Hoàng
Bá Văn
I build backends that don't flinch — Spring Boot, .NET, and the pipelines that keep them honest.
Selected
systems.
TC LLM Generator
A test-writing machine that collaborates.
An AI-powered platform that turns plain-language feature descriptions into structured, editable test cases — and lets a whole QA team refine them together in real time.
- ROLE
- Full-stack
- STACK
- Spring Boot 4 · Java 21 · PostgreSQL · Redis · Next.js · Docker
- LAYERS
- 6
SchoolMedical
One record for every student's health.
A school health management system — student medical records, vaccination schedules and nurse workflows across multiple campuses, with push notifications to keep everyone in the loop.
- ROLE
- Backend engineer
- STACK
- Spring Boot 3.5 · Java 21 · MySQL · Spring Security · JWT · Firebase
- LAYERS
- 5
HematologyLab
Never lose track of a sample.
A 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 + React)
- STACK
- .NET · C# · React · PostgreSQL · Docker
- LAYERS
- 5
Built from
the middle out.
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.
Parts
list.
| ITEM | PART | GROUP | USED IN |
|---|---|---|---|
| 01 | Spring Boot / Java | Backend | , |
| 02 | .NET / C# | Backend | |
| 03 | Node.js | Backend | side projects |
| 04 | Go | Backend | side projects |
| 05 | PostgreSQL | Backend | , |
| 06 | MySQL | Backend | |
| 07 | Redis | Backend | |
| 08 | TypeScript | Frontend | side projects |
| 09 | React | Frontend | |
| 10 | Next.js | Frontend | |
| 11 | Tailwind CSS | Frontend | side projects |
| 12 | HTMX | Frontend | side projects |
| ITEM | PART | GROUP | USED IN |
|---|---|---|---|
| 13 | Docker | DevOps | , |
| 14 | Linux (Arch) | DevOps | side projects |
| 15 | GitHub Actions | DevOps | side projects |
| 16 | Prometheus | DevOps | |
| 17 | Grafana | DevOps | |
| 18 | Loki | DevOps | |
| 19 | LLM integration | AI / Tools | |
| 20 | Claude API | AI / Tools | side projects |
| 21 | OpenAI API | AI / Tools | side projects |
| 22 | WebSocket | AI / Tools | |
| 23 | OAuth2 / JWT | AI / Tools | , |
| 24 | Clean Architecture | AI / Tools |