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Semiu Hassan

@semiuhassan

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Senior Android Developer with 7+ years of expertise in Kotlin, Java, and delivering top-tier apps.

Nigeria

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What I'm looking for

Looking for a challenging role that leverages my technical expertise and leadership skills to deliver high-quality products and drive innovation.

Seasoned Senior Android Developer | Kotlin & Java Expert | Problem-Solver & Mentor

With over seven years of experience delivering exceptional mobile applications, I specialize in developing and optimizing Android solutions using Kotlin and Java. My expertise spans the full development lifecycle, from ideation to deployment on Google Play, where my problem-solving skills and innovative approach consistently drive impactful results.

I bring proficiency in cutting-edge tech stacks, including Kotlin, Jetpack Compose, JavaScript, and architecture patterns like MVVM, MVP, and MVC. My database expertise includes MySQL, SQLite, Room, Realm, and Firestore, complemented by a deep understanding of tools and platforms such as Jenkins, Firebase, and Fastlane.

Beyond coding, I excel as a mentor and leader, guiding teams to sharpen their technical and soft skills for optimal performance. Passionate about innovation, I stay ahead of industry trends to deliver products that exceed expectations while fostering collaboration and continuous improvement within teams.

Let's build something amazing together.

Experience

Work history, roles, and key accomplishments

Senior Android Developer

Maven Machines

Jan 2020 - Sep 2023 (3 years 8 months)

Led the development of a robust Asset Administration platform managing over 200,000 assets. Implemented real-time notifications with Firebase, and optimized app performance with caching and efficient data flow. Migrated legacy Java code to Kotlin, conducted code reviews and collaborated with teams to enhance scalability and maintainability.

Android Kotlin SQLite AWS Firebase Firestore Retrofit MySQL Dagger 2 Git Jira Atlassian JIRA MVVM Architecture MVP Mindset

Android Developer

Maven Machines

Jan 2018 - Jan 2020 (2 years)

Developed an FMCSA-compliant ELD application, enabling drivers to log activities and stay compliant. Built an equipment inspection system for safety and compliance, and a dispatcher-driver chat system for real-time communication. Integrated Firebase services for analytics and notifications, and optimized app performance by reducing network traffic.

Android Kotlin SQLite AWS Firebase Firestore

Android Developer

Jumia Group

Mar 2017 - Aug 2017 (5 months)

Enhanced app security with Google Smart Lock and Biometric Authentication for seamless user login. Built a personalized search feature and dynamic user dashboard, boosting engagement and retention. Delivered key UX improvements and collaborated with cross-functional teams to align features with business objectives and user needs.

Android Java SQLite AWS

Android Developer

Fivestars

Aug 2016 - Mar 2017 (7 months)

Enhanced app stability, reducing crashes and achieving 99.9% reliability. Integrated A/B testing frameworks to optimize features and boost engagement. Built loyalty reward tracking functionalities and leveraged Firebase tools for analytics and crash reporting to ensure a seamless and reliable user experience.

Android Java SQLite Firebase