
langkahselangkah.com
Ruang belajar terbuka untuk pelajar dan kreator. Temukan, kerjakan, dan beli paket latihan dari berbagai sumber tepercaya.
2026 · Web
Trancend1
Building tools for real problems: web apps, data pipelines, developer tooling. Next.js + TypeScript + Python. Based in Indonesia, work globally.
Available — Asia/Jakarta · Central Java, Indonesia

Ruang belajar terbuka untuk pelajar dan kreator. Temukan, kerjakan, dan beli paket latihan dari berbagai sumber tepercaya.
2026 · Web

Ruang belajar terbuka untuk pelajar dan kreator. Temukan, kerjakan, dan beli paket latihan dari berbagai sumber tepercaya.
2026 · Web
A mix of client work and side projects — full-stack builds that ship, not just prototypes that demo well.
A local-first trading intelligence platform for Indonesian stock investors, combining market data, technical analysis, AI-powered research, portfolio tracking, and decision-support tools in a single workspace.
Production · 18 months · 283 contributions
2026 · Web
A local-first AI translation workspace for Japanese light novels, featuring project management, translation memory, glossaries, character databases, multi-provider AI support, and batch translation workflows.
in development
2026 · Open Source

Stock forecasting and analysis tool built in TypeScript. Active development.
2026 · Web
Tools of the trade
How I work
From the first message to post-launch — here's what working together actually looks like.
We talk first
No proposals before I understand the problem. I open with a discovery call — 30 minutes to map what you actually need, not what sounds right on paper.
discovery callScope before code
I write a clear scope document — what's in, what's out, and why. This is the contract that protects both of us from scope creep and missed expectations.
scoping & estimateYou're never left wondering
I ship incrementally and update you along the way. Async-first, but I respond. You'll always know where things stand — no chasing, no silence.
async communicationHandover that actually works
Delivery includes a walkthrough, documentation, and a follow-up window. If something surfaces post-launch, I'm still around — not a stranger who already invoiced.
post-launch supportOpen to retainer & ongoing work. If you need a developer who already knows your codebase and can move fast, I offer monthly arrangements for teams that want consistent output without the hiring overhead.
A two-stage pipeline: local summarisation first, LLM analysis second. The portfolio data never leaves the machine. Here is how the architecture works and what the prompt engineering problem actually was.
SahamLens runs on DuckDB, not SQLite. The 14× speedup on analytical queries was the easy part. The concurrent connection bug in the dev server was not.
Open for work
Got a project in mind? Let's talk.
Open for contract projects and collaborations — web apps, data tooling, landing pages. Clean code, fast turnaround.