Open to opportunities

Arad Sheybak

@aradsheybak

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Senior Android and Full-Stack Developer specializing in Kotlin, Django, and IoT integrations.

Iran

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What I'm looking for

I seek impactful roles building end-to-end mobile and backend systems, with emphasis on IoT, scalable architecture, and opportunities to contribute to open-source and product improvements.

I am a proactive Senior Android & Full-Stack Developer with over 5 years building scalable mobile, backend, and web applications, delivering production-ready apps used by 10K+ users.

I specialize in Kotlin, Jetpack Compose, MVVM, Coroutines and Django REST Framework, with hands-on IoT experience (MQTT, BLE) and frontend work in React; I design modular architectures, robust APIs and optimize systems for reliability and low error rates.

I've independently delivered end-to-end solutions — from Android POS and BLE IoT apps to Django backends and real-time MQTT integrations — and I actively contribute to open-source projects that emphasize clean architecture and offline-capable features.

Experience

Work history, roles, and key accomplishments

Current

Android Developer

Current

NobParts

Aug 2025 - Present (3 months)

Developed an Android POS app for Bank Mellat terminals integrating barcode scanning, OTP verification and direct POS payment transfer, delivering the full project independently within 30 working days and eliminating manual entry errors.

Kotlin MVVM Coroutines Retrofit Hilt Barcode Integration

Current

Full-Stack Developer

Current

Gipa

Jan 2024 - Present (1 year 10 months)

Designed and built an end-to-end restaurant ordering system with Android POS clients and Django REST backend, optimizing order registration to under 10 seconds and reducing mistakes to zero.

Kotlin ROOM Coroutines Hilt Django REST Framework PostgreSQL API Design

Full-Stack Developer

Noora

Jan 2024 - Dec 2024 (11 months)

Developed a BLE-based IoT Android app and Django REST backend with JWT and social logins, delivering a functional prototype that connected BLE devices to cloud and mobile app.

Kotlin Django REST Framework JWT Social login Byte Array Data Transfer

Android IoT Developer

HSI

Jan 2022 - Dec 2024 (2 years 11 months)

Built real-time IoT Android apps controlling lighting, curtains and thermostats via MQTT using Eclipse Paho and Kotlin coroutines, delivering robust two-way synchronization across controllers.

Kotlin MQTT Eclipse Paho Coroutines IoT

Android Developer

Total

Jan 2022 - Dec 2023 (1 year 11 months)

Developed a bilingual freight management app using Kotlin and Room, automating freight request workflows to reduce human error and improve operational efficiency.

Kotlin Coroutines MVVM ROOM Offline First Localization Workflow Automation

Senior Android Developer

BidArz

Jan 2021 - Dec 2022 (1 year 11 months)

Led Android development of a cryptocurrency exchange app from scratch, implementing authentication, wallet management and live market tracking with a crash rate under 1% and thousands of users.

Kotlin Coroutines Retrofit ROOM Authentication Performance Optimization