Muhammad Usman

Android Engineer · Remote

Core Responsibilities

• At Lopos, I play a pivotal role in developing the Lopos Alert App (Android and IOS), a cutting-edge solution for configuring Lopos Inc.'s flagship products. This app seamlessly scans and updates the firmware of BLE devices, including Beacons and Wearables, ensuring optimal performance and user experience.

Key Technologies & Tools Used:

• Architecture: MVVM
• Dependency Injection: Hilt
• UI Development: Jetpack Compose (Material You)
• Authentication: Auth0
• Core Functionality: Bluetooth, BLE
• Data Handling: Retrofit with OkHttp3, Encrypted Data Storage
• Testing: Unit Testing, Truth for Assertions
• Version Control: GitLab

Full Stack Engineer · Remote

Core Responsibilities

• At Armour Payments, I am leading the development of a cutting-edge donation collection application, leveraging the latest Android technologies to deliver a seamless and efficient user experience. This application is designed to streamline the donation process, ensuring security, performance, and ease of use.
• I focus on creating a robust architecture, ensuring code quality through extensive testing, and optimizing performance for a wide range of devices.

Key Technologies & Tools Used:

• UI Development: Jetpack Compose, Material3, ConstraintLayout
• Navigation & Lifecycle: Navigation Compose, Lifecycle KTX, ViewModel Compose
• Networking & Data Handling: Retrofit, OkHttp, Gson, DataStore Preferences
• Testing & Debugging: JUnit, Espresso, Timber, UI Testing with Jetpack Compose
• Animation & Graphics: Lottie Compose, Coil, Glide
• Startup & Splash Screens: AndroidX Startup, Core Splashscreen
• Payment Processing & Utilities: Credit Card Helper, ESCPOS Thermal Printer, XML to JSON
• Cloud Services: AWS SES for email integration

Android Developer · Remote

Core Responsibilities

• Maintain and improve coding standards across the team, taking part in code reviews for other developers
• Making the user data privacy Compliance with CCPA/GDPA Regulations
• Collaborating with quality engineers, user research, design, and support teams to ensure quality in all phases of app development.
• Reviewing design specs and engineering docs and provide feedback.
• Migrating to Clean Architecture(data-domain-presentation) using MVVM
• Securing data in transit using RSA/AES protocols

Key Achievements

• Defined and implemented robust app architectures and complex user interfaces.
• Migrated from RxJava to Kotlin Coroutines
• Migrated from Imperative UI to Declarative (Compose UI)
• Worked with BLE and connected devices.
• Implemented the Crypto SDK for URA's Efris platform
• Managed tasks within the Agile framework, cleared Sprinted tasks and controlled JIRA workflows.

Senior Android Developer

Core Responsibilities

• Translating the designs and wireframes into high-quality code.
• Mentoring/advocating junior developers.
• Migrating the code base to Kotlin Clean architectures (MVVM, MVP)
• Reviewing Peer's code.
• Collaborating with cross-functional teams to define and design new features.
• C++ with NDK integrations
• Executing Unit tests and automatic UI testing using Espresso on code for robustness, usability, and general reliability.
• Writing unit tests for mobile code and debugging critical application issues such as crashes, memory leaks, and concurrency problems.

Key Achievements

• Implemented Clean Architecture using Hilt and Jetpack architecture components.
• Integrated IRIS scanner using USB Host mode.
• Developed attendance system using a fingerprint scanner.
• Integrated a variety of Bluetooth printers for POS/Bus Ticketing solutions.
• Developed a 'Patients referral system' for Govt health department.
• Developed TV Apps, SMS gateway, media apps, location-aware apps, etc.

Android Developer/Junior Web Developer/Mentor

Core Responsibilities

• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Assisting in compliance with standards.
• Obfuscating/optimizing the code using Dexguard.
• Implementing the Frontend of courier's solutions using front-end tech stacks

Key Achievements

• Developed 'Smart Home' Home automation App linked with IoT Module (ESP8266)
• Architecture and developed Courier solutions from scratch (Mobile+Web).
• Taught how to write, solid, scalable, well-documented, and bug-free code.
• Developed call recording, Warehouse management app.
• Developed NFC-based student attendance system for a school
• Cloned and customized open-source messaging app and shipped with a different brand name.

University of Gujrat

GPA: 3.13