Hi, I'm
Skills & Expertise
Key technologies and tools I work with to build amazing digital experiences
iOS
8 skills
UIKit
11+ years
Concurrency (Actors & GCD)
10.5+ years
Core Data
9.5+ years
XCTest
9+ years
Swift
8.5+ years
SwiftUI
5+ years
Async/Await
5+ years
Combine
4.5+ years
Practices & Methodologies
4 skills
Code Review
9.5+ years
Agile Scrum
8.5+ years
Unit Testing & Automation
8+ years
Mentorship
4+ years
Architecture
4 skills
MVVM
9+ years
MVVM-C
9+ years
SOLID Principle
6.5+ years
TCA
4+ years
Android
4 skills
Kotlin
7.5+ years
Coroutines
7+ years
Jetpack Compose
3+ years
Android Profiler
2+ years
Cross Platform
2 skills
Kotlin Multiplatform
2.5+ years
Flutter (Dart)
2+ years
Featured skills (22)
Current Role
My current position and professional focus
Current
Senior Mobile Architect | DevRel
Storyblok GmbH•Remote
Jul 2024 - Present
- Built cross-platform SDKs in Swift (iOS) and Kotlin (Android) using SwiftUI, Combine, Jetpack Compose, and Coroutines — reduced SDK integration time by 60% across 100+ client apps.
- Implemented TCA, MVVM, and MVI architectures, improving maintainability, test coverage, and adoption across engineering teams.
- Created 5+ developer tools and sample apps (3 SwiftUI, 2 Compose), cutting developer onboarding time and support requests by 40%, and driving 20% monthly SDK adoption growth.
- Set up CI/CD pipelines with Fastlane, Cocoapods, Gradle, and GitHub Actions — release cycles became 30% faster and deployments more reliable.
- Applied TDD with JUnit, Espresso, and XCTest, raising release stability and overall product quality.
- Authored 100+ pages of technical documentation and API guides, reducing developer support tickets by ~40%.
- Collaborated with product teams and open-source contributors to maintain feature parity and consistency across platforms.
- Worked with data teams to propose unified approaches for mobile storage and processing algorithms, aligning directly with backend systems.
- Promoted open-source adoption and developer community engagement, increasing SDK usage and ecosystem contributions.
Education
Academic background and qualifications
Master of Science
The University of Texas at Arlington
Computer Science
Sep 2014 - May 2016
- Studied Advanced Software Engineering & Neural Networks.
- Mastered in Machine Learning, Data Mining and Big Data.
- Thesis on Mobile Profiling Data Analysis.
Bachelor of Engineering
Bangladesh University of Engineering & Technology (BUET)
Computer Science & Engineering
Jan 2006 - Dec 2010
- Studied Digital Designs, Algorithms, Data Structures, Databases, Compilers, Operating Systems etc.
- Worked mostly on Algorithms and Data Structures in this phase of life
- Solved 272 ACM problems
Featured Projects
Showcase of my recent work and contributions
Zalando - iOS Payment SDK
SDK
Developed and optimized Zalando’s native iOS Payment SDK, enabling millions of secure e-commerce transactions monthly while improving checkout performance and conversion reliability across multiple consumer apps.
Swift
RxSwift
UIKit
+6
Lotto24 - iOS
App
Contributed to Lotto24’s iOS platform—modernizing its architecture, improving testability, and delivering a faster, more accessible lottery experience for millions of users in Germany.
Swift
UIKit
SwiftUI (selected screens)
+10
Uber - iOS
App
Worked on the Uber iOS rider app, contributing to large-scale UIKit features, improving GPS accuracy, and optimizing background performance across tens of millions of users worldwide.
Objective-C
Swift
UIKit
+4
Recent Write-ups
Latest insights and technical writings
iOS Development
15 min read
COW Optimization in Swift: The Performance Secret Behind Arrays and Strings
Understand why Swift uses copy-on-write in Array, Dictionary, String, Data, and learn how to implement it safely in your own value types for production apps.
Nov 8, 2025
Problem Solving
The Race for Pi: How Supercomputers Compute Trillions of Digits
This article is hosted on Medium. Click to read the full content.
Oct 23, 2025
iOS Development
Understanding CRDTs and LWW with Swift: A Deep Dive
This article is hosted on Medium. Click to read the full content.
Oct 23, 2025