Oleh Khrystenko

@oleh_khrystenko

From vibe coded prototype to paying users fix deploy scale Lovable Claude apps

Ukraine
Englisch, Ukrainisch
Einige Informationen werden in englischer Sprache angezeigt.
Über mich
Paying users in days, not someday. Lovable, Replit, Base44, Bolt, Cursor and Claude Code build fast, then bugs multiply, tokens burn and launch keeps slipping. I fix that. 6+ years building SaaS and MVP products end to end. I debug, secure and finish AI generated apps until they are production ready. You get working auth, Stripe payments and subscriptions, Supabase with row level security enabled, clean deploy on Vercel, AWS or your server, an app that scales with real users. Fixed price. Source code yours. Show me your vibe coded prototype. Let's turn it into revenue.... Mehr lesen

Kompetenzen

o
oleh_khrystenko
Oleh Khrystenko
offline • 
Durchschnittliche Antwortzeit: 22 Stunden

Meine Dienstleistungen

API & Integrationen
I will integrate stripe payments and webhooks for your saas
Ab150 $ / ProjektWeitere Details
Entwicklung von KI-Chatbots
I will build a custom ai chatbot trained on your business data
Ab20 $ / ProjektWeitere Details

Portfolio

Arbeitserfahrung

CyanShip - Founder & Full Stack Engineer

Lovable • Selbstständig

Mar 2026 - Present • 4 mos

CyanShip is a production ready SaaS platform I built from scratch, and the base I use every day to fix and rescue vibe coded apps. My daily workflow runs on Claude Code and Cursor, so I speak the same language as AI generated code. What I do here: – Fix bugs in AI generated websites and apps built with Lovable, Bolt.new, Replit, Base44, v0 and Google AI Studio – Vibe code cleanup and AI code refactoring: clean architecture, maintainable code, no rewrites – AI code security review: Supabase row level security (RLS), exposed API keys, missing authentication, webhook signature validation – Make your app production ready: error handling, rate limits, multi tenant isolation, so it does not break with real users – Stripe payments, subscriptions and usage based billing – LLM integration (Anthropic API, OpenAI API), AI agents, MCP servers, Claude workflow automation Stack: Claude Code, Codex, Cursor, TypeScript, Next.js, NestJS, Node.js, MongoDB, Redis, Docker, DevOps, Prompt Engineering, Rest API, Bug fixing, Debugging. Don't let technical debt kill your launch.

Base44

Arctic Web – Full Stack Engineer

Base44 • Vollzeit

Dec 2024 - Mar 2026 • 1 yr 3 mos

Full stack web development for production SaaS projects. Designed scalable database architectures with MongoDB and PostgreSQL, built and maintained complex REST APIs with Node.js and TypeScript. Here I got my first commercial experience with AI app builders: took over a Base44 prototype and turned it into a stable web app, fixing bugs and adding proper error handling. Owned the full deployment and DevOps side: VPS deployment, Docker, CI/CD pipelines, Vercel, Railway, Netlify, AWS, DNS and SSL setup, Cloudflare. Performance optimization that helped apps scale and launch faster. This is where I learned to take a stuck project from a technical wall to a stable production release.

ChatGPT

Wish Hub – Founder & Full Stack Engineer

ChatGPT • Selbstständig

Jan 2024 - Jan 2025 • 1 yr

Took my own SaaS MVP from idea to app: complete web app development from prototype to product. Built with an AI first workflow: OpenAI's ChatGPT was my daily pair programmer for code generation, debugging and refactoring. Scalable backend with Node.js and MongoDB, AWS S3 cloud storage integration, frontend with Next.js and TypeScript, automated data extraction and user privacy settings. This project taught me what founders actually need to finish an app and launch: fixed scope, clean code, source code yours, no endless rewrites.