Serge Théodore Diame

I’m a mobile engineering leader and tech lead focused on building scalable, maintainable apps through clean architecture, strong code quality, and engineering standards.

At Paynah since June 2024, I lead and mentor a cross-functional team of 3 mobile engineers, shaping how we develop through code reviews, technical excellence, and an engineering-first mindset in a ntech context.

I own the mobile frontend architecture for B2B/B2C apps in Flutter using the BLoC pattern and Clean Architecture within a monorepo, ensuring scalability, performance, and long-term maintainability. On the Android side, I’ve overseen POS deployments and integrated French Mobile Money, NFC, push notifications (cloud messaging APIs), and banking payment solutions.

I also drive a DevOps culture by implementing CI/CD pipelines (GitHub Actions) and automated testing, while actively reducing technical debt to improve reliability and development velocity. Previously, I refactored Android apps into Kotlin/Kotlin Multiplatform using Clean Architecture, MVVM/MVI, and Compose, and I’ve supported recruitment, onboarding, and R&D to evaluate emerging mobile technologies for product roadmaps.