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I am a mobile engineer with 7+ years of experience delivering high-quality applications across Android, Flutter, and React Native. I specialize in building cross-platform and native apps, implementing REST/GraphQL APIs, and integrating cloud services to power scalable products. I focus on secure coding, performance optimization, UI/UX best practices, and CI/CD automation to streamline delivery. I enjoy collaborating with cross-functional teams to ship production-ready features that enhance safety and user experience.…I am a mobile engineer with 7+ years of experience delivering high-quality applications across Android, Flutter, and React Native. I specialize in building cross-platform and native apps, implementing REST/GraphQL APIs, and integrating cloud services to power scalable products. I focus on secure coding, performance optimization, UI/UX best practices, and CI/CD automation to streamline delivery. I enjoy collaborating with cross-functional teams to ship production-ready features that enhance safety and user experience.

Tobibur Rahman

App Developer, Web Developer, Programmer, +2

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I am a mobile engineer with 7+ years of experience delivering high-quality applications across Android, Flutter, and React Native. I specialize in building cross-platform and native apps, implementing REST/GraphQL APIs, and integrating cloud services to power scalable products. I focus on secure coding, performance optimization, UI/UX best practices, and CI/CD automation to streamline delivery. I enjoy collaborating with cross-functional teams to ship production-ready features that enhance safety and user experience.…I am a mobile engineer with 7+ years of experience delivering high-quality applications across Android, Flutter, and React Native. I specialize in building cross-platform and native apps, implementing REST/GraphQL APIs, and integrating cloud services to power scalable products. I focus on secure coding, performance optimization, UI/UX best practices, and CI/CD automation to streamline delivery. I enjoy collaborating with cross-functional teams to ship production-ready features that enhance safety and user experience.

Available to hire

I am a mobile engineer with 7+ years of experience delivering high-quality applications across Android, Flutter, and React Native. I specialize in building cross-platform and native apps, implementing REST/GraphQL APIs, and integrating cloud services to power scalable products.

I focus on secure coding, performance optimization, UI/UX best practices, and CI/CD automation to streamline delivery. I enjoy collaborating with cross-functional teams to ship production-ready features that enhance safety and user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Technical Lead – Senior Android Developer at Harman International

May 31, 2023 - Present

Led Android IVI development using Kotlin, Android SDK, MVVM; improved maintainability and reduced feature delivery time by 20%. Implemented AIDL-based IPC for cross-process communication, improving performance and reliability. Achieved 90%+ unit test coverage with JUnit, Mockito, and Coroutine test dispatchers. Automated releases via GitLab CI/CD + SonarQube, reducing cycle time from 2 weeks to 3 days. Delivered secure cloud-integrated solutions with REST APIs, OAuth2, AWS, reducing vulnerabilities by 30%.

Developer II – Android Engineer at UST Global

August 2, 2021 - March 31, 2023

Built scalable retail & inventory applications with MVVM, Room, and Retrofit; ensured modular design. Integrated Worldnet Payment Gateway with coroutines for secure and reliable transactions. Enhanced API security with token-based authentication and TLS encryption. Promoted feature modularization and dependency injection (Hilt), improving development speed.

Software Engineer - Android at SIQES

July 1, 2018 - July 31, 2021

Developed EduAid (10K+ users), an e-learning app with offline video streaming and gamification. Integrated Razorpay SDK and Socket.IO for payments and live multiplayer quizzes. Boosted engagement by 40% through gamified UX and Material Design. Delivered backend APIs and real-time services with Node.js and Firebase.

Android Developer at Zantrik Technology

July 11, 2017 - June 1, 2018

Built offline-first health survey apps with SQLite; developed dashboards and data sync services, enabling 25% faster case resolution.