Vinh Nguyen
Solution Architect at FPT Software · Đà Nẵng, Vietnam
I design AI systems on AWS and still write the code every week — the two halves are the point. Architects who stopped coding design things their team cannot build; managers who never coded commit to dates the system cannot meet.
What I build
- Agentic systems and AI automation, mostly for small teams and solo operators — the unglamorous parts: intake, follow-up, reporting.
- Retrieval-augmented generation, LLM evaluation, Amazon Bedrock.
- Making automated work verifiable. An agent that runs unattended is only useful if you can tell afterwards whether it was right. Evaluation harnesses, audit trails, and results published even when the answer is no.
Selected work
ai-crypto
A research platform for discovering and rigorously falsifying crypto trading strategies. Every configuration it has searched so far has been rejected; it publishes the machinery that reached that verdict alongside the evidence that the verdict is trustworthy — event-sourced paper trading, implementation-parity verification, and a documented negative-results record.
bedrock-eval-harness
An evaluation harness for Amazon Bedrock. It keeps a fixed set of cases and answers the two questions that follow any model or prompt change: did it get better, and what does it now cost? A run is a file rather than a terminal scrollback that is gone, so two runs are compared case by case instead of by one average — two runs can score the same and still have lost a case and gained another. Pass criteria are machine-decidable, so no model grades another model.
claude-jobs
Scheduled, unattended Claude Code CLI runs on an existing subscription, no API key required. The wrapper details that decide whether a 3am job succeeds or fails silently.
Tide Flow VN
Harmonic tide visualization for Vietnamese coastal stations — constituent-based prediction rendered in the browser.
Background
- 16 yrsSoftware engineering, across games, product and cloud
- 7 yrsGames — Unity, Unreal, webgame; real-time constraints and state management
- 5 yrsProduct management and running a company
- 3 yrsAI automation and agentic systems
Certifications
- AWS Certified Generative AI Developer – Professional 2026
- Project Management Professional (PMP) 2024
Working together
Open to project work, hourly consulting, and monthly retainers — remote. The problems I am most useful on are the ones where a team needs both the system designed and the delivery run, and hiring twice is not proportionate to the work.