Profile

Oleh Khrystenko
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  • Last visit: 5 days 18 hours ago

Specializations

Web Programming

1048 place/6595

AI & Machine Learning

89 place/2882

CV

Real code. Unfair speed.

Full-stack developer with 6+ years of experience. I specialize in SaaS products, AI integrations, and business automation.

Stack: Next.js, NestJS, TypeScript, MongoDB, Stripe, Anthropic API.

What I do:

  • SaaS MVP from scratch, production-ready
  • AI/LLM integrations (Claude, OpenAI, RAG pipelines)
  • Stripe subscriptions, Connect for marketplaces, webhook logi
  • Audit and fix of broken projects (including vibe-coded / AI-generated apps)

I deliver working code, not prototypes.

Tags

mongodb saas stripe API Integration Nestjs MVP architecture full stack develop ai agents

Skills and abilities

Programming

Services