Backend, frontend, and the server it all ends up on.
Fullstack developer in Purwokerto, Indonesia. Four years building school and finance systems end to end. Go, TypeScript and PHP, plus the CI/CD and containers underneath them.
2020
Coding since
3
First place
570
GitHub stars
3,586
Commits, 12 mo
01What I do
A bad edge case in these systems is not a rounding error. It is somebody's record, or somebody's money. So I would rather ship something boring that holds.
Most of what I know came from working inside a platform of around 20 services that has to stay consistent without sharing a database. It taught me the habits I default to now: clear boundaries between services, contracts another team can build against, migrations that are safe to run twice, and queries that still behave once the table stops being small.
I like owning a service properly, from its data model to the endpoints other people call, and staying close enough to the product to know why something is being built and not just what.
02Open source
85★
stars · 3 years maintained
A framework for building WhatsApp bots on top of Baileys, published on npm and maintained for three years.
The work here is mostly API design: deciding what a bot author has to write, what the library should handle for them, and keeping that surface stable while the underlying protocol library moves.
700+
servers
An Indonesian word game bot for Discord, with Daily, Battle and Time Attack modes.
The number that matters here is not stars, it is servers. This one is running in more than seven hundred of them.
fanaSelf-hostable disposable email, built so automated tests can actually use it.own SMTP server
s3-explorerA web file manager for S3-compatible storage.0 credentials stored03On my own
Jul 2022 to present
The software arm of my vocational school, run as a freelance practice
Web systems for schools and small institutions, plus whatever else comes through the door. Four years, and still the place I try things first.
Built with a small team, where roles blur. Mine usually runs from the schema to the server.
41
repositories in the org
8
languages across them
4 yrs
and still pushing weekly
Schools, a clinic and a foundation. The unglamorous side of the practice, and the part that pays for the rest. Mostly Laravel and Blade.
PKL monitoring rebuilt across a few years, with a WhatsApp bot handling the daily loop and a downtime checker watching that the bot is still alive.
Three repositories: a TypeScript API, a Next.js frontend, and a Go rewrite of the backend when the first one stopped being fun to extend.
CI/CD pipelines, a frontend boilerplate, an internal SDK and server utilities, so a new project starts from something instead of from nothing. Katla also lives here, rewritten in Rust.
04On a team
On a team since 2025, inside an education and payments platform of around twenty Go, Laravel and Node services used by schools, partners and their members.
Admissions, attendance, scheduling, quizzes and hafalan tracking, from the data model through the REST contracts to the mobile endpoints, plus the Next.js dashboard built against that same service so the API and the screens ship together.
Moved live schools off the old platform onto the new one with a migration that resumes where it stopped, so no school lost a working day.
The pipeline that takes a new partner from signup to live: document checks, provisioning across services, their own subdomain, and the stock they start with.
Invoice logic on the school side, and reference IDs that stay unique across invoices and every payment made against them, so a payment matches exactly one bill.
Reworked the delivery path across push, email and WhatsApp so notifications survive the days everyone gets one at once.
Routing, certificates and per-environment manifests when something I built needs them. The platform itself belongs to the people who run it full time.
Timeline
All three at PT Cazh Teknologi Inovasi, Purwokerto
05Every day this year
Twelve months, read live from GitHub. Work and open source together.
Busiest day 52 on 26 Aug 2026
06Competitions
2024 ran the whole ladder: first at regency level, first in Central Java, then top 4 in the country in Web Technology, with a Medallion of Excellence for work that cleared the standard rather than for the placing alone.
LKS SMK 5
LKS, short for Lomba Kompetensi Siswa, is Indonesia's national skills competition for vocational high schools. Reaching the national round means placing first at regency level and then at provincial level in the same year.
20251st place
IT Software Solution for Business Dinas Pendidikan Kabupaten Banyumas
A separate category from Web Technology, closer to desktop and data work.
2024Top 4
Web Technology Kementerian Pendidikan
Awarded a Medallion of Excellence, given to competitors whose work passes the standard threshold rather than for placement alone.
20241st place
Web Technologies Dinas Pendidikan dan Kebudayaan Provinsi Jawa Tengah
The provincial round, which qualified me for the national final.
20241st place
Web Technologies Dinas Pendidikan Kabupaten Banyumas
The regency round, which qualified me for the provincial round.
20232nd place
Web Technologies Dinas Pendidikan Kabupaten Banyumas
A year before winning the same category.
Outside LKS
20243rd place
Hackathon Telkom University Purwokerto
07Say hello
Open to talking about backend work, system design, and anything around education or payments.
