51NEWYORK — INDEPENDENT PRODUCT STUDIO● Available
Hey there, my name is Galih

Turning ideas into working software.

A one-person studio shipping real products since 2015. Available for full-stack builds, startup MVPs, and turning prototypes into production-grade apps.

Galih Muhammad
23,575+
Open-source downloads
4
Products shipped
11 yrs
Building & shipping
SERVICES

What I take on

01

Full-stack web & mobile apps

End-to-end development from data model to refined interface — owned by one person who sees the whole picture.

02

MVPs for startups

A lean, production-ready first version to validate your idea — fast, focused, and built to grow with you.

03

Vibe-coded apps → production

Take your AI-assisted prototype and make it stable, secure and scalable enough for real, paying customers.

Selected work

ALL LIVE IN PRODUCTION →
AI Chat to Notion screenshot
Chrome Extension APP

AI Chat to Notion

Job hunting, gamified. XP, levels and achievements that keep you applying.

ContextMax screenshot
OPEN SOURCE

ContextMax

Reusable context sets for any LLM. Privacy-first context engineering.

Outside The Pan screenshot
MOBILE APP

Outside The Pan

Helps households with meal preparation; from recipe inspiration, weekly planning, and prepping grocery list

EXPERIENCE

Where I've Worked

A decade building and shipping software across products and teams — before going solo.

51 New York logo

Solo Builder

Feb 2025 — current
51 New York ↗· Jakarta, Indonesia

Started a one-person software company that builds multiple products to solve user problems.

  • Built a Chrome extension that helps Notion users save their AI conversations into Notion pages — 90+ weekly users.
  • Shipped a weekly meal planner and recipe-inspiration iOS app with 1.5k users.
  • Launched a job-application tracker Chrome extension to help job searchers save jobs and parse requirements (since discontinued).
WeTransfer logo

Senior Engineer I

Jan 2022 — Dec 2024
WeTransfer ↗· Amsterdam, The Netherlands

Maintained subscription services in production managing 80M+ subscribers at 440 req/s, integrated with Stripe, PayPal, and RevenueCat.

  • Built the entitlements service from scratch in TypeScript, scaling it to 40 req/s at p95 of 29 ms across all WeTransfer products.
  • Decoupled and refactored a legacy cleanup service, cutting its daily volume from ~1M to ~30–40k records with zero incidents.
  • Set up a streamlined process for experimental local-currency launches — shipping Australia, Canada, and the Nordics.
  • Maintained the mobile subscription backend and built extensive monitoring across the Android and iOS apps.
Mekari logo

Lead Software Engineer

Aug 2019 — Jan 2022
Mekari ↗· Jakarta, Indonesia

Led a bilingual, distributed team across 3 time zones and 4 islands on a 70:30 manager / IC split, owning the internal billing system with accounting and payment integrations.

  • Set up industry-standard security practices for PII management, API authentication, and authorization.
  • Achieved critical-system uptime above 99.98% SLA while sustaining a healthy Apdex of >94%.
  • Established a strong engineering culture of documentation, RFCs, on-call rotation, and >95% code coverage.
Pintar (prev. HarukaEdu) logo

Lead Ruby on Rails Developer

Aug 2016 — Aug 2019
Pintar (prev. HarukaEdu) ↗· Jakarta, Indonesia

Promoted from Rails developer to Lead Developer for the Zoom-integrated University Management System. Led and mentored a team of 4 on a 50:50 manager / IC split.

  • Delivered an internal notification system for student enrollment 60% ahead of schedule using Slack channels.
  • Built internal APIs for attendance and grading that were more scalable, modular, and efficient than the legacy versions.

Open source, quietly in production

My Ruby gems have been downloaded 23,575+ times by developers I'll never meet — the same reliability I bring to client work.

Jekyll-Airtable thumbnail
7k+

Jekyll-Airtable

Airtable as a CMS for Jekyll sites.

Flock Notifier thumbnail
14,835

Flock Notifier

Post to Flock Chat channels from Ruby.

Supabase-API thumbnail
1,740+

Supabase-API

Query Supabase like ActiveRecord.

CONTACT

Have a project in mind?

Tell me what you're building. I reply to every serious enquiry within a day.