The reverse job board for Rails developers

I'm a full-stack developer passionate about building scalable, secure web applications that solve real-world problems. With a strong foundation in Python/Django and Ruby on Rails, I've delivered high-impact systems for government, logistics, and healthcare—most recently developing a secure logistics platform for Kenya’s Ministry of Defense. I’ve modernized legacy infrastructures using React, Node.js, and AWS, and contributed to AI research at Scale AI by refining code generated by large language models. I care deeply about clean code, performance, and delivering solutions that drive efficiency and growth. Let’s build something that matters.

👋 Summary Native iOS (SwiftUI) and Android (Jetpack Compose) app development with Ruby on Rails backend integration. 👨‍💻 Open Source Projects iOS: 65 GitHub Stars Android: 11 GitHub Stars Production-ready app templates for iOS and Android, featuring built-in user authentication and advanced NFC capabilities. 📱 Product: NFC-Powered Waitlist App iOS: App Store Android: Google Play Replaces traditional paper number tags with an NFC-based system for managing walk-in waitlists. App writes app-specific data to two NFC tag types: - 🔴 Server Tag - 🔵 Customer Tag ✅ Customer Flow Customers tap a 🔵 Customer Tag to access a 🟢 public Number Tags Webpage displaying completed tags in real time. ✅ Staff Flow Staff tap a 🔴 Server Tag paired with a 🔵 Customer Tag to mark a number as complete. Completed tags instantly appear on the 🟢 Number Tags Webpage for the customer. 🧪 Tech Stack iOS (Swift / SwiftUI) 100% Swift 99% SwiftUI (UIKit only for contact screen) @Observable (iOS 17) SwiftLint MVVM architecture Unit tests with SwiftTesting Android (Kotlin / Jetpack Compose) 100% Kotlin 100% Jetpack Compose Hilt for dependency injection Retrofit2 Proto DataStore Modern Android app architecture Unit tests Backend (Ruby on Rails) Rails 7.1.x devise_token_auth jsonapi-serializer pundit Turbo / Hotwire Backend powers both mobile APIs and dynamic web pages. 🛠️ Skills Programming Languages Ruby Swift Kotlin JavaScript Frameworks & Tools Ruby on Rails iOS Native (SwiftUI) Android Native (Jetpack Compose) Hotwire Tailwind CSS IDEs Xcode Android Studio Visual Studio Code 📚 Recommended Reading Clean Code The Clean Coder Clean Architecture Clean Agile Refactoring Ruby Refactoring UI 📜 Certifications Apple Search Ads Certified 基本情報技術者（Fundamental Information Technology Engineer – Japan） ソフトウェア開発技術者（Software Development Engineer – Japan, formerly Applied Information Engineer）

Senior Software Engineer with over 15 years of experience, primarily working with Ruby on Rails, including DevOps tasks and also mobile development with React Native. Experience leading a small team on an international project, mentoring junior engineers, discussing with POs, PMs and designers, discovering and proposing ideas to improve projects.

View LinkedIn for past work experience. Remote-US only.

Hello, I'm Jonathan. I like solving problems—often with code. I'm a full-stack engineer with 7+ years of experience building scalable web applications, primarily with Ruby on Rails. I thrive in environments where I can own high-visibility projects, collaborate across functions, and move fluidly between strategy and execution. I'm also very comfortable in asynchronous workflows and product-driven teams. I've built integrations with external APIs, including payment processors and Visa, and I've led projects from idea to launch. Mentorship is part of my rhythm—whether through pair programming or thoughtful code reviews. Lately, I’ve been working on a personal project: an AI-powered productivity app designed to help users set goals, track tasks, and build momentum. I care about clean architecture, thoughtful collaboration, and building tools people actually enjoy using.

Hello, I’m a software developer based in Brooklyn, NY. I moved into software after a long career in digital marketing. Ruby was the “new hotness” when I started, and ten years later it’s still one of my top choices. Recently I’ve been diving into pure functional programming with Scala 2 and front-end libraries like Effect. Rails remains my happy place -I love the autonomy and speed it gives small teams. I prefer hands-on IC work, but I’m happy to help plan and organize when needed. Colleagues and managers often describe me as someone who “gets sh*t done” - a badge I wear proudly! I’d love to hear what you’re working on. Feel free to reach out!

I'm a full-stack developer with a strong background in Ruby on Rails, Turbo/Stimulus, a solid grasp of MySQL and even dabble in some Rust. My specialization is building clean, scalable web applications—whether it’s a subscription platform, a CMS, or a custom developer tool. I prioritize practical, maintainable solutions by getting to the root of the problem and applying the right tools to the right job. Over the years, I’ve led the development of multi-language CMS systems, architected data pipelines between third-party APIs and e-commerce platforms, and built gems and libraries to improve internal workflows. I enjoy taking projects from the ground up, designing both backend logic and the frontend experience. I’m a clear communicator who thrives in autonomous environments. I’m fluent in English and Dutch, with working knowledge of Spanish. Outside of work, I’m a trail runner and fermentation enthusiast, always curious and always learning. If you're looking for a developer who delivers high-quality, thoughtful solutions with minimal hand-holding, I’d be happy to connect.

With 9 years of engineering excellence across diverse domains, I've mastered the art of transforming complex challenges into elegant technological solutions. As the creator and maintainer of the Solid Queue Monitor gem(https://rubygems.org/gems/solidqueuemonitor) —a zero-dependency monitoring solution for Rails background jobs—I've demonstrated my commitment to improving developer tooling in the Ruby ecosystem. In my current role as a Staff Engineer at Torch.io, a coaching platform trusted by industry giants like Stripe, LinkedIn, Airbnb, and TripAdvisor, I've revolutionized support systems by implementing OpenAI's GPT-3.5 for email automation, reducing manual intervention by 48%. I've also leveraged AWS Bedrock with Claude 3.7 to generate organizational insights reports, improving decision-making efficiency by 40%. My technical versatility spans the full spectrum of development—from crafting robust backends with Ruby, Go, and Python to building responsive frontends with React, Angular, and TypeScript. I've engineered large-scale data applications handling 5+ million active users and orchestrated seamless migrations of 4.5 million records while maintaining system integrity. Throughout my career, I've delivered impactful solutions across multiple domains—enhancing FinTech security protocols, optimizing CMS performance, and elevating coaching platforms. This domain versatility, combined with my technical depth and AI integration expertise, allows me to bring a unique perspective to every project and consistently deliver transformative results.

I’m a full-stack developer with over 4.5 years of experience specializing in Ruby on Rails and React.js. I’m passionate about building scalable, user-focused applications and have delivered impactful solutions across industries like fintech, food tech, and internal business tools. What makes me unique is my ability to bridge backend logic with intuitive front-end design, my focus on clean, maintainable code, and my commitment to team growth through collaboration and mentorship. I thrive in agile environments, continuously learn new technologies, and love solving real-world problems with efficient and elegant code. I have led the development of scalable web applications and implemented performance optimizations that improved page load times by over 40%. My responsibilities have included designing APIs, building responsive user interfaces, and collaborating with cross-functional teams in Agile environments.

I am a career-changer that has always found ways to use my coding skills to enhance my value. I am seeking to transition into software development full time. As a career "pivot," I have a strong and reliable work history. I have been the director of a non-profit subsidiary, managed the development of a Salesforce platform for a program providing college education to incarcerated and formerly incarcerated students (700+ students in six locations), launched a temporary supportive housing program for formerly incarcerated college students working towards completion of their degrees, and previously worked as a paralegal at law firms defending doctors and hospitals in healthcare litigation. All of this built upon a degree in business with a concentration in mathematics. As a developer, I attended a coding boot camp focused on Ruby, Rails, and JavaScript. I have a portfolio of student projects to show for it, but most of my recent coding has focused around open source contributions to projects like Dry-rb and Hanami, including a major refactor of the Hanami Router library. I am insatiably curious and love to learn. I am an excellent communicator, with experience writing documentation, delivering talks, and teaching seminars. I believe that learning, teaching, and collaboration are the three founts of productivity and innovation. I would love to speak with you about how I can contribute to your project and team!