Hello, I'm Rahmat!

I build fun stuff on the web and mobile, and have a interest on Photography.

I'm a developer aiming to build things that useful with catchy design.

I believe software should be great for everyone those who write it and those who use it and that bringing joy to problem-solving is the key to that.

Latest posts

Every now and then I write about something I'm interested about.

2025 In Retrospective

12 min read

Another year, another story to tell.

Review: Clair Obscur: Expedition 33

5 min read

A deep dive into the Game of the Year 2025 contender that revitalizes turn-based RPGs with French romanticism and real-time mechanics.

Kotoba Web Project

6 min read

Building an interactive Japanese learning web application with React and Tailwind CSS.

2024 In Retrospective

13 min read

Amazing year, a lot of things to talk about.

Projects

I like to build some small projects when learning. Technologies are varied and so are their purposes. Most of them are open source!

OpsHub Discord Bot

Claude-powered Discord operations hub with autonomous /dev coding agent, Jira integration, GitHub event feeds, and Synology container infrastructure monitoring.

gsheet_to_arb

Open-source Dart CLI tool automating Flutter localization (ARB) from Google Sheets documents, featuring category grouping, pluralization, and Dart intl codegen.

Kashin

Personal finance management system featuring a Go REST API with Chi router, Cloudflare D1 serverless database, JWT authentication, and interactive SvelteKit dashboard with instant demo mode.

Kotoba Web

An interactive Japanese learning web application built with React and Tailwind CSS.

Read Blog Post

Trackez

Published cross-platform workout tracking mobile app on Google Play Store with reactive state management, offline-first SQLite caching, custom animation timers, and test-covered workout progression algorithms.

Read Blog Post

Personal Website

The website you’re seeing right now. Designed to be pretty, simple, and lightweight.

Work Experience

Over the past 4+ years, I've worked on a lot of cool projects with great people.

View Resume

PaveNow

Mobile, Frontend & Backend Developer

Feb 2024 → Sep 2026

Joined as a Mobile Developer in 2024, building Flutter and Dart features for invoicing management aligned with Polish business requirements. Expanded into frontend development in 2025 using SvelteKit and TypeScript while continuing to maintain the mobile application. Began contributing to Go backend services and REST APIs in 2026. Collaborated with product and engineering teammates to deliver maintainable financial product features.

9Sky-Ventures

Mobile & Frontend Developer

Sep 2021 → Dec 2023

Built and deployed 0-to-1 cross-platform MVP mobile applications and web platforms using Flutter and Next.js under strict delivery timelines. Implemented Clean Architecture to decouple core business logic from UI, resolving cross-platform state synchronization, device lifecycle, and native integration challenges.

Telkom Indonesia

Software Engineer (Internship)

Jun 2021 → Aug 2021

Automated database maintenance routines and query validation workflows using Oracle SQL and Shell scripting, ensuring high data integrity and reliability across internal database operations.