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Evans Chepsiror

@evanschepsiror

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I am a Senior Android engineer specializing in Kotlin, KMM, and scalable mobile architectures.

Kenya

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What I'm looking for

I seek senior mobile engineering roles where I can lead Kotlin/Android projects, build scalable user-focused apps, improve CI/CD and testing, and work in collaborative, product-driven teams.

I am a Senior Android engineer with a track record of delivering large-scale, user-facing mobile features, most recently planning and developing a consolidated One App that unifies previously separate apps with millions of downloads and integrating a Data Usage API to increase user transparency and trust.

I build cross-platform Kotlin Multiplatform solutions and drive Android rewrites focused on improving user experience; I have shipped KMM features, refactored for efficiency with Room caching, conducted A/B tests to move web views to native, and implemented key logging and analytics to inform product decisions.

I also create native networking and caching libraries, introduce robust unit testing, and automate workflows using GitHub Actions to speed deployments; I contribute to open-source (Droidcon Kenya) and hold a BSc in Computer Science, bringing both engineering discipline and community-minded development to teams.

Experience

Work history, roles, and key accomplishments

Current

Senior Android Engineer

Current

Safaricom PLC

Apr 2024 - Present (1 year 4 months)

Planned and developed the 'One App' to consolidate MySafaricom and M‑Pesa user journeys (5M+ and 10M+ downloads), delivering Bonga Points, data bundle purchase and balance viewing; integrated the Data Usage API to increase transparency and address perceived data-bundle theft.

Android Kotlin RESTful APIs Jetpack Firebase CI CD

Senior Android Engineer

Plume Design, Inc.

Oct 2021 - Mar 2023 (1 year 5 months)

Developed Kotlin Multiplatform features reused on Android and iOS and contributed to an Android app rewrite to improve user experience while soliciting in-app and Play Store feedback.

Kotlin Multiplatform Kotlin Android iOS RESTful APIs Unit Testing Git app store

Senior Android Engineer

StubHub

Jun 2022 - Nov 2022 (5 months)

Refactored the Android codebase to add Room caching for improved performance, migrated features from web views to native views via A/B testing, and implemented key logging to capture user metrics.

Android Kotlin ROOM A B Testing Analytics Performance Optimization Git

Android Engineer

Kyosk Digital Services Limited

Mar 2020 - Nov 2021 (1 year 8 months)

Built native networking and caching libraries that improved developer productivity, introduced testing practices to enhance stability, and automated deployments using GitHub Actions.