Hire Ruby on Rails developers

Software engineer and full-stack web developer with 15 years of experience incl. 7 years CTO. Versatile across the stack, detail oriented, strong communication and problem-solving skills Held positions in mental health, nuclear medicine, and cybersecurity industries Key experience with content-centric apps, REST APIs, control systems. Ruby on Rails and Java. Main Technologies RoR, Postgresql, Hotwire, Tailwind, HTML5 & CSS3, Docker Kotlin, Java, Jetpack Compose Fields of Expertise REST API design Data modelling and database management SaaS payment systems audio-video content delivery front-end tooling admin dashboards and data visualization testing, CI/CD Key Achievements full rewrite of imagineclarity.com front-end (tool-chain, design, code) full rewrite of Imagine Clarity Android app (Kotlin, Jetpack Compose, Turbo Native) full rewrite of web and Android native media players (Vidstack, ExoPlayer) full integration of Stripe, Google, Apple payments (checkout, subscriptions) full rewrite of admin panels and data visualization dashboards (Avo, Blazer) experience with Swift UI, Node, React, Next.js, GraphQL master in mechanical engineering (UCL, Belgium, 2007): fluid dynamics, finite element methods, numerical simulations

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.

Been building on the web since the late 90s. Ruby on Rails since 2007. I love building things that solve a need for users. I'm really into the idea exploration, as well as the implementation, focusing on the important parts and what drives the product forward. I enjoy Ruby, JavaScript and everything web - I strive for the simple solution to prove it works, before going for the more complex. I spent the last 10 years at a company that grew from 80 people when I started to more than 6000 when I left. I've been working on all parts of the stack. I enjoy full stack web development. I like thinking about the UI and making it look crisp. I feel super comfortable on the frontend and likewise on the backend. I have launched, failed and succeeded with multiple side projects. I've worked on everything from small nice-to-use UI details to more complex payment code. I absolutely love Ruby on Rails and the tools it gives me, which makes implementing features and ideas very very fast. I'm good at css, I love JavaScript. I write code because it solves problems for users and that's what excites me :)

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.

I'm a Senior Ruby on Rails Developer with an M.S.c in Computer Science with 8+ years of experience developing commercial applications using Ruby on Rails. During my career, I have successfully developed numerous projects of varying complexity in domains such as CRM, e-commerce, agriculture, crypto, insurance, and more.

 Core Qualifications: - Design, development, and support of numerous web applications sharing the technology stack with Ruby on Rails; - Frontend solutions: Hotwire, Stimulus, React; - Databases design and optimization: MySQL, PostgreSQL;
 - Search engines: Thinking Sphinx, ElasticSearch; - Geolocation search integration: PostGIS, Google Maps; - Background processing: Resque, Delayed Job, Sidekiq; - 3rd party API integrations; - Payments and subscription: Stripe, PayPal; - Marketing: Mailchimp, Facebook, Google Ads, GTM; - Social networks: Facebook, Instagram, Twitter, Google; - Testing using RSpec, Capybara, Cucumber; - Deployment, provisioning, and containerization: Docker, Heroku, AWS; - Application tests coverage and CI/CD configuration: CircleCI, GitHub Actions.

Hello, I've been writing code since 2005 when I was in high school. Statistics class was great, but I figured I could save myself a lot of time if I programmed the formulas into my calculator. Fast forward to today and I've gained many achievements under my belt. Designed a form builder allowing for on-the-fly form and data adjustments to go live in under a minute (instead of requiring custom code). Built and scaled a volunteer management system. Integrated a customer engagement library into WeddingWire's vendor systems to drive additional engagement. Designed and built an analytics product and API from scratch for Castle, the effects of which brought the company to positive net cash flow. Technical lead for Upstart on several forecasting and simulation tools, along with designing the next generation reporting solutions. I enjoy designing systems and greenfield projects. I've built up several skills that make me uniquely positioned to excel at these types of projects. Designing systems for 15 years. Deeply understanding product requirements in unique ways. Optimizing for efficiency and productivity. Seeing and preventing common pitfalls before they ever happen. Breaking down complicated problems into KISS solutions or documents. Project delivery while optimizing for performance and maintenance. Lastly, I have several things I am passionate about. I enjoy both finance and the outdoor industries. I believe in doing things correctly as practice doesn't make perfect, perfect practice makes perfect. This mental model allows me to deliver quickly with minimal defects compared to other engineers. Thanks for your time, and I hope to hear from you soon!

I've been building and maintaining Ruby on Rails applications of all kinds and sizes since 2013, always trying to apply the best practices and community conventions. I'm studying more about AI and ways to improve my work/systems with it. I created a model for my current company to predict delivery times in our platform with 84% of accuracy. I have experience working in projects from conception to release and can work at any level of the stack. I'm that nerd guy always looking at some APM tool and trying to get the best out of the language/framework. I have experience with legacy projects and enjoy solving performance related issues. Technologies I can work with: Javascript, Python, Relational and Non-relational databases, ElasticSearch, APM tools, all major cloud providers.

I'm a passionate software engineer who loves working with Ruby on Rails. Here is an excerpt from my resume where I've spent 16+ years working with Ruby on Rails apps. Primarily eCommerce and marketing applications. Time is split between Project management and Software Engineering roles. Managed and led the development of all software the eCommerce business runs on and expanded from the USA to Canada, United Kingdom, Europe, and Brazil. Organized and tracked work across different projects and teams. Built relationships with partners and negotiated contracts with technology vendors. Led many migrations with different payment processors, fulfilment suppliers, and communication suppliers. Designed and led the development of proprietary software, including custom CRM, CMS, marketing tools, business intelligence, and recurring billing system with multiple countries and currencies. Architected the DevOps for software deployment, including continuous integration/deployment, AWS, EC2, S3, CloudFront, ElastiCache, autoscaling, and elastic load balancers. The software includes logistics and marketing tools that integrate with many 3rd parties including messaging services, Amazon Selling Partner API, FB Advertising, Google AdWords, global address validation/shipping/tracking, PayPal, Stripe, and other payment processors around the world.

⭐⭐⭐⭐⭐ I am a Senior Full Stack Developer with almost a decade of experience in custom software development, specializing in Ruby on Rails, NodeJS, and ReactJS, I have helped numerous clients bring their ideas to life. I have a passion for building high-quality, scalable, and maintainable software that meets the unique needs of each client. My expertise lies in creating elegant solutions that solve complex problems, whether it's building a web application from scratch, optimizing an existing system, or integrating new features. I pride myself on my ability to communicate effectively with clients, understanding their requirements, and providing expert guidance throughout the development process. If you're looking for a reliable, experienced software developer who can deliver results on time and within budget, look no further. Let's discuss how I can help bring your vision to reality.

Hey there, I'm Asif, and I've been on the coding journey since the ripe age of 16. Along the way, I've not only honed my skills but also earned my stripes – winning multiple coding competitions during my college years and securing a commendable 4th place in the ICPC Asia competition regionally. Currently, I'm thriving as a software engineer in the IT industry, with a stronghold on Ruby on Rails. I take pride in crafting well-designed, readable code and finding innovative solutions to challenging problems. Building new tools for my team is my forte, and I relish the process of making complex things simple. I'm not just about coding; I'm a learner. When I'm not immersed in lines of code, you can find me buried in books, playing a game of football. Balancing work and play is key to a productive life, don't you think?