Hire senior Ruby on 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.

A passionate software engineer with the growth mindset of an entrepreneur. I have experience building web applications with well-known frameworks, including Ruby on Rails. I've been lucky enough to build integrations with many third-party API's including: Stripe, Zendesk, Facebook, Airbnb, Expedia, MailChimp, PayPal, Twilio, Segment, Twitter, Booking.com, Securities and Exchange Commission, and more. I have a high bias for action and like to move quickly and iterate. I'm a patient communicator and introvert. I'm a hacker at heart and like finding creative ways to push business to the next level.

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? Let's talk! 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.

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.

I'm a seasoned software developer with over 5 years of experience in the field. My journey into coding began with a thirst for knowledge, leading me to master languages like Ruby on Rails, JavaScript, and frameworks such as Vue.js. Always eager to expand my skill set. Passionate about crafting intuitive user experiences and solving real-world problems through technology, I find fulfillment in the creative and functional aspects of software development.With my comprehensive understanding of the Ruby on Rails ecosystem and proficiency in frontend technologies like Vue.js, I offer a unique perspective to projects. My ability to seamlessly integrate backend and frontend development sets me apart, enabling me to identify and implement innovative solutions where others may struggle.

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.

I'm a programmer living in Belgium. Passionate about building beautiful things through craftsmanship. --- EXPERIENCE --- Senior Developer PAUWELS CONSULTING ⋅ [ 2022 – PRESENT ] • Integrated Single Sign-On (SSO) with Keycloak for Belgian cities and municipalities. • Set up and maintained a background processing system to fetch, parse, anonymize, and store millions of emails daily • Migrated a actively used FinTech application from PostgreSQL to MariaDB. Founder & CEO FRONTIER ⋅ [ 2017 – PRESENT ] • Developed and implemented digital strategies for over 50 SMEs. • Set up, configured, and managed a fleet of servers tailored to customers' projects with Kamal. • Built a gem to create great-looking forms with Bootstrap • Developed an in-house CMS with a wide range of features, including live preview, revision history, a form builder, an email marketing tool, impersonation, a media library, ACL, SSO, over 100 integrations, … Senior Developer DPG MEDIA ⋅ [ 2019 – 2019 ] • Modernized a Ruby on Rails application that is used by national radio stations (e.g., QMusic, JoeFM, and Willy). Work on removing technical debt and increasing test coverage. • Designed an API to be consumed by native mobile apps. • Developed a radio player widget to be embedded in multiple frontends. Medior Developer OMAKASE ⋅ [ 2015 – 2019 ] • Architected a community platform with social features like a web feed, discussion board, live chat, and job board • Set up CI/CD pipelines and monitoring. Managed infrastructure and tuned a bare metal server configuration to maximize performance. • Managed a team consisting of designers, frontend- and backend developers. Junior Developer MULTIMEDIUM ⋅ [ 2012 – 2015 ] • Started with no professional background or any relevant training and quickly took the position as the lead front-end developer. • Built an asset management tool for a large supplier of dentistry products. • Launched audience engagement games on eCommerce websites with more than 10,000 active users. • Manually crafted HTML newsletters for a large media production house --- SKILLS --- Ruby On Rails, Hotwire, JavaScript, UNIX, HTML, CSS, MySQL, PostgreSQL, RubyGems, Docker, Neovim, Nginx, AWS, Photoshop, Figma, Sketch and more --- CLIENT LIST --- Perrigo, European Commission, LiveNation, Samsonite, Pearl Vision, MTV, DPG Media, Bpost, Studio 100, Jaga, KIA --- PERSONAL --- • Born in 1988 • Living in Belgium • MBTI-INTJ personality • Father of a boy and a girl • Hobbies: making, building, brewing, • squash, cuisine, road trips --- EDUCATION --- Master of Education (M.Ed.) UNIVERSITY OF ANTWERP [ 2011 – 2012 ] Master of Science (M.Sc.), Biology: Ecology & Environment UNIVERSITY OF ANTWERP [ 2009 – 2011 ] Bachelor, Biology UNIVERSITY OF ANTWERP [ 2006 – 2009 ] High School KLEIN SEMINARIE HOOGSTRATEN [ 2000 – 2006 ]