Sviat O.

13 years building production software. $200K+ earned on Upwork, 3,300+ hours, 100% Job Success, and Top Rated Plus.

I help founders turn AI-built and inherited applications into stable, maintainable products that are ready to grow.

If you built your app with Cursor, Lovable, Replit, Claude, or ChatGPT, it may work well as a prototype but struggle with real users, payments, new features, or higher traffic.

I work with the code you already have. I keep what works, fix risky areas, and improve the system without pushing for an unnecessary rewrite.

I can help with:

• Vibe-coded app stabilization
• Production-readiness and codebase audits
• Architecture, security, and performance
• Authentication, payments, and databases
• Reliable AI integrations
• Taking over from a previous developer

I have built and maintained SaaS products, AI systems, RAG pipelines, Chrome extensions, and complex production platforms across AWS and Azure.

You work directly with me - no agency, handoffs, or middlemen. I explain technical decisions clearly and take responsibility for the full product, not only individual tickets.

Stack: Next.js, React, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB, Supabase, AWS, Azure, Stripe, Python, OpenAI, and Anthropic.

A good first step is a focused codebase audit. You receive the main risks, priorities, and a clear plan to make your product stable and ready for growth.