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Reuben Bichage

@reubenbichage

Senior Android Developer at Tala who helped launch Vietnam’s app-led lending experience, onboarding 50K customers post-launch.

Kenya

Message

At Tala, I served as an Android consultant for the launch of loan services in Vietnam, helping deliver the market’s first app-led lending experience. The new lending flow onboarded 50K customers post-launch.

I built unit and integration tests for lending flow changes and contributed to Kotlin Multiplatform Mobile library development. These efforts supported reliability, reduced regressions, and improved code reuse.

At Carry1st, I led development of core Shop App features, including Rewards, Payments, Billing, Authentication, Profiles, and Referrals. The app’s daily active users grew from 4,000 to 35,000, while monthly active devices increased from 40k to 400k.

I also reduced ANR incidents by about 82% through performance profiling, startup optimization, and improved network handling. Earlier, I developed Android banking features at Equity Bank Limited and Saudi Digital Bank, and led Android delivery at Proto Energy Limited.

Experience

Work history, roles, and key accomplishments

Senior Android Developer

Tala

Jul 2025 - Jun 2026 (11 months)

Served as an Android consultant leading mobile delivery for the launch of loan services in Vietnam, helping deliver the first app-led lending experience in the market. Partnered with cross-functional teams to align requirements and coordinate execution.

Android Kotlin Kotlin Multiplatform Mobile (KMM)Unit Testing Integration Testing Junit MockK Android Testing

Senior Android Engineer

Carry1st

Nov 2023 - Nov 2025 (2 years)

Led development of core Shop App features including Rewards, Payments, Billing, Authentication, Profiles, and Referrals. Drove cross-functional delivery and scaled daily active users from 4,000 to 35,000.

Android Kotlin Jetpack Compose Architecture Modularization Performance Profiling Crash ANR Reduction AWS API Integration

Senior Android Developer

Equity Bank Limited

Sep 2021 - Sep 2023 (2 years)

Developed and maintained Android banking features in collaboration with backend, product, and QA teams. Improved app quality through disciplined debugging, code reviews, and release support.

Android Kotlin Java Debugging Code Review Release Management Banking Architecture

Android Developer

Saudi Digital Bank

Sep 2022 - Apr 2023 (7 months)

Built and supported Android banking features for customer-facing digital banking experiences. Collaborated with backend, QA, and product teams to deliver secure, stable releases.

Android Kotlin Java Banking Release Management Performance Improvement

Lead Android Developer

Proto Energy Limited

Nov 2020 - Dec 2021 (1 year 1 month)

Led Android delivery for customer-facing and internal mobile initiatives, partnering with cross-functional teams to align scope and deliver on schedule. Owned technical decisions around app architecture and release readiness.

Android Kotlin Java Architecture Release Management Performance Optimization Cross Functional Collaboration