Mohsin S

Android Team Lead

AmexHub • Full-time

Jul 2024 - Present • 1 yr 10 mos

‣ Revamped the entire UI and architecture of the Novus Smart Switch application, leading to a 30% increase in user engagement time and a 95% reduction in crash and ANR rates. The app serves an active user base of over 2 million. ‣ Implemented a screen-sharing feature in the ShareGo application using Jetpack Compose and WebRTC. Currently responsible for ongoing maintenance and optimizations. ‣ Redesigned core features of a cloud storage application from scratch, revamped the UI, and reduced technical debt, resulting in an 80% increase in in-app purchases. ‣ Implemented A/B testing in top-performing applications, leading to a 30-40% average increase in revenue and in-app purchases. ‣ Managed and collaborated on a VPN application utilizing the WireGuard protocol, successfully leading it into production. ‣ Implemented effective ad and monetization strategies, boosting ad show rates by 20-25%, resulting in a significant revenue increase.

Senior Android Developer

SOFIT • Full-time

Dec 2022 - Jul 2024 • 1 yr 7 mos

‣ Developed the MVP of an in-house alternative to Microsoft Teams from scratch. Collaborated closely with the backend team, leading to optimizations that reduced overall costs by 70%. ‣ Developed a True Caller ID application from scratch using the latest Android technologies, following the MVVM architecture pattern alongside essential Jetpack libraries. Leveraged tools like Room, Navigation Components, and ViewModels to build and successfully launch the product into production. ‣ Refactored existing Java products to Kotlin, enhancing the codebase with Clean Architecture principles. Implemented new features and optimizations, leading to a 60% increase in user engagement. Focused on stability and performance, achieving a 99.9% crash-free rate across a user base of millions. ‣ Led many capacity building sessions for the android team to facilitate learning of best coding techniques.

Android Developer

Pacsquare Technologies • Full-time

Mar 2021 - Dec 2022 • 1 yr 9 mos

‣ Developed and launched the AGTCrypto platform for Android from scratch within a record time of one month. Utilized Kotlin, RxJava, Retrofit, and sockets to build complex core features, while implementing RSA encryption at the network layer to ensure data security and integrity. ‣ Designed and developed the PacEquity stock broker application for Android from scratch, guiding it through the entire software development lifecycle to production. Utilized MVVM, RxKotlin, and HILT while implementing complex mathematical calculations and optimizing performance with Kotlin Coroutines. ‣ Developed an Android application for clinicians to diagnose depression, anxiety, and substance abuse. Implemented real-time user tracking with background/foreground services, Firebase Realtime Database, offline storage with Room, and secure network-layer authentication. ‣ Revamped the UI of the MindHelp application and implemented critical fixes in the video and audio chat module using Twilio SDK. These improvements led to a 40% increase in user retention and a 90% reduction in crash rate. ‣ Developed a CMS for an American construction company to digitize operations, enabling efficient project management and tracking.