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5+ years across Android (Kotlin/Compose) and Flutter with full mobile-vertical ownership — system design, SDK architecture, security, hiring, and release automation. Architected a Zero-Trust payment SDK with certificate pinning and biometric auth. Built a fintech POS (15 Gradle modules, SQLCipher, TLS 1.3) passing SAMA/PDPL audit with zero findings. Led DDD Melos monorepos at 99.6% crash-free, reduced fraud 18%, and cut release cycles from 4h to 15 min.…5+ years across Android (Kotlin/Compose) and Flutter with full mobile-vertical ownership — system design, SDK architecture, security, hiring, and release automation. Architected a Zero-Trust payment SDK with certificate pinning and biometric auth. Built a fintech POS (15 Gradle modules, SQLCipher, TLS 1.3) passing SAMA/PDPL audit with zero findings. Led DDD Melos monorepos at 99.6% crash-free, reduced fraud 18%, and cut release cycles from 4h to 15 min.

Mohamed Abouassi

App Developer, Full Stack Developer, Front-End Developer, +2

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5+ years across Android (Kotlin/Compose) and Flutter with full mobile-vertical ownership — system design, SDK architecture, security, hiring, and release automation. Architected a Zero-Trust payment SDK with certificate pinning and biometric auth. Built a fintech POS (15 Gradle modules, SQLCipher, TLS 1.3) passing SAMA/PDPL audit with zero findings. Led DDD Melos monorepos at 99.6% crash-free, reduced fraud 18%, and cut release cycles from 4h to 15 min.…5+ years across Android (Kotlin/Compose) and Flutter with full mobile-vertical ownership — system design, SDK architecture, security, hiring, and release automation. Architected a Zero-Trust payment SDK with certificate pinning and biometric auth. Built a fintech POS (15 Gradle modules, SQLCipher, TLS 1.3) passing SAMA/PDPL audit with zero findings. Led DDD Melos monorepos at 99.6% crash-free, reduced fraud 18%, and cut release cycles from 4h to 15 min.

Available to hire

5+ years across Android (Kotlin/Compose) and Flutter with full mobile-vertical ownership — system design, SDK architecture,
security, hiring, and release automation. Architected a Zero-Trust payment SDK with certificate pinning and biometric auth. Built
a fintech POS (15 Gradle modules, SQLCipher, TLS 1.3) passing SAMA/PDPL audit with zero findings. Led DDD Melos
monorepos at 99.6% crash-free, reduced fraud 18%, and cut release cycles from 4h to 15 min.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Language

Arabic

Fluent

English

Advanced

Work Experience

Senior Mobile Engineer / Team Lead at Daftarpay

May 1, 2024 - Present

Android POS + Flutter Wallet POS architecture: authored HLD and built a 15-module Gradle architecture (10 core + 4 feature + app) in Kotlin/Compose; security: TLS 1.3 certificate pinning, SQLCipher AES-256, audit logging (9 event types); Dual-channel payment reliability using FCM and coroutine polling with atomic state locks; update strategy with Shorebird OTA and remote config AB testing; leadership: conducted 30+ technical interviews, hired 4 engineers; achieved 99.6% crash-free Melos monorepo; reduced fraud by 18%; reduced release cycles from 4 hours to 15 minutes.

Senior Mobile Engineer / Team Lead at Istinara-MATC

August 1, 2023 - April 1, 2024

Architected Zero-T rust Android SDK with Ktor + OkHttp, isolated DI (Koin), MVI; 3-tier security (certificate pinning, root detection, anti-tapjacking); Biometric auth via Android Keystore; Idempotent retries with backoff; PII-redacted crash context logging; Facade pattern unifying services; Migrated monolith to DDD Melos monorepo; Reduced rework by 15%; 99.9% reliability across $5M+ transactions for 384K wallets; NFC HCE support; Server-driven UI; QR scanning; Firebase Remote Config and A/B testing; Release automation with Codemagic; multi-flavor releases.

Senior Flutter Engineer (Freelance) at Al-Ahram Group

January 1, 2024 - December 1, 2024

Monorepo Melos 2-app with 10+ shared packages; offline-first drift data layer; Riverpod lifecycle; on-device PDF rendering RTL Arabic; batch image gallery; 3-flavor environments; golden tests; lint rules; Mocktail unit tests; lc ov coverage; open-source contributions.

Mobile Engineer at Mozodi

July 1, 2021 - August 1, 2023

Melos monorepo (2 apps + 8 shared packages); Google Maps full stack integration; 50% code reuse; resolved native memory leaks in 5,400+ SKU catalog, reducing CPU overhead 15% via Kotlin profiling; improved business metrics including chat resolution time and B2B credit engine reducing cart abandonment ~12%; multi-tenant RBAC with audit logs.

Mobile Developer Hybrid at Elnooronline

November 1, 2020 - May 1, 2021

Open-source design-system library adopted across squads; Drift offline data layer, Riverpod-enabled lifecycle; 2 local PDF generation engines with Arabic RTL rendering and multi-page financial statements; multi-image gallery with batch upload.