Available for new projects

> Hello, I'm

Joshua

Backend-focused software engineer. I build APIs, services, and systems that are reliable, observable, and actually ship.

terminal — ~/portfolio

> whoami

Backend Engineer

I build the server-side of things — APIs, data pipelines, authentication, and the glue that makes frontends work. I prefer simple, correct code over clever abstractions.

Currently working with Go and TypeScript, designing systems that are testable, observable, and boring enough to trust in production.

> focusBackend / APIs
> stackGo, TypeScript, Postgres
> locationIndonesia

> stack.matrix

Tools I reach for

// Languages

// Frameworks

// Infrastructure

// Tools

> featured work

Recent projects

Coming Soon2026

Zetryn — Incident Intelligence Platform

Automated telemetry ingestion, cross-service event correlation, and incident detection platform.

#Go#OpenTelemetry#PostgreSQL#Redis#React#Docker
Live 2026

Speech-to-Text Studio

Hybrid speech transcription & translation app with browser Web Audio extraction, Groq Cloud API, and DeepL translation.

#Python#FastAPI#Whisper#React#TypeScript#Web Audio API#Groq API#DeepL API
View all projects →