Fractional Ruby on Rails developer for fast moving teams.

I'm Wagner Matos, a UK based software engineer helping startups, agencies, and SaaS companies build and maintain reliable Rails applications. Available for ongoing retainer or fractional engagements across the UK, US, and Europe.

You don’t always need to hire another engineer permanently. I can join your team part-time or on retainer to ship features, refactor legacy code, or keep your app stable and moving forward.

I integrate quickly, communicate clearly, and respect your team’s process. My goal is to make your life easier, whether that’s reviewing PRs, leading a small rebuild, or helping you plan technical decisions.

How I can help

• Fractional Rails Development - Ongoing part-time engineering support for your product.
• Technical Consulting - Architecture reviews, code audits, and mentoring.
• Feature Development - Design and build new functionality with clean, maintainable code.
• AI & Machine Learning Integration Add intelligent features to your apps: recommendation systems, natural language processing and AI-driven automation.
• Maintenance & Support - Keep your app secure, up-to-date, and performant.