Osama Khattak

Skilled Senior Android Developer with 5+ years of experience in high-performance, scalable app development. Proficient in Java, Kotlin, and Python, with strengths in UI/UX, system architecture, and AI-driven features. Known for optimizing app performance, enhancing user engagement, and successfully leading collaborative projects.

Senior Android Developer at Innovative Inside (2025-07 – Present)

• Engineered remote-configurable ad system with full server-side control over logic and placement, improving per-user ad efficiency by ~65%.
• Rewrote legacy ad implementations to eliminate dead code, optimize rendering, and ensure lifecycle-safe integrations across the app.
• Built AI-powered data processing and assistant modules via OpenAI APIs with Room DB and coroutine-backed repository pattern.
• Applied Clean Architecture with MVVM, Fast Networking Library, Kotlin Coroutines, and Flow to ensure scalable and testable codebases.
• Conducted code reviews, mentored peers, and drove architectural improvements for performance and maintainability.

Android Engineer at Funprime Technology (2022-11 – 2025-03)

• Implemented Firebase Remote Config for dynamic app behavior without need of publishing updates.
• Optimized Google Ads integration, leading to a 40% revenue increase.
• Improved app performance by reducing response times by over 70%.
• Leading a team of 3 developers, 2 ASO, 1 Ui/Ux Designer and 1 QA, assigning tasks and ensuring timely project completion.
• Conducted code reviews to maintain code quality, scalability, and best practices.
• Advised on architectural patterns to improve app performance and maintainability.
• Provided guidance to the UI/UX designer for an enhanced user experience.
• Collaborated with the ASO team to optimize app visibility and organic user growth.
• Contributed to improving app ratings and user engagement through strategic leadership.
• Reduced app crash rate by 90% through optimized memory management.

Android Developer at Dev Logix (2020-05 – 2022-11)

• Designed, developed, and maintained scalable Android applications using Java/Kotlin.
• Integrated Firebase Authentication, Realtime Database, FCM notifications, RESTful APIs and third-party integrations for seamless app functionality.
• Analyzed and translated project requirements into technical specifications.
• Migrated applications to AndroidX, ensuring compatibility with Play Store policies.
• Optimized application performance by identifying and resolving bottlenecks.
• Collaborated with cross-functional teams to enhance app features and user experience.
• Assisted in developing and maintaining Android applications, ensuring high performance and responsiveness.
• Worked closely with senior developers to implement app features and troubleshoot issues.
• Gained hands-on experience with API integrations, UI/UX improvements, and debugging techniques.
• Learned best practices in mobile security, performance optimization, and code versioning (Git).

BSc in Software Engineering – University of Science and Technology Bannu, KPK (2016 – 2020)

FSc in Pre Engineering – PEF University College Peshawar (2014 – 2016)