Role
Full-Stack AI Engineer
ZynSols · Sukkur, Pakistan
Shipped an AI resume analyzer (92% accuracy over 500+ resumes), a marketplace app on both stores, and the published Hono-vs-Express benchmark.
At ZynSols I worked across the full stack on AI-powered product work. The resume analyzer is the most-measured piece: a serverless pipeline that parses unstructured PDF resumes, runs ATS scoring, keyword matching, and skill-gap detection, and ships at 92% accuracy across 500+ resumes. The backend is NestJS on Bun with PostgreSQL, BullMQ over Redis for the document queue, and the OpenAI API for the scoring call.
I also built a cross-platform marketplace app in React Native with Expo, Appwrite, and Stripe, including real-time cart state via Zustand and virtualized FlatList rendering at 60fps. Stripe processed 200+ transactions in the first weeks after launch.
The third major piece is a project management platform on Bun and Express with MongoDB, role-based access control, Kanban boards, and multi-user delegation for team collaboration.
I benchmarked Hono.js against Express on Bun and published the result: 8.2x higher throughput (31K vs 3.8K RPS) and 53x lower latency. The repo and the autocannon scripts are public so anyone can rerun the numbers.