iOS / Apple Platforms
Swift · SwiftUI
Mohammed
Rokon Uddin
Senior Software Engineer II, Mobile
I craft Apple-platform products used by tens of millions — with a decade of Swift and Clean Architecture craft, growing range across Flutter and Android, and an AI-first approach to how I build.
MRU
10+ yrsexperience
GMT+6Dhaka, Bangladesh 🇧🇩
Core stack
Swift
SwiftUI
The Composable Architecture
Clean Architecture
Flutter
Kotlin
AI-First Development
01
About me
I'm a Senior Software Engineer II, Mobile with 10+ years of experience building and scaling Apple-platform products used by tens of millions of people, including an app serving over 20 million monthly active users. Native iOS (Swift, SwiftUI) is home base, backed by hands-on cross-platform range across Flutter and Android.
I care as much about user experience as I do about clean architecture — shipping software that feels fast, intuitive and reliable. I'm also an AI-first developer, with agentic coding workflows built into how I ship software day to day.
20M+
Monthly active users
3
Platforms in toolkit
Focus
Clean ArchitectureAI-First DevPerformanceMentorship
Currently
Specialized Engineer I
Brain Station 23 · leading a mobile engineering team of 34
02
Platform expertise
Apple platforms first, with real cross-platform range — ordered by depth.
Flutter
Dart · Bloc / Riverpod
Android
Kotlin · Native
Kotlin Multiplatform
Shared business logic
Apple core
SwiftSwiftUIUIKitCombineRxSwift
Architecture
TCAClean ArchitectureMVVM-CModular Design
Cross-platform
FlutterDartKotlinKMP
Flutter ecosystem
Bloc / CubitRiverpodGetXDioProvider
Data & performance
CoreDataSwiftDataRealmGCDSwift Concurrency
Testing
XCTestTDDSnapshot TestingUI Testing
AI & productivity
ChatGPTClaudeAgentic CodingAutomated Refactoring
Tools & CI/CD
GitSPMCocoaPodsGitHub ActionsXcode CloudBitbucket
03
Selected work
20M+ MAU
MyGP (Grameenphone) iOS App
Brain Station 23Contributed to a large-scale iOS app serving 20M+ monthly active users — cut API latency by ~35–45%, improved launch/screen load time by ~4×, and raised crash-free sessions from ~96% to 99%+.
SwiftStructured ConcurrencyClean Architecture
Real-time
Museum of the Future (MOTF)
Monstarlab Bangladesh Ltd.Interactive iOS app with real-time indoor positioning (BlueGPS), architected with TCA + Clean Architecture — modularized with SPM for ~30–40% faster development velocity.
TCAClean ArchitectureBlueGPS
App Store
PixPerfect – Inpaint with AI
IndependentOn-device AI photo editor for object removal using Core ML and Vision — freehand brush, lasso, AI object detection and background reconstruction. Privacy-first: no uploads, no account.
Core MLVisionOn-device
App Store
CleanShot – AI Photo Cleaner
IndependentOn-device photo-cleanup app detecting duplicates, similar images, screenshots and blurry photos, with bulk cleanup and full-screen review.
Core MLPrivacy-firstSwift
App Store
QuranWords: Flashcard
IndependentMultilingual vocabulary-learning app using frequency-ranked Quranic vocabulary, spaced repetition, word-level audio and six quiz modes — supporting eight app languages.
Spaced RepetitionLocalizationSwiftUI
04
Experience & recognition
2024 — Now
Brain Station 23
Dhaka, Bangladesh
Specialized Engineer I
Oct 2024 — Present
- Leading a mobile engineering team of 34 engineers, driving architecture, delivery and engineering excellence across projects
- Re-architected a legacy iOS codebase using Clean Architecture, improving modularity, maintainability and testability
- Achieved ~4× faster app load time by adopting Swift Structured Concurrency and optimizing async workflows
- Standardized code quality using SwiftLint & SwiftFormat, reducing review cycles and improving consistency
- Defined scalable system architecture and mentored engineers, strengthening long-term product and team growth
2017 — 2024
Monstarlab Bangladesh Ltd.
Dhaka, Bangladesh
Senior Software Engineer II
Jun 2017 — Jun 2024
- Contributed to and scaled a mobile engineering team of 16 engineers, delivering multiple high-impact iOS applications
- Introduced TCA, Clean Architecture and MVVM-C, improving code maintainability and development velocity
- Drove adoption of modern iOS technologies, reducing technical debt and improving scalability
- Improved app stability and performance by identifying bottlenecks and optimizing critical flows
- Mentored developers and enforced engineering best practices across teams
🏆
The Mountain Mover of Monstarlab
Monstarlab Bangladesh Ltd. · 2020
🏅
Imagine Cup National Champion
Microsoft Bangladesh · 2014
✍️
Technical Writer
8 published articles on Medium
🎓
B.Sc. in CSE
American International University – Dhaka · 2015
05
Writing
Technical posts on the Swift and iOS problems I actually run into.
Fintech iOS App Security: A Complete Engineering Guide from TLS to the Secure Enclave
Debouncing and Throttling in Swift: A Journey of Refinement
Swift Optional: Custom Operators for Safe Unwrapping
Step into Swift Combine
Swift: From Protocol to AssociatedType, then Type Erasure
iOS Custom UIView from XIB
TableView Prefetching DataSource
