Andrii R.

I help startups and growing businesses build and maintain scalable web applications using Ruby on Rails, React/Next.js, and Svelte. I’m a senior web developer with 8+ years of experience, helping founders and businesses turn ideas into scalable, production-ready web applications. I’ve worked with early-stage startups, SaaS companies, and long-term product teams, delivering solutions that balance speed, quality, and business value. My core stack includes Ruby on Rails, React, and Svelte, and I use these technologies to build maintainable systems that grow with your business. 🚀 Full-Cycle Development for SaaS & MVPs I specialize in end-to-end web application development, especially for: SaaS products MVPs and early-stage startups Long-term product development From idea validation and technical planning to deployment and scaling, I help you move fast without creating long-term technical debt. I often use Ruby on Rails for backend development due to its productivity and stability, combined with React or Svelte for modern, responsive frontends. If you’re building an MVP, I focus on shipping the right features first. If you’re scaling a SaaS, I focus on architecture, performance, and maintainability. 🧠 Business-Focused Problem Solver I don’t just implement requirements — I question them when needed. I take time to understand your business model, users, and constraints, then suggest technical solutions that support real outcomes. Whether I’m designing APIs in Ruby on Rails or building UI components in React or Svelte, my goal is to solve business problems efficiently. This approach helps founders avoid overengineering, wasted budget, and costly rewrites later. ⭐ Why Clients Hire Me Clients choose to work with me because: I think like a product owner, not just a developer I understand the needs of SaaS founders and startups I’m comfortable owning features end-to-end I communicate clearly and proactively I build solutions meant for long-term growth, not throwaway code 🛠 Technologies & Expertise Backend Ruby on Rails (APIs, business logic, background jobs) Node.js GraphQL & REST APIs MongoDB & relational databases Test-Driven Development (TDD) Frontend React.js, Next.js, Redux Svelte for lightweight, high-performance interfaces Ember.js DevOps & Infrastructure Docker Kamal CI/CD pipelines and production deployments I frequently pair Ruby on Rails with React or Svelte to build SaaS platforms, internal tools, admin dashboards, and customer-facing applications. 🤝 Long-Term Collaboration Mindset I’m especially interested in long-term contracts where I can grow with the product and take real ownership. That means: Improving existing codebases Refactoring and scaling Rails applications Adding new features safely over time Acting as a reliable technical partner If you’re a founder who wants someone you can trust beyond the MVP phase, I’m a strong fit. 🚀 How I Help Your MVP Succeed (Founder-Friendly) Building an MVP isn’t about building everything — it’s about building the right thing, as fast and safely as possible. When I work with founders on MVPs, my goal is to help you validate your idea, save budget, and set a strong foundation for future growth. Here’s how I approach MVP development: Clarifying the core idea I help you turn your vision into a clear, realistic feature set. We focus on what truly matters for early users — not nice-to-have features that slow you down. Choosing the right technical scope I actively push back on overengineering. Using Ruby on Rails on the backend and React or Svelte on the frontend allows us to move fast while keeping the codebase clean and scalable. Shipping early, then improving I prioritize getting a working product into users’ hands quickly. Feedback beats assumptions, and early traction is more valuable than perfect code. Avoiding costly rewrites later Even for MVPs, I design the architecture to scale into a real product. This means fewer rewrites, smoother scaling, and easier onboarding of future developers. Acting as a technical partner If you’re a founder without a strong technical background, I explain trade-offs in plain language and help you make informed decisions — not just technical ones, but business ones. Many founders appreciate that I can move fast like an MVP requires, while still thinking ahead like a long-term product engineer. 📩 Let’s Build Something That Lasts If you’re a SaaS founder, building an MVP, or looking for a long-term Ruby on Rails developer with strong React and Svelte experience, feel free to message me. I’ll be happy to learn about your idea and help you choose the best technical path forward. Highlighted Skills: Ruby on Rails, Svelte, Node.js, React.js, Next.js, Redux, Ember.js, MongoDB, GraphQL, Docker, Kamal, Test-Driven Development (TDD), Front-End Development, Spree Commerce. Last updated: 01 June 2026