VT.

HCMC

Full-stack × AI systems

Full-stack engineerputting LLMs intoreal products.

Currently at Kite Metric

I'm Vo Tu Trinh — a full-stack engineer shipping AI, fintech and enterprise products from requirements to production.

Selected work →Say hello

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  Now

Full-stack engineer at Kite Metric, building client products in AI/LLM, fintech and enterprise software. Focused on making LLM workflows dependable: async jobs, authorization and multi-tenancy.

Selected work

01 — 3 projects · 2023 — now
  1. 01

    AI Interview Agent

    AI voice interviews and structured candidate reports, so recruiters review a recommendation instead of starting from scratch.

    → ~150 candidate applications through one client deployment

    • OpenAI
    • Gemini
    • n8n
    • Vapi
    • Next.js
    AI / HR-tech
  2. 02

    Audit-Grade AI

    An AI platform for audit and compliance work. I extended the pipeline that turns documents into annotated datasets for small-language-model training, and built the annotator qualification module.

    → Lower LLM processing cost through batch API requests

    • FastAPI
    • React
    • Next.js
    • PostgreSQL
    • LlamaIndex
    AI / Data pipelines
  3. 03

    Car Care Platform

    Booking and garage management for customers, merchants, staff and admins in one system.

    → Top 10 of 50 entries in a large-company competition

    • React
    • NestJS
    • Supabase
    • Tailwind CSS
    Platform / Operations

Off the clock / In the lab

Personal projects.
Real curiosity.

A space for things I build for myself. First up: Sayso, turning the YouTube videos I love into English I can actually use.

Enter the lab
Sayso — learn English from the videos you want to watch001 / Sayso
02 — About / Practice10.8231° N · 106.6297° E
Vo Tu Trinh smiling and looking down
Fig. 02Trinh, between two deploys

Product-minded engineering

I turn rough conversations intoproducts people can actually use —shaping the experience, architectureand the intelligence behind it.

01
3+
years shipping production software
02
4
clients worked with directly, requirements to release
03
3
domains shipped in: AI/LLM, fintech and enterprise
04
3.6
GPA · Excellent degree, VNU-HCM University of Science (2025)

Honors

  • B.Sc. IT with Excellent degree — VNU-HCM University of Science2025
  • Binh Dinh Fellowship Scholarship2022
  • Ranked 1st, Faculty of IT — K20 cohort2020

How I work

03 — Process
  1. 01

    Listen

    Sit with the client, map the real workflow, and write down what “done” means before any code exists.

  2. 02

    Architect

    Turn requirements into a schema, service boundaries and an honest plan for where the LLM belongs — and where it doesn't.

  3. 03

    Build

    Own the feature end to end: UI flows, API, database and the deployment that puts it in front of users.

  4. 04

    Harden

    Make it survive reality — async workflows instead of fragile webhooks, traceable AI decisions, boring deploys.

Experience

04 — Career / 2020—Now

A career built by taking on more of the problem.

Trinh in a black blazer at INNOEX 2026, demoing AI-transformation work
Demoing AI transformationINNOEX · HCMC · 2026
  1. Aug 2024 — PresentHo Chi Minh City
    Current chapter

    Kite Metric JSC

    Full-Stack Engineer

    • Core engineer on concurrent client engagements in AI/LLM, fintech and enterprise software, working directly with product owners, business analysts, advisors and clients.
    • Clarifies loosely defined requirements, agrees the design, then builds, ships and maintains it — including the engineering that makes LLM workflows dependable: async jobs, authorization and multi-tenancy.
  2. Apr 2023 — Aug 2024Ho Chi Minh City

    LEAP LLC

    Full-Stack Engineer

    • Built digital-transformation and B2B/B2C booking web platforms for multiple clients, replacing manual booking processes.
    • Developed search, booking, ticketing and seller-management modules with Angular, Java Spring Boot, Docker and PostgreSQL.
  3. 2020 — 2025Ho Chi Minh City

    University of Science — VNU-HCM

    B.Sc. Information Technology · Excellent degree

    • Graduated 2025 with an Excellent degree, overall GPA 3.6 / 4.0.
    • Ranked 1st in the Faculty of IT, K20 cohort (2020). Binh Dinh Fellowship Scholarship (2022).

The toolbox

05 — Working set / 06 disciplines

Tools change. The standard doesn't.

Principle / 01

A practical stack for taking products from interface to infrastructure — chosen around the problem, not the trend.

  1. 01

    Frontend

    Interfaces & product flows

    • React
    • Next.js
    • Angular
    • Tailwind CSS
  2. 02

    Backend

    Services & system boundaries

    • Node.js
    • NestJS
    • Python
    • FastAPI
    • Java Spring Boot
  3. 03

    AI / LLM

    Retrieval, agents & workflows

    • OpenAI
    • Gemini
    • Anthropic
    • RAG
    • LLM agents
    • LlamaIndex
    • n8n
    • Vapi voice agents
  4. 04

    Data

    State & system of record

    • PostgreSQL
    • Supabase
  5. 05

    Delivery

    Build, ship & deploy

    • Docker
    • GitHub Actions
    • Vercel
    • AWS (basic)
  6. 06

    AI-assisted dev

    Drafts by AI, reviewed by me

    • Claude Code
    • Codex
    • Cursor

Writing

06 — 02 field notesView archive
  1. 01
    A candidate taking part in a remote interview with headphones and a laptop
    LLM · n8n · Reliability

    Webhooks time out. LLM workflows don't care.

    Why long-running LLM evaluations broke behind synchronous webhooks, and the async pattern that fixed it.

  2. 02
    A service advisor, customer and technician working inside a modern automotive garage
    Full-Stack · Architecture · NestJS

    Designing one platform for four kinds of users

    What building a garage booking system for customers, merchants, staff and admins taught me about schema-first product work.

07 — Contact

Let's build
something real.

vttrinh0502@gmail.com →