- I've spent over 2 years building native Android apps — Kotlin/Java, Clean Architecture, custom UI, SDK integrations — for a platform with 2M+ users. Right now I'm using Kotlin Multiplatform to share business logic between Android and Web on a personal project.
- Day to day I work with NestJS + GraphQL. On the side, I designed and built a Spring Boot microservices backend from scratch — API, crawler, auth, caching — for a personal project.
- Currently building a course-deal verification & discovery platform — a solo project I've wanted to tackle since university. It started as a native Android app and has grown into a small distributed system: a Spring Boot backend, an ingestion/crawler pipeline, and a Kotlin Multiplatform client.
- I'm also interested in reverse engineering and app security (Smali, network analysis), which still shapes how I think about hardening the apps I build.
- I self-host a fair amount of my own infrastructure — see it live at my homelab dashboard.
- Longer term, I'm working toward being a strong solo developer across mobile and backend — comfortable owning a product from the database up to the screen it renders on.
- I write occasionally at thanh0x's blog.
- Currently open to Android / Backend roles — reach out via LinkedIn or Email.
 Kotlin |
 Java |
 TypeScript |
 Android |
 CMP |
 Spring Boot |
 NestJS |
 GraphQL |
 SQLite |
 PostgreSQL |
 Redis |
 Firebase |
 Docker |
 GitHub Actions |
 Cloudflare |
 Proxmox |
 Git |
 Figma |
 Cursor |
 Claude |
 IntelliJ |