Full-stack developer — HCMC, Vietnam

Hoàng
Bá Văn

I build backends that don't flinch — Spring Boot, .NET, and the pipelines that keep them honest.

@vchun · github.com/bavanchun
currently → TC LLM Generator
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Selected
Work

01 / 3 projects · 2024—2025
001

TC LLM Generator

2025 Live

AI-powered test case generation platform. LLM-assisted authoring with real-time collaboration via WebSocket, OAuth2 JWT auth, and a full observability stack (Prometheus · Grafana · Loki · Tempo). Clean Architecture, HATEOAS Level 3 REST. Role: full-stack.

Spring Boot 4Java 21PostgreSQLRedisNext.jsDockerOAuth2WebSocket
002

SchoolMedical

2025 Live

School health management system — tracks student medical records, vaccination schedules, and nurse workflows across multiple campuses. JWT security with Firebase-backed push notifications. Role: backend engineer.

Spring Boot 3.5Java 21MySQLSpring SecurityJWTFirebaseMapStruct
003

HematologyLab

2024 Internal

Web platform for hematology lab management: sample tracking, result reporting, and role-based access for lab technicians and doctors. Built as a group project at FPT Software Academy. Role: full-stack (.NET BE + React FE).

.NETC#ReactPostgreSQLDocker

About

02
Hoàng Bá Văn
HOÀNG BÁ VĂN — @VCHUN

A developer with a DevOps streak and a soft spot for small, fast tools.

I've spent the last few years moving between product work and infrastructure — writing .NET services that handle real traffic, Go binaries that live in people's terminals, and the occasional AI-flavored side project when it keeps me curious.

My happy place is the boring middle of the stack: queues, schemas, caches, deploy pipelines. The stuff nobody sees, quietly doing its job at 3am.

Outside work I daily-drive Arch Linux, tinker with self-hosting, and occasionally write about the projects on this page.

0
Years building
0
Shipped projects
Coffees

Stack
& Tools

03
Backend
  • Spring Boot / Java
  • .NET / C#
  • Node.js
  • Go
  • PostgreSQL
  • MySQL
  • Redis
Frontend
  • TypeScript
  • React
  • Next.js
  • Tailwind CSS
  • HTMX
DevOps
  • Docker
  • Linux (Arch)
  • GitHub Actions
  • Prometheus
  • Grafana
  • Loki
AI / Tools
  • LLM integration
  • Claude API
  • OpenAI API
  • WebSocket
  • OAuth2 / JWT
  • Clean Architecture