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I am a Senior Android Engineer with 8+ years of experience designing and delivering scalable mobile applications in fintech and telecommunications domains. I have a proven track record building payment gateway systems, digital financial services, and large-scale consumer apps serving 10M+ users. I excel at solving performance and reliability challenges, delivering production-ready features, and collaborating with cross-functional teams to drive impactful outcomes for fintech and telecom ecosystems.…I am a Senior Android Engineer with 8+ years of experience designing and delivering scalable mobile applications in fintech and telecommunications domains. I have a proven track record building payment gateway systems, digital financial services, and large-scale consumer apps serving 10M+ users. I excel at solving performance and reliability challenges, delivering production-ready features, and collaborating with cross-functional teams to drive impactful outcomes for fintech and telecom ecosystems.

Ahidul Islam

App Developer, Web Developer, Game Developer, +2

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I am a Senior Android Engineer with 8+ years of experience designing and delivering scalable mobile applications in fintech and telecommunications domains. I have a proven track record building payment gateway systems, digital financial services, and large-scale consumer apps serving 10M+ users. I excel at solving performance and reliability challenges, delivering production-ready features, and collaborating with cross-functional teams to drive impactful outcomes for fintech and telecom ecosystems.…I am a Senior Android Engineer with 8+ years of experience designing and delivering scalable mobile applications in fintech and telecommunications domains. I have a proven track record building payment gateway systems, digital financial services, and large-scale consumer apps serving 10M+ users. I excel at solving performance and reliability challenges, delivering production-ready features, and collaborating with cross-functional teams to drive impactful outcomes for fintech and telecom ecosystems.

Available to hire

I am a Senior Android Engineer with 8+ years of experience designing and delivering scalable mobile applications in fintech and telecommunications domains. I have a proven track record building payment gateway systems, digital financial services, and large-scale consumer apps serving 10M+ users.

I excel at solving performance and reliability challenges, delivering production-ready features, and collaborating with cross-functional teams to drive impactful outcomes for fintech and telecom ecosystems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Language

Javanese

Advanced

Work Experience

Senior Software Engineer (Android) at Grameenphone Ltd

March 1, 2025 - Present

Developed and maintained Android applications serving 2M+ active users. Improved app performance by ~20–30% through memory and rendering optimizations. Designed background processing systems improving sync reliability by ~25%. Reduced crash rate by ~15–20% with debugging and stability fixes. Delivered scalable mobile features in collaboration with 10+ cross-functional teams (backend, QA, product).

Senior Software Engineer at RedDot Digital Ltd. (Robi Axiata)

August 1, 2021 - March 1, 2025

Built and maintained Android applications serving 10M+ users across Robi and Airtel ecosystems. Improved API efficiency and reduced network usage by ~15%. Reduced app crash incidents by ~20% through production debugging and fixes. Delivered the enterprise retail platform (Red Cube) improving operational efficiency for 1000+ retailers. Increased app stability through architecture refactoring (MVVM + Clean Architecture). Collaborated with 15+ engineers across product, backend, QA in Agile environment.

Software Developer (Android) at Walletmix Ltd.

January 1, 2018 - August 1, 2021

Developed Payment Gateway SDK used for processing 1M+ monthly financial transactions. Built secure payment flows with 99.9% transaction reliability. Reduced payment processing latency by ~20% through API optimization. Supported Android and iOS payment ecosystem integration for merchant applications. Resolved 200+ production issues related to financial transactions and system stability.