Hire principal / staff Ruby on Rails developers

Senior Full-Stack Rails Developer (7+ years experience), based in Bristol, UK. Fluent in Rails, Typescript, Hotwire, Stimulus, VueJS, and React. I have over 8 years of experience consulting on, and building award winning apps for start-ups and scale-ups in a variety of industries. Among others, I've worked with e-commerce, marketplaces, digital media, events publishing, and SaaS platforms, and I have a breadth of experience that would benefit any business. I'm approachable, friendly, hard working, professional and I will always work with you on a human-level to build what is best for your business needs. Looking for full-time remote work. Love working with small companies and startups and helping them grow. Also open to part-time contracts and odd jobs.

I'm an experienced senior level software developer with a decade of experience building full stack web applications. The primary tech stack that I've worked with for the vast majority of my career has been Ruby on Rails. Throughout my career, I've worked in various industries spanning from education to health tech, working on traditional monolithic architectures to working with larger scaled applications built on service oriented architectures. I'm comfortable working in both small and larger teams as I have experience in both.

As a seasoned freelance software developer, I bring extensive expertise in Ruby on Rails, React, JavaScript, TypeScript, and GraphQL. I have successfully delivered numerous projects, ranging from MVPs to complex systems serving millions of users. My specialization includes performance tuning, AI integrations, and product leadership. Known for being self-driven and easy to manage, I excel in hands-on coding and product ownership. Please have a look at my website to learn more. I can provide up to 6 hours of overlap with the US timezone and full overlap with EU/UK timezones. Skills: Ruby on Rails Postgresql React TypeScript JavaScript GraphQL Server - Ruby GraphQL Client - Apollo CI/CD (CircleCI, Jenkins) Heroku

As a Certified Scrum Master with 10 years of experience, I specialize in web technologies like Ruby on Rails, Node.js, React, and more. My career has been shaped by working with diverse, distributed startup teams, where I've built and scaled reliable products. Developer Origin Story My journey began at university, where a passion for solving complex problems sparked my love for coding. This passion led me to a career focused on creating impactful software solutions, from upgrading legacy systems to developing new applications. Recent Milestone Recently, I led the successful development and release of a key feature at my recent gig, coordinating efforts across multiple teams and time zones. This project highlighted my strengths in technical leadership and effective communication. Passion and Continuous Learning I'm deeply passionate about both teaching and learning. I regularly conduct training sessions on CI/CD pipelines and testing frameworks, and I enjoy mentoring junior developers and giving guest lectures on Git. Unique Skills My unique blend of technical expertise, leadership, and a passion for continuous learning makes me a valuable asset to any team. I'm highly analytical, empathetic, and inquisitive, always striving to build scalable, reliable, and innovative solutions.

Hi, with 7+ years of experience as a Ruby on Rails and full stack developer, I excel in building dynamic and scalable web applications. My expertise spans across a range of JavaScript frameworks, including ReactJS, NextJS, NodeJS, NuxtJS, and VueJS. I combine my strong backend skills with modern frontend technologies to deliver seamless, high-performance solutions My journey started with a keen interest in technology and quickly evolved into working on complex projects. Recently, I led a team to build a scalable microservices-based application, which enhanced both user experience and performance. I’m also exploring serverless technologies, like AWS Lambda, to improve application efficiency. What makes me stand out is my ability to handle both frontend and backend development, solve tough problems, and create user-friendly solutions. My diverse skills and hands-on experience make me a strong addition to any development team. Let’s build something great together!

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 a freelancer I help startups get started; advising on the technical aspects of their product and working to build out their stack. For the past 7 years I have been working with Ruby and Rails and have architected a number of large applications. In a previous life I was a JavaScript developer and technical team lead.

I'm an accomplished software engineer with an expansive background spanning over eight years, dedicated to devising innovative solutions that enrich people's lives. My expertise revolves around optimizing processes, amplifying efficiency, and untangling complex problems within web development, focusing on Ruby on Rails, GoLang, Next.js, and JavaScript. My journey in software development has empowered me to shepherd intricate projects from conception to realization. Proficient in technologies such as Kubernetes, AWS, and Docker, I specialize in crafting and deploying scalable solutions, leveraging a robust foundation in software development. My project portfolio spans diverse sectors, including healthcare, ecommerce, fleet and car rental management, telecom, oil & propane, and insurance. This breadth of experience has honed my adaptability, enabling me to excel in diverse project landscapes. Presently, I'm immersed in backend engineering for a dynamic fleet management system. My toolkit encompasses languages like Ruby, Golang, and Next.js, enabling me to engineer seamless user experiences. Driven by an insatiable thirst for knowledge, I relentlessly seek avenues to expand my skill set and remain abreast of cutting-edge technologies. My goal is to channel my expertise into effecting tangible and positive changes in the world. Skills: Proficient in Ruby on Rails, Go, SQL, NoSQL, Redis, RabbitMQ, and well-versed in front-end technologies including HTML, CSS, React, and Next.js.

Senior developer, interim and fractional CTO, generalist. Front-end, mobile and back-end work, from tiny MVPs to efficient, scalable services. Focus on frontend work in React and building features that solve real pains for real people. Entrepreneurial leaning, and experience in building first-version products and prototypes. Open source contributions across all kinds of projects, including Rails and Elixir. Excited about fanning the flame of real inspired work, high energy teams and making a difference.

I am Kirui Elias, a Rails Software Engineer with expertise in Ruby on Rails, Laravel 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.