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, 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 Kotlin applications for international clients with a 100% 5-star rating.

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.

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
  • git
  • 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