I will build fullstack apps with nodejs and nextjs

Q
qialet
Q
qialet
Semyon A

About this gig

Full-stack web apps built end-to-end: Node.js/NestJS backend, PostgreSQL, React/Next.js frontend from your Figma design.


What you get:

  • REST API built with NestJS, Prisma, and PostgreSQL typed, tested, documented
  • React/Next.js frontend with Tailwind and Shadcn, matched to your Figma file
  • Auth done right: Keycloak or Better Auth, sessions, roles, token handling
  • Payments and third-party integrations when your app needs them (Stripe, Square)
  • Deployment via Docker and GitHub Actions your app runs in production, not just on my laptop


Why work with me:

I regularly inherit undocumented legacy codebases and ship into them without breaking anything that's a different skill from greenfield builds. On a recent project I cut a core query's response time by 81% and a batch job's runtime by 83%. I use Claude Code daily to move fast without cutting corners on architecture or test coverage.

Get to know Semyon A

Semyon A

Fullstack Developer

  • FromRussia
  • Member sinceAug 2026
  • Languages

    English, Russian
I am a Fullstack Developer specializing in Node.js and NestJS with commercial experience in payment integrations, authentication infrastructure, and database optimization. I can own the full development cycle from schema design to React interfaces. I am comfortable working in undocumented codebases and utilize AI-agentic tools like Claude Code to deliver high-quality software.