Based in Sweden · Open to opportunities

I build where
software meets reality.

Software developer working across backend systems, embedded devices, networking and cybersecurity. I like taking ideas all the way from protocol and code to a working physical system.

Mustafa Qassmieh overlooking Stockholm at sunset
STOCKHOLM · 2026Software / Embedded / Security
VOICE / UIBACKENDWIRELESSHARDWARE
4+years building software
3systems domains
01rule: make it work
01 / Selected work

Built, tested,
and made real.

02 — DISTRIBUTED SYSTEMS
Android smart-home app controlling the physical prototype

Smart Home Control System

A multi-client system connecting a Python TCP server, Android client and React dashboard through a Node.js WebSocket gateway, with SQLite persistence and NDJSON messaging.

PythonNode.jsReactSQLiteTCP/IP
03 — ANDROID / TEAM

Kron Schedule App

Production Android work in Kotlin across seven Swedish universities: persistent saved-schedule state, free-tier product logic, UI fixes and contributions delivered through pull requests and team review.

KotlinAndroidGitProduct logic
04 — FULL STACK

Course Registration Platform

A full-stack enrollment platform with student applications, prerequisite checks and administrative workflows secured with JWT authentication.

ReactExpressMongoDBRESTJWT
02 / Experience

Code, classrooms
and real deadlines.

Teaching Assistant

Kristianstad University

Supporting algorithms, data structures, Android and client/server systems. I debug code, guide industry-linked student teams and explain technical trade-offs to groups of 40+ students.

Delivery Driver

Point Logistik

Independent, time-critical night work across multiple routes—planning around fixed deadlines and resolving unexpected problems without losing pace or quality.

03 / About

I’m Mustafa.
Curiosity is the engine.

I’m a Computer Science student nearing graduation, specializing in software engineering and now expanding into cybersecurity.

I’m most at home in the messy middle between disciplines: tracing a packet across services, reading telemetry from a flight controller, soldering a connection, or helping someone reason through a broken algorithm. I care about understanding the whole system—not just the file I’m editing.

Outside the terminal, I train, build electronics, 3D print parts, read Dostoyevsky and occasionally convince myself the next hardware idea will be “a quick weekend project.”

LANGUAGES

JavaScript / TypeScript
Python · Kotlin · C/C++

SYSTEMS

Linux · TCP/IP · WebSockets
REST · Distributed systems

HARDWARE

ESP32 · UART · Sensors
RF · Soldering · 3D printing

DATABASES

SQLite · MySQL
MongoDB