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Md Moontasirul Islam

Available to hire

Hi, I’m Md Moontasirul Islam, a Senior Android Engineer with 10+ years of hands-on experience delivering secure, scalable mobile solutions for fintech and consumer apps.

About

Hi, I’m Md Moontasirul Islam, a Senior Android Engineer with 10+ years of hands-on experience delivering secure, scalable mobile solutions for fintech and consumer apps. I specialize in Kotlin, modern Android architectures (MVVM, Jetpack Compose), mobile security, CI/CD automation, release engineering, and cross-functional technical leadership. I’m passionate about building high-performance apps, reducing technical debt, and mentoring mobile teams to ship reliable features quickly.

In my work, I collaborate closely with product, UX, and backend teams to design resilient APIs, optimize user experience, and drive data-driven improvements. I value clean code, proactive QA, and secure coding practices that protect users and business interests.

  • 10 years' experience
  • Joined December 2025

Languages

  • EnglishAdvanced
  • JapaneseBeginner

Industry experience

  • Software & Internet
  • Financial Services
  • Professional Services
  • Media & Entertainment
  • Other

Work experience· 5 roles

Principal Software Engineer – Android · Ascend MoneyMar 2023 – Present · 3 yrs 9 mos

Led Android development for multi-country app deployments using a unified Kotlin codebase, accelerating release cycles and reducing regional maintenance overhead. Architected and improved mobile infrastructure (modularization, scalable data layers, optimized build pipelines). Strengthened fintech-grade security by implementing Play Integrity API, root/jailbreak detection, anti-debugging, and secure coding practices — reducing vulnerability reports by 40%. Collaborated with backend teams to design high-performing REST APIs, improving request efficiency and reducing app/server communication failures. Reduced backlog bugs from 300+ to <100 by leading structured triaging, crash analytics reviews, and automated regression verification.

Senior Software Engineer – Mobile App · JRF Intelligence LimitedOct 2021 – Feb 2023 · 1 yr 5 mos

Led an international team to deliver secure and scalable global remittance and payments apps across multiple regions. Designed and built a cross-platform Kotlin/Flutter architecture, reducing development and maintenance costs by ~30%. Enforced secure coding standards and compliance frameworks, improving app reliability and reducing fintech audit issues. Implemented CI/CD pipelines and automated release workflows, shortening QA-to-release cycles by 50%. Partnered with backend teams to design REST APIs focused on performance, resiliency, and ease of integration for mobile clients. Boosted user engagement by collaborating with Product/UX to refine flows using analytics-driven insights.

Senior Software Engineer – Android · DreamOnline LimitedSep 2019 – Sep 2021 · 2 yrs 1 mo

Developed Android apps for smartphones and smartwatches using Kotlin, Java, MVVM/MVP, and RESTful APIs (Google Fit, Fitbit, Firebase). Built scalable core architecture and reusable components for cross-device and multi-platform compatibility. Improved performance through memory analysis, screen fragmentation support, and end-to-end optimization. Collaborated with UI/UX and QA teams to deliver user-friendly, high-quality apps across Android and iOS platforms. Recognized as Best Developer and Best Team Player for outstanding contributions.

Android Engineer · Atom AP LimitedNov 2016 – Aug 2019 · 2 yrs 10 mos
Android Developer · Twister Media Technology LimitedFeb 2016 – Oct 2016 · 9 mos

Education

Master of Science in Information Technology · Jahangirnagar University, Savar, Bangladesh2020
Bachelor of Science in Computer Science & Engineering · National University, Gazipur, Bangladesh (under Dhaka City College, Dhaka)2013
Higher Secondary Certificate in Science · Kurigram Govt. College, Kurigram, Dinajpur Board2009
Secondary School Certificate in Science · Kurigram Govt. High School, Kurigram, Rajshahi Board2006

Certifications and awards

PROFESSIONAL SCRUM MASTER I (PSM I)2030 – 2025

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