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Lead & Senior Mobile Engineer with 7+ years of experience delivering high-scale native iOS and Android systems to App Store and Google Play. Formally proved as a Lead Mobile Engineer at Saraf, directing dual-platform architectures for a flagship fintech product with 1M+ downloads and 99.2% crash-free users. Expert in on-device ML and client-side generative AI integrations using Core ML, TFLite, and Vertex AI SDK. Leverages cutting-edge AI engineering workflows (Cursor IDE, GitHub Copilot, Claude Code) to accelerate syntax scaffolding, automate comprehensive unit test coverage, and drive agile delivery. Proficient in Swift/SwiftUI, Kotlin, Jetpack Compose, and cross-functional mentorship, with strong focus on performance, stability, and CI/CD quality.…Lead & Senior Mobile Engineer with 7+ years of experience delivering high-scale native iOS and Android systems to App Store and Google Play. Formally proved as a Lead Mobile Engineer at Saraf, directing dual-platform architectures for a flagship fintech product with 1M+ downloads and 99.2% crash-free users. Expert in on-device ML and client-side generative AI integrations using Core ML, TFLite, and Vertex AI SDK. Leverages cutting-edge AI engineering workflows (Cursor IDE, GitHub Copilot, Claude Code) to accelerate syntax scaffolding, automate comprehensive unit test coverage, and drive agile delivery. Proficient in Swift/SwiftUI, Kotlin, Jetpack Compose, and cross-functional mentorship, with strong focus on performance, stability, and CI/CD quality.

Amir Hassan Mousavi

App Developer, Web Developer, Software Engineer, +4

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Lead & Senior Mobile Engineer with 7+ years of experience delivering high-scale native iOS and Android systems to App Store and Google Play. Formally proved as a Lead Mobile Engineer at Saraf, directing dual-platform architectures for a flagship fintech product with 1M+ downloads and 99.2% crash-free users. Expert in on-device ML and client-side generative AI integrations using Core ML, TFLite, and Vertex AI SDK. Leverages cutting-edge AI engineering workflows (Cursor IDE, GitHub Copilot, Claude Code) to accelerate syntax scaffolding, automate comprehensive unit test coverage, and drive agile delivery. Proficient in Swift/SwiftUI, Kotlin, Jetpack Compose, and cross-functional mentorship, with strong focus on performance, stability, and CI/CD quality.…Lead & Senior Mobile Engineer with 7+ years of experience delivering high-scale native iOS and Android systems to App Store and Google Play. Formally proved as a Lead Mobile Engineer at Saraf, directing dual-platform architectures for a flagship fintech product with 1M+ downloads and 99.2% crash-free users. Expert in on-device ML and client-side generative AI integrations using Core ML, TFLite, and Vertex AI SDK. Leverages cutting-edge AI engineering workflows (Cursor IDE, GitHub Copilot, Claude Code) to accelerate syntax scaffolding, automate comprehensive unit test coverage, and drive agile delivery. Proficient in Swift/SwiftUI, Kotlin, Jetpack Compose, and cross-functional mentorship, with strong focus on performance, stability, and CI/CD quality.

Available to hire

Lead & Senior Mobile Engineer with 7+ years of experience delivering high-scale native iOS and Android systems to App Store and Google Play. Formally proved as a Lead Mobile Engineer at Saraf, directing dual-platform architectures for a flagship fintech product with 1M+ downloads and 99.2% crash-free users. Expert in on-device ML and client-side generative AI integrations using Core ML, TFLite, and Vertex AI SDK.

Leverages cutting-edge AI engineering workflows (Cursor IDE, GitHub Copilot, Claude Code) to accelerate syntax scaffolding, automate comprehensive unit test coverage, and drive agile delivery. Proficient in Swift/SwiftUI, Kotlin, Jetpack Compose, and cross-functional mentorship, with strong focus on performance, stability, and CI/CD quality.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Beginner

Language

English

Advanced

Persian

Fluent

Work Experience

Senior Mobile Engineer (iOS & Android) at Rouzan eh

May 1, 2026 - June 30, 2026

Designed and shipped native calendar application for iOS (Swift, SwiftUI, UIKit, MVVM-C) and Android (Kotlin, MVVM) on a shared Clean Architecture foundation. Maintained 99.5%+ crash-free sessions with sub-second cold start and smooth 120fps UI across both platforms through performance profiling and memory optimization, supporting 30,000+ campaign sessions. Owned the full delivery lifecycle from design handoff to production release, including dependency injection, unit testing, and store submission for both platforms.

Senior Mobile Engineer (iOS & Android) at Rouzane(h) (rouzan eh)

May 1, 2026 - June 1, 2026

Single-handedly designed and shipped a native calendar application on both iOS (Swift, SwiftUI, UIKit, MVVM-C) and Android (Kotlin, MVVM) on a shared Clean Architecture foundation. Released via TestFlight and at calendar domain royzaneh daily. Maintained 99.5%+ crash-free sessions with sub-second cold start and smooth 120fps UI across both platforms through performance profiling and memory optimization, supporting 30,000+ campaign sessions. Owned full delivery lifecycle from design to production release including Dependency Injection, unit testing, and store submission on both platforms.

Lead Mobile Engineer (iOS & Android) at Sara f

May 2, 2023 - July 1, 2026

Directed native mobile architecture paradigms across iOS (Swift, SwiftUI, Combine, MVVM-C) and Android (Kotlin, Jetpack Compose, Coroutines, Flow) for high-scale fintech products while mentoring 6 engineers. Spearheaded end-to-end iOS lifecycle from July 2024 onward, building the AlSaraf iOS application from scratch in Swift/SwiftUI, scaling beta infrastructure to 1,000+ testers via TestFlight, and achieving a 99.2% crash-free user rate on the App Store. Led Android platform scaling from May 2023 onward, pushing the codebase past 1M+ downloads on Google Play and Cafe Bazaar while reducing app crash rates by 27% and increasing DAU by 41%. Architected mobile client-side AI integration using Firebase Vertex AI SDK on Android and OpenAI Swift SDK on iOS, enabling local streaming conversational assistants with structured JSON outputs. Optimized app compute footprint by replacing heavy cloud inference calls with on-device ML pipelines, reducing API latency metrics by 65% and lowering infrast

Lead Mobile Engineer (iOS & Android) at Saraf

May 1, 2023 - July 1, 2026

Directed native mobile architecture paradigms across iOS (Swift, SwiftUI, Combine, MVVM-C) and Android (Kotlin, Jetpack Compose, Coroutines, Flow) for high-scale technical products; mentored 6 engineers. Spearheaded iOS lifecycle from July 2024 onward building the AIsaraf iOS application from scratch in Swift/SwiftUI, scaling beta infrastructure to 1,000+ testers via TestFlight and achieving 99.2% crash-free users on the App Store. Led Android platforms from May 2023 onward, driving a codebase past 1M+ downloads on Google Play and Cafebazaar; reduced application crash rates by 27% and increased DAU by 41%. Architected mobile client-side AI integrations using Firebase Vertex AI SDK on Android and OpenAI Swift SDK on iOS with structured JSON outputs; optimized compute footprint by replacing heavy cloud inference with on-device ML (ODML) pipelines, reducing API latency by 65% and lowering infrastructure costs. Partnered with backend teams on REST API design, built automated CI/CD release

Mobile Team Lead at Sara f MO BILE · PWA · Cross-Platform

May 1, 2023 - Present

Designed and developed clean, minimal, intuitive mobile applications (1M+ downloads, 99%+ crash-free), building end-to-end features and integrating REST backends for reliable data management. Implemented map, media, and event-logging flows, improving accessibility and iterating based on user feedback and testing to ensure reliability and satisfaction. Collaborated directly with non-technical stakeholders to refine requirements, maintained clean and documented code, and mentored 6 engineers. Focused on responsive field-worker UX and trustworthy, reliable app behavior.

Senior Mobile Engineer (iOS & Android) at Gand om

September 1, 2022 - April 30, 2023

Re-architected the iOS (Swift) and Android (Kotlin) applications into modular, stable Clean Architectures using dependency injection, driving a 100% increase in downloads from 100K to over 200K. Reduced crashes by 23%, improved response times by 16%, and decreased memory and resource consumption by 9% through systematic profiling and optimization. Increased DAU by 31% and average session duration by 20% across both platforms, raising average store rating by 0.5 points and driving 25% increase in positive reviews. Collaborated within a 4-member Agile team delivering end-to-end solutions for clients.

Senior Mobile Engineer (iOS & Android) at Gandom

September 1, 2022 - April 1, 2023

Re-architected iOS (Swift) and Android (Kotlin) applications into modular, stable Clean Architectures with Dependency Injection, driving 100% increase in downloads from 100K to 200K. Reduced crashes by 23%, improved response times by 16%, and decreased memory and resource consumption by 9% through systematic profiling and optimization. Increased DAU by 31% and average session duration by 20% across both platforms, raising average store rating by 0.5 points and driving 25% increase in positive reviews. Collaborated in a 4-member Agile team delivering end-to-end solutions for clients.

Senior Mobile Developer at Gandom

September 1, 2022 - April 30, 2023

Re-architected the application into a maintainable, stable, modular structure with minimal UI focus, driving a 100% increase in downloads (100K to 200K). Reduced crashes by 23%, improved response times by 16%, and decreased resource consumption by 9%. Raised average app rating by 0.5 points and increased positive user reviews by 25%. Improved user engagement and performance through stability and modularization work within an agile team.

Mobile Engineer (iOS & Android) at Municipality of Tehran

June 1, 2019 - August 1, 2019

Enabled real-time tracking of waste-collection vehicles on iOS and Android using maps, location services, and Bluetooth-connected devices, increasing operational efficiency by 22%. Optimized collection routes, cutting fuel consumption and operating costs by 17% and saving the district approximately 75M Toman annually. Reduced waste-collection time by 38% through route optimization.

Mobile Developer at Municipality of Tehran

June 1, 2019 - September 30, 2019

Built a map-based field tracking app with real-time GPS/location, logging events and locations on the map for follow-up and operational tracking, increasing operational efficiency by 22%. Implemented section/route optimization on maps, cutting fuel and operating costs by 17% and saving the district about 75M Tomans annually. Focused on field-ready usability and operational tracking reliability.

Senior Mobile Engineer (iOS & Android) at R esaa

April 1, 2019 - July 1, 2022

Championed core VoIP and real-time chat features on both iOS (Swift, UIKit) and Android (Kotlin, Java) using WebSockets and REST APIs, increasing doctor-patient engagement by 38% and improving access to healthcare services. Grew user registrations by 180% within the first six months and sustained average response time under 10 minutes, achieving an 87% user satisfaction rate. Collaborated closely with a 7-member Agile team and partnered with backend teams on API contracts and secured data handling.

Senior Mobile Engineer (iOS & Android) at Resaa

April 1, 2019 - July 1, 2022

Championed core VoIP and real-time chat features on both iOS (Swift, UIKit) and Android (Kotlin, Java) using WebSockets and RESTful APIs. Increased doctor-patient engagement by 38% and improved access to healthcare services. Grew user registrations by 180% in the first six months and sustained average response time under 10 minutes, achieving an 87% user satisfaction rate. Collaborated closely in a 7-member Agile team with backend teams on API contracts and secured data handling.

Mobile Developer at Resaa

April 1, 2019 - July 31, 2022

Built core real-time chat and VoIP features over WebSocket, handling reconnection and reliability concerns and increasing engagement by 38%. Grew user registrations by 180% within the first six months and sustained average response time under 10 minutes. Worked in a 7-member agile team and partnered effectively with the backend team to deliver dependable communication features.

Mobile Engineer (iOS & Android) at Glad Cherry

July 1, 2018 - September 1, 2018

Built a location-based booking application for iOS and Android, growing monthly gross bookings by 140% to 150M Toman per month. Expanded the application to three additional cities, growing the user base by 63% and adding 90M Toman in monthly revenue per venue.

Mobile Developer at Glad Cherry

July 1, 2018 - September 30, 2018

Built a location-based, map-driven booking app, increasing monthly gross bookings by 140% to 150M Tomans per month. Expanded the app to three additional cities, growing the user base by 63%, and added 90M Tomans in monthly revenue. Emphasized map-driven UX to improve conversions and adoption.