Roozbeh Zarei

I build for Android and beyond. For the past 4 years, my work has been centered on Kotlin, along with KMP and Flutter for multiplatform development. I’m also a Linux enthusiast, occasional blogger, and French learner.

I am currently open to new opportunities.

Resume

4 Years of Experience

Experience

June 2026 - Present
OTIC

Senior Android Engineer

Architected real-time, peer-to-peer voice calling for a multi-node P2P messaging app using WebRTC and mDNS peer discovery, optimizing audio codecs and network transport to sustain stable calls on ultra-low 60 kbps bandwidth in degraded environments.

Automated releases through a GitLab CI/CD pipeline, covering lint checks, tests, APK builds, and publishing, which cut release prep from hours to minutes.

Mar 2025 - Feb 2026
Fapna

Senior Android Engineer

Engineered a suite of Android security and enterprise tools—including a custom MDM policy enforcement solution, an offline antivirus scanner utilizing PackageManager inspection, and a high-speed file encryption utility using byte-level magic header manipulation.

Grew addressable market by 36% by refactoring a legacy codebase to run on older Android versions with no feature regressions.

Apr 2024 - Dec 2024
Noviner

Mobile App Developer

Built a cross-platform telehealth application for a UAE-based online clinic using Flutter and Dart, integrating the Google Maps SDK for geolocation-based clinic discovery and end-to-end lab test booking.

Dec 2023 - Apr 2024
Upwork

Freelance Android Developer

Delivered 5 bespoke Kotlin applications for international clients with a 100% 5-star rating—including an interactive mobile game engineered with custom interpolator animations (acceleration/deceleration physics) and real-time score state management.

Jul 2022 - Oct 2023
Borhan Mobin

Junior Android Developer

Architected and launched a high-traffic soccer ticketing app as the sole Android engineer, sustaining 20K+ concurrent users during peak match-day sales while maintaining high stability via Firebase Crashlytics and Analytics.

Engineered a custom-optimized interactive stadium seating map capable of rendering hundreds of selectable seats simultaneously without UI freezes or frame drops on low-end devices.

Built an internal Android POS app for stadium staff using ML Kit barcode scanning and thermal printing to validate and print tickets.

Education

Feb 2023 - Aug 2025
Islamic Azad University

Software Engineering

Earned Bachelor's degree with GPA of 3.3.

Sep 2016 - Jan 2019
Islamic Azad University

Software Engineering

Earned Associate's degree with GPA of 3.4.

Skills

  • Kotlin
  • Kotlin Multiplatform
  • Jetpack Compose
  • Flutter
  • Firebase
  • GitLab CI/CD
  • WebSocket
  • WebRTC
  • RESTful

Certificates

Projects

SuperWebView – Turn your website into an app without writing code

SuperWebView – Turn your website into an app without writing code

FOSS
Filester – Temporary cloud storage for fast, private file sharing

Filester – Temporary cloud storage for fast, private file sharing

FOSS

Contact

Tehran, Iran

Open to Work

Get in touch