Muhammad
Full-stack engineer — PT Telkom Satelit Indonesia
I write the software between field sensors and the people who have to act on them — MQTT pipelines, APIs, and the dashboards at the other end.
01 — Services
REST and BFF services in Express + TypeScript on PostgreSQL. Multi-tenant auth, Socket.IO for live data, shipped in Docker with Swagger docs.
MQTT from device to database: ingesting node and sensor streams, keeping the flow up, and turning thresholds into alerts someone will see.
Next.js screens that operators use on shift — live readings, event logs, alarms, arm/disarm controls and CSV export.
02 — Selected work
Real-time security and environment monitoring for warehouses. Readings from 4 IoT nodes and 8 sensor points travel over MQTT into Express and PostgreSQL; I built over 80% of the Next.js dashboard in a team of four.
Next.js · Express.js · PostgreSQL · MQTT
A Backend-for-Frontend API for a mobile asset-monitoring app used by five state-owned defense companies — PT Len, PINDAD, DI, DAHANA and PAL. I worked on live GPS trip tracking, geofence alerts and multi-tenant auth.
Express.js · PostgreSQL · TypeORM · Socket.IO · Docker
Tracks water quality, temperature and water level from sensors reporting every five minutes, and warns when readings go abnormal. A cross-divisional build where I worked across the full stack.
Next.js · Express.js · PostgreSQL · IoT
A small, practical MVP for neighbourhood laundry businesses: take an order, track its status, keep customer records. Built to be deployable quickly on cheap hosting.
CodeIgniter 3 · PHP · MySQL · Bootstrap
03 — Experience
PT Telkom Satelit Indonesia
Current full-time role.
PT Synergy Dua Kawan Sejati
Built the IoT backend on a dynamic database schema, kept the MQTT data flow running, and led frontend development of the monitoring dashboard in Next.js.
4 IoT nodes · 8 sensors · 0 downtime in testing
PT Len Industri (Persero)
Part of the team building a BFF API (Express + TypeScript) for a mobile asset-monitoring app across five defense companies. Implemented GPS trip tracking, geofence alerts and multi-tenant auth.
5 companies · Real-time GPS · BFF architecture
IPB University — Vocational School
Embedded systems, web application development and sensor-based automation. Graduation expected June 2026.
04 — Toolkit
Need an API, an IoT data pipeline or a monitoring dashboard built on a freelance basis? Email is fastest. The form lands in the same inbox.