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Evans Kimanthi

@evanskimanthi

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Senior Android and React Native developer specializing in mobile AI and scalable cross-platform apps.

Kenya

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What I'm looking for

I seek senior mobile roles where I can build scalable Android/React Native products, apply on-device ML, mentor teams, and drive CI/CD and quality-focused delivery.

I am a Senior Mobile Application Developer with 7 years of experience building native Android and cross-platform React Native applications, focused on robust architecture, Material Design, and high-quality user experiences. I have led projects serving hundreds of thousands of users, integrated on-device AI with TensorFlow Lite, and implemented high-throughput mobile payment solutions such as M-Pesa.

I combine deep Android expertise (Kotlin, Jetpack Compose, Coroutines, Room) with Python-based backend and machine learning skills to deliver end-to-end mobile solutions. I prioritize testing, accessibility, and performance — establishing CI/CD pipelines, achieving strong code coverage, and optimizing apps for low-connectivity environments and regional requirements.

Experience

Work history, roles, and key accomplishments

Senior Android Developer

Safaricom PLC

Jan 2023 - Jul 2024 (1 year 6 months)

Architected and developed native Android apps using Kotlin and Jetpack Compose serving 500K+ active users and achieving 4.5+ Play Store ratings; integrated M-Pesa payments processing 100K+ monthly transactions with 99.9% success and reduced ANR errors by 65%.

Kotlin Jetpack Compose Coroutines ROOM Retrofit Tensorflow Lite M Pesa Integration Junit Espresso

Mobile Application Developer

Twiga Foods

Mar 2021 - Dec 2022 (1 year 9 months)

Developed cross-platform React Native and native Android apps for marketplace and supply chain features serving 8,000+ vendors, reducing development time by 40% and implementing offline-first Room caching for low-connectivity environments.

React Native TypeScript Kotlin MVVM Hilt ROOM Apollo GraphQL Fastlane

Android Developer & Python Engineer

BRCK (Moja)

Jun 2019 - Feb 2021 (1 year 8 months)

Built Android apps with computer vision features using ML Kit/OpenCV and developed Python backend services (Flask/Django) and data pipelines that increased user engagement by 25% through analytics-driven product improvements.

Kotlin OpenCV ML Kit Tensorflow Lite Python Flask Django Pandas Gradle

Junior Android Developer

iHub Nairobi

Jul 2018 - May 2019 (10 months)

Developed Android features in Kotlin/Java for startup projects, implemented unit tests and CI best practices, and contributed to SDK integrations and developer community mentorship within the hub.

Kotlin Java Android SDK Junit Git Espresso

Education

Degrees, certifications, and relevant coursework

Dedan Kimathi University of Technology

Bachelor of Science, Electrical and Electronics Engineering

Completed a Bachelor of Science in Electrical and Electronics Engineering, graduating in April 2018 with coursework relevant to hardware-software integration and embedded systems.