VChunHoang Ba Van@vchun
Portfolio · 2026

Hi, I'm Van.
I build software
end-to-end.

Full-stack engineer with a DevOps streak and a soft spot for CLI tools. Currently building things with .NET, Go, and the Claude API.

van@arch:~
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02About
Van

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.

5+
years building
3+
shipped projects
coffees
C#.NETGoNode.jsTypeScriptPostgreSQLDockerLinuxClaudeReactNext.jsRedisC#.NETGoNode.jsTypeScriptPostgreSQLDockerLinuxClaudeReactNext.jsRedisC#.NETGoNode.jsTypeScriptPostgreSQLDockerLinuxClaudeReactNext.jsRedis
03Selected work
3 projects · 2024 - 2025
01

QuraEx

2026·4 months·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
02

HematologyLab

2025·4 months·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
03

SchoolMedical

2025·4 months·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
04Stack & tools
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
05Say hello

Have a project
in mind?
Let's talk.

I reply within a day or two. Best for freelance work, collaborations, or just a chat about backend, AI, or why Arch is secretly fine.