Hire diretor / equipe Ruby on Rails developers

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.

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 product-minded developer who builds with the business’s needs front of mind. Ruby on Rails is my tool of choice because it’s the fastest way to turn ideas into impact. Its opinionated structure enables consistent delivery and makes it easier to scale teams without reinventing the wheel. Over the past decade, I’ve led and contributed to projects that not only ship but drive significant business impact In one internal platform modernization project, leadership projected needing 16 full time employees after the rebuild. Four years later, the same team of four was still using the software productively saving the company 12 full time employees. I also look beyond the technical tasks to spot leveraged opportunities. On a recent project, I identified a low-priority feature that, if built more robustly upfront, could unlock internal productivity. That decision now saves every employee 30 minutes a day, which results in thousands of hours a year saved. I thrive when building internal platforms, business efficiency, and moving fast to get the business impact as quickly as possible.

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! 🚀

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

IT professional (since 2011), specializing as a backend-heavy full-stack engineer with a focus on Ruby / Ruby on Rails (since 2014). Strong in database design and SQL optimization (Oracle, PostgreSQL). Adept in shell scripting and testing (RSpec, Cypress). Experience includes working in both large international corporations with a multicultural environment and small local startups. Experienced in leading teams and mentoring trainees (since 2018). Successfully delivered over 25 projects across diverse sectors, including telecom, GIS, AI/ML, real estate, and EdTech. Holds a B.Sc. in Computer Science and an M.Sc. in Applied Informatics.

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, Spanish.

As a developer with over 7 years of experience, my journey began with a curiosity for how technology can be harnessed to solve real-world problems. Early on, I was drawn to full-stack development because of the opportunity to work across the entire application lifecycle. My expertise lies in Ruby on Rails, ReactJS, and React Native, but my passion for learning has driven me to continually expand my skill set with technologies like GO, NextJS, Node.js, and Python. One of my recent accomplishments was leading the development of a mobile app that streamlined a complex insurance process. By integrating APIs, building a custom voucher system, and enhancing the user interface, I not only improved the user experience but also contributed to a 10% increase in sales. This project reinforced my belief in the power of well-crafted software to drive business success. What sets me apart as a developer is my focus on problem-solving and scalability. I thrive on dissecting complex issues, whether it's improving performance by optimizing code or implementing a solution that scales seamlessly. I’m passionate about helping businesses grow through technology, and I pride myself on my ability to adapt quickly, learn new tools, and apply them to solve unique challenges. Above all, I am committed to building high-quality, impactful software that not only meets the needs of users but also drives meaningful results for the businesses I collaborate with. Whether it’s developing from scratch, maintaining existing projects, or testing new ideas with an MVP, I bring a versatile and solutions-driven mindset to every challenge.

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.

Hi, I'm Wolfgang, senior software engineer and software architect. Everything's too complicated and you feel like nobody understands what's going on in your systems anymore? New features take long to implement and always introduce unforeseen new issues? With an exceptional ability to visualize and understand the interactions within large systems, I'm skilled in fixing and improving existing systems as well as designing scalable and maintainable new software architectures. I specialize in backend and full-stack development and have over 20 years of experience utilizing a broad range of technologies. I work with businesses of all sizes, from small startups to large enterprises and help them build and maintain robust, scalable solutions. For more details please see my website and feel free to contact me if you have any questions or just want to get in touch.