Acquisition systems
Dealer Acquisition System
Dealer acquisition pipeline for a commercial equipment marketplace. It qualifies dealers, normalizes listings, preserves each run, and rechecks availability.
TypeScript 
PostgreSQL Selected engineering work
Systems I can talk about in public.
Each page covers the problem, the engineering choices, and the parts worth discussing in an interview. Source and live links are included where available.
TypeScript PostgreSQL Distributed system
Enroll
Course registration system focused on keeping seat counts correct under concurrent enrollment. It combines a Next.js UI, NestJS API, PostgreSQL locking, background waitlist jobs, and an audit trail.
Next.js 
Prisma PostgreSQL 
Redis 
MongoDB 
Turborepo Full-stack platform
Nomadhood
Neighborhood discovery app for remote workers. It brings location signals into one comparison view and uses preference matching to surface places with a similar feel.
Next.js 
React 
tRPC Prisma PostgreSQL 
MapLibre 
Zod 
Bun Game engine and 3D
Blaqjaq
3D blackjack with a film-noir presentation and a game engine isolated in a pure TypeScript reducer. A browser audit and 159 automated tests cover the playable experience; the production delivery path was also measured at 500 VUs with 0% request failures.
React TypeScript 
Three.js 
Vitest 
k6 Civic data · Hackathon build
Emergency Lifeline Auditor
When the next disaster hits, can this county hear the warning and move?
A county-level disaster-readiness explorer built from public federal data. It brings risk indicators, a map, a table, and shareable filters into one operational view.
Next.js React TypeScript 
TanStack Vitest