Hi, my name is Masinjaka

Mobile, Web & IoT Developer

I build cross-platform mobile apps, web applications, and embedded hardware systems. I focus on turning complex ideas into clean, functional products tailored exactly to your needs.

5+ years· Mobile & Web· IoT & Firmware

Work

Flutter & React Native Mobile Developer @ Exponent CH

February 2024 — June 2026 · Full-time · Remote

Developed and deployed six production mobile apps (four Flutter and two React Native), built complex interfaces with design and product teams, improved performance through refactoring and architectural work, managed Android and iOS delivery workflows, and integrated REST APIs, authentication, and data synchronization with backend teams.

Freelance Flutter Developer @ French4Dev

November 2024 — January 2025 · Part-time · Remote

Refactored and optimized existing Flutter applications to improve performance, fluidity, rendering stability, maintainability, and scalability.

Flutter Mobile Developer @ Tentron Technologies

September 2022 — February 2024 · Full-time · Remote

Designed and developed two Android and iOS Flutter apps for controlling and monitoring connected wearable devices, including BLE scanning, multi-device connections, remote control, real-time data tracking, and reliable BLE and MQTT communication.

Flutter Desktop Developer @ Smart Teknolojia

February 2022 — December 2023 · Part-time · On-site

Led the development of a Flutter Desktop employee-management and RFID badge application, building its interfaces, business logic, SQL persistence, real-time attendance history, and BLE and MQTT reader integration.