Nik Marchenco
Tell me about your project →
Ship fast. Tight feedback loops. Clear systems.
Independent product engineer for founders and operators. Build, rescue, migrate, or embed as your fractional founding engineer — one person across product, backend, data, and infra.
What I can help with
- Build your v1 — an idea or designs, taken to a real product in production.
- Untangle a messy system — tangled logic, slow reports, data nobody trusts, replaced with something clean.
- Tune performance — deep SQL / Postgres / PostGIS: large-scale data, geospatial, slow made fast.
- Ship faster — CI/CD, tests, and engineering practices that speed up how your team writes and ships.
- Move clouds — migrate across AWS, DigitalOcean, and Cloudflare to cut cost and lock-in.
Selected work
- Dataplor — built and scaled a global GIS for place dedup and brand–place analysis at 50B+ geometries and 10B+ place observations.
- Mothership — untangled dispatch logic onto one Postgres system and cut $10k+/day in routing costs.
- iOverlander — backend, infra, and tile pipeline rebuilt and still shipping; engagement has run async-only (no calls or meetings) for two years.