Senior iOS engineer with 10+ years building apps across Apple retail, fintech and e-commerce, plus published App Store products. Former lead of a 10-engineer iOS team. Focused on modular architecture, test automation, security and performance.
📍 Austin, TX · 🇺🇸 U.S. Permanent Resident ·
- 🍎 Currently: Senior iOS Engineer experienced in API integration, XCUITest framework development, CI/CD, and release validation.
- 🧪 Test automation: helped cut regression testing time by 90% by expanding UI automation across internal iOS apps.
- 🤖 AI-forward: prototyped LLM-powered visual regression testing that reached 85% precision across tested flows.
- 👥 Leadership: led a 10-person iOS team at Greenlight Financial Technology, covering estimation, architecture and sprint delivery.
- 📚 Learning: Machine learning, Computer vision and image processing, AI, System Design.
| Languages | Swift, Objective-C, Python, JavaScript, Java, C/C++, SQL |
| iOS | SwiftUI, UIKit, Combine, Swift Concurrency, Core Data, Core Animation, Core ML, ARKit, HealthKit, HomeKit, MapKit, Metal, SpriteKit, SceneKit, AVFoundation, Realm |
| Architecture | MVVM, VIPER, Modular / feature-based architecture, SOLID, Dependency Injection, Repository, Coordinator |
| Testing & CI/CD | XCTest, XCUITest, WireMock, TDD, Fastlane, Bitrise, Instruments, Swift Package Manager, CocoaPods |
| Security | Keychain, SSL pinning, AES encryption, OAuth, biometrics, HTTPS |
| Backend & DevOps | REST APIs, Django REST Framework, PostgreSQL, Docker, Kubernetes, Linux, AWS |
| AI & productivity | Claude Code, Cursor, Codex, agentic AI, MCP, ML fundamentals, NumPy, SciPy, Polars, scikit-learn, TensorFlow |
- Slideshow Maker – Video Music FX
- Photo Collage Layout
- Document Scanner – Scan PDF
- Chat AI – Advanced Assistant
- QR Code Generator
- Invoice Maker
- Photo Editor
B.Sc. in Computer Science & Engineering, Khulna University of Engineering and Technology, Bangladesh (2012 – 2016)
Open to Senior / Staff iOS roles. Reach me at muhammad.mamun1107@gmail.com.