Seth Onyango

Seth Onyango

Software Engineer, Fintech, HealthTech, and Mobile App Development

Software Engineer

šŸ‘‹šŸ½ Hello, Iā€™m Seth Onyango

Iā€™m a passionate and detail-oriented software developer with 7+ years of experience building robust, scalable, and user-centric applications.

At SimpleCloudology, I engineered scalable backend systems for healthcareā€”specifically cardiologyā€”using Java, Express.js, and secure architecture principles. I also built custom SDKs and identity workflows that powered seamless integrations with sensitive clinical systems.

At Tingle Software, I led initiatives across mobile (React Native & Expo), backend (Java & Python), and frontend (Next.js). From shipping fast, reliable mobile experiences to building performant full-stack apps, I consistently delivered production-ready software that balanced performance, usability, and maintainability.

Alongside this, Iā€™ve worked on projects in AI and Computer Vision, applying machine learning models to tasks like identity verification, face detection, and intelligent automationā€”often integrating these features into mobile and web platforms.

Whether architecting secure APIs, building responsive UIs, or deploying smart systems, I bring a thoughtful, cross-disciplinary approach to software development.

šŸ’¼ What I Do

  • šŸ“± Mobile Development ā€“ Kotlin, Swift, Jetpack Compose, React Native (Expo). Iā€™ve built feature-rich mobile apps across healthcare, finance, and identity sectors.
  • šŸŒ Frontend Engineering ā€“ Creating seamless user experiences with React, Next.js, and Tailwind CSS.
  • āš™ļø Backend APIs ā€“ RESTful API design using Node.js, Express, and Firebase, with a strong eye for security and performance.
  • šŸ§  Computer Vision & AI ā€“ Built face verification pipelines, real-time detection in mobile apps, and integrated machine learning models for identity verification and automation tasks.
  • šŸ§Ŗ SDK Development ā€“ Authored modular SDKs for mobile and web integrations, focusing on developer experience and scalability.
  • šŸ¤ Remote Collaboration ā€“ Thriving in async, distributed teams, communicating with clarity, and shipping features with autonomy.

šŸ”¬ Highlight: AI & Computer Vision

Iā€™ve worked on cutting-edge face detection and liveness verification features in mobile apps, combining TensorFlow Lite, OpenCV, and platform-specific camera APIs (like CameraX on Android). I also collaborated on identity workflows that leverage ML models to assess selfie quality, perform document OCR, and streamline KYC compliance for digital onboarding.