I’m also deeply invested in data structures, algorithms, and object-oriented design, constantly solving LeetCode problems to sharpen my problem-solving skills. Beyond web development, I’m interested in system design and have been working on a news aggregator project to improve my ability to architect scalable applications. Looking ahead, I’m exploring low-level programming languages to stay ahead in the ever-evolving tech landscape. I thrive on challenges, love optimizing systems for speed and efficiency, and am always eager to learn and grow. Whether it’s scaling backend systems, solving algorithmic problems, or transitioning into new technologies, I’m excited about building impactful solutions. Let’s connect and create something amazing!

Hi! I'm a Full-stack Software Developer with 5+ years of experience in a production environment. My strengths include fluency in JavaScript, Ruby, Ruby on Rails, and React. I have a strong understanding of core programming concepts and I can pick up new tools and practices quickly and efficiently. I am comfortable working in an Agile team through pair programming and remote work. My soft skills entail effective communication, project management, teamwork, and, most importantly, the ability to wear multiple hats. I enjoy playing chess, learning a language on Duolingo, and watching movies. My tech stack includes JavaScript, React, Redux, Ruby, and Ruby on Rails. I use tools and methods such as: GitHub, Heroku, Jira, TDD, Dev Tools, and mobile/responsive development.

Senior software engineer with over 10 years of experience as a remote freelancer. My educational background includes an MSc 2:1 in computer science and applied mathematics engineering from ENSEEIHT (Toulouse, France) in 2009. I then worked for 2 years as a frontend developer at a startup in London and transitioned to backend work in 2013. Specializing in web application development, I have undertaken projects for companies such as Carrefour, L'Oréal, Cocolis, Epicery, and Alerti. My work has encompassed backend development, data engineering, code and database performance improvement, e-commerce platform customization and logistics, payment system integration, API creation, crawlers, technical documentation, and testing. Passionate about data manipulation and rendering them to users and stakeholders in a more meaningful way, I am currently expanding my skills in AI/ML and neural networks through CNRS fidle formation to explore how I could apply and offer these services to my clients. Recent milestones and accomplishments include: Migrating the payment system from Adyen to Stripe for Epicery Migrating the frontend from Vue to Hotwire for Epicery Developing a geolocalized matching algorithm between carriers and packages for Cocolis Fields of expertise: E-commerce solutions with Solidus/Spree open-source framework Data processing and visualization with Business Intelligence tools for reporting Integration of payment system providers Integration of third-party APIs Database design and performance optimization Frontend performance optimization Crawling and scraping Technical audits Testing, documentation, CI/CD tools Experience with the following tools: Languages: Ruby, Typescript, JavaScript, Node.js, Ruby on Rails Platforms: AWS, Google Cloud Platform, Render, Heroku Frontend: React, Vue.js, Hotwire, Angular, HTML/CSS, Alpine.js, HTMX, Astro Payment providers: Stripe, Mangopay, Adyen, PayPal Data viz: Amazon QuickSight, Superset, Tableau Backend tools: Solidus open-source e-commerce solution, New Relic, Elasticsearch, PostgreSQL, Amazon S3, etc. CI/CD Tools: GitHub CI, CircleCI Fluent in French, English, and Spanish.

As an accomplished senior Full Stack developer with 9 years of mastery in Ruby on Rails and Single Page Application (SPA) development using React, Vue.

I believe my experience in a multitude of Ruby on Rails roles has made me an extremely adaptable developer who can hit the ground running, pickup new codebases quickly, and reduce drag while onboarding. My experience in these roles have given me exposure to different areas of development, like writing unit tests, building RESTful APIs, WCAG accessibility compliance, and more.This experience will allow me to bring valuable skills and knowledge from the outside to help any new company build out solutions. Finally, I am extremely passionate about my career, my skills in development, and learning new technologies and methodologies that will help me learn more and become a more skilled and valuable developer as time goes on, and that motivation will help me succeed in any new role that I will occupy. Overall, I am a very self determined team player who is passionate about delivering high quality code, growing his skills, and delivering effective solutions for all types of problems.

TLDR- I know Rails, let’s build together. I understand that the most important part of any project is getting it in front of users. I am the ultimate buy one get one free; a true full stack developer with years of experience working with Rails and React. Let’s leverage my skill set to get your idea from in your head to on the web. Skills Great knowledge of Ruby. Experienced Next/React user. Sidekiq expert. Domain Modeling. CSS (SCSS, StyleComponents, Tailwind, Bootstrap, Whatever is clever). API’s and Integrations are my jam. I am very familiar with the JavaScript ecosystem including modern React and the current rise of hypermedia on, over, or around the wire. From LiveView in Phoenix, to Hotwire and HTMX, I’ve hosted projects in each. Legacy Code I have experience working with large media organizations that managed many forms of media from digital to printed magazine. Magazine systems are archaic, and very brittle. I refactored America’s Test Kitchen’s subscription service, allowing for greater resilience and capture. I am currently working for an enterprise grade e-commerce platform. We leverage Rails (Sidekiq) and process ~100M jobs a day.

I have been writing rails programs since 2022 and I have been hooked to this framework ever since. Rails really brings out the creative in me what people online call the developer brain. The framework's full-stack experience is one I have really enjoyed especially when you integrate Hotwire 🔥. I used django before and had a good experience with it won't lie. I have also done so work with Gin with go-lang and React just for the frontend(that what it should be used for). I have done some game development in the past and computer vision work, it was an exciting time. Game dev is something I might go back. Okay, I don't spend all my time on development, I try my best to stay in shape, football (soccer) being my go to sport. I really like watching and playing the sport. I think If I wasn't a developer I would have been playing football professional 😎. I have gotten into the habit of watching the UFC and motorsports, F1 to be specific and tennis, man I wish I knew how good this game was.

I'm Veteran Full-Stack Ruby on Rails Developer with ReactJS expertise. Proficient in Hotwire, Turbo, Stimulus, JavaScript, AWS, Github, Heroku, and various other technologies. Skilled in self-management for independent projects and a collaborative team player. I have worked in different domains like healthcare, legal, security, construction, social media and others. I'm passionate about coding, especially in Ruby with the magic of Rails making things smooth sailing. I've built plenty of projects, and now I'm excited about combining Ruby on Rails with AI. I'm skilled with Git, RSpec, and handling databases. I also know my way around frontend tech like ReactJS and AngularJS, as well as integrating APIs. I've led small developer teams back home, using tools like GitHub, GitLab, Notion and Linear. I'm fluent in Gujarati, English, and Hindi, making communication a breeze. As a remote developer, I'm here to turn your ideas into reality. Whether it's working solo or coordinating a team, count me in to get the job done. I can provide a wide range of services that are designed to attract attention and cater to the most searched for needs. Here are some examples of the services I offer. -> Web application development -> Font-end UI/UX development -> Back-end REST APIs development -> Application deployments on cloud -> Version upgrades -> Technical lead for teams -> Application maintenance or support -> Technical consultation -> Project management -> Problem solving -> Small project to large (feature, enhancement, bug, issues)

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.