Tien Nguyen · Senior AI-Native Full Stack Engineer
Building reliable products,
from spec to production.
I ship products end-to-end, from Go, Node.js, and Rust backends to polished React frontends. AI-assisted and spec-first, I turn ambiguous requirements into working software in days, not weeks.
Selected Work
Projects where I led engineering or made significant impact.
Enterprise Shift Rostering: Rust Migration
Migrated a production shift-rostering service from Java/Kotlin to Rust for a B2B workforce-management SaaS, improving performance and memory safety.
Faster, memory-safe rostering with backward-compatible behaviour
Nerd GPT: AI Agent Platform
Full-stack AI agent platform integrating LLM APIs with a custom tool ecosystem for automated multi-step task execution.
Prototype-to-production cycles compressed from weeks to days
Poly Arbitrage Trading Engine
Low-latency arbitrage trading engine in Go processing real-time data streams across markets, with a full-stack monitoring dashboard.
Low-latency processing across multiple concurrent markets
Portfolio
Personal products I've designed and built end-to-end.
Writing
Technical articles and short notes.
Articles
Most of your AI coding bill is cache, and how to stop breaking it
When your quota vanishes twice as fast as it should, the culprit is almost never how much you generated. It is how often you broke the cache without noticing.
When I reach for a team of agents, and when one is enough
Running five agents in parallel looks like five times the output. Usually it is five times the tokens and a coordination problem. Here is the line I draw.
About
How I Work
I work spec-first and take ownership end-to-end, from domain and schema to deploy and production. An AI-assisted workflow lets me move in days, not weeks.
Stack
AI-Native
- Claude Code
- Cursor
- LLM APIs
- RAG / MCP
Languages
- TypeScript
- Go
- Python
- Rust
Backend
- NestJS
- FastAPI
- Axum
- PostgreSQL
Frontend & Cloud
- React
- Next.js
- AWS
- Docker
Let's Work Together
Building something ambitious? I'm open to senior/staff engineering roles and select work, especially teams shipping AI-native products.