Jan Smrcka
Jan Smrcka

Full-stack Engineer

Full-time at ELI · Taking select contracts

I build products
from zero to production

Full-stack engineer for startups and dev teams that need senior execution without the overhead.

7+ years React & TypeScript · Ex-Moneta Money Bank · Building open-source dev tools · Full-time at ELI Beamlines

Featured Build

HeadBoard

WIP

Headless alternative to Canny. SDK-first feedback boards — React hooks, not iframes.

GoNext.jsPostgreSQLRedisCaddy

What I Do

MVP Build

Zero to launch in 4-8 weeks. Full-stack MVP with auth, database, deployment.

Outcomes:
  • Working product
  • Clean codebase
  • Deploy pipeline
Next.jsTypeScriptPostgreSQLVercel/Railway

Frontend Overhaul

Modernize legacy UI or build from design files. Performance and accessibility included.

Outcomes:
  • Production-grade UI
  • Mobile responsive
  • Fast load times
ReactTailwind CSSMotionTypeScript

Backend + API

API design, database modeling, authentication. REST or GraphQL.

Outcomes:
  • Scalable API
  • Auth system
  • Database schema
GoNode.jsPostgreSQLDocker

Architecture Rescue

Fix broken systems, refactor technical debt, stabilize production.

Outcomes:
  • Stability restored
  • Tech debt cleared
  • Docs updated
Any stackPerformance profilingMigration planning

Recent Builds & Writing

Get in Touch

Full-time engineer at ELI Beamlines (ERIC).
Taking select part-time and short-term contracts on the side.
Best fit: MVPs, architecture reviews, frontend overhauls.