I am currently building Haeru, a life-story companion app designed to help users see their growth and feel their life as a narrative.

As the architect, I designed a distributed system using Gleam for the platform service and Python for the 'Brain' service, all orchestrated via Nix for strictly reproducible infrastructure.

I engineered a Zep-like memory layer and an autonomous reflection pipeline, utilizing RabbitMQ to orchestrate a scalable fleet of background workers that generate daily reflections and weekly postcards.

Consulted for OCBC Bank, engineering new features for their high-traffic consumer and business mobile banking applications.

Contributed to the fullstack development of a critical healthcare portal using Next.js, building both frontend and backend components to enhance functionality.

Drove a strategic Android platform rewrite (Kotlin/Jetpack Compose) after successfully proposing the initiative with data-backed analysis. This overhaul raised the Play Store rating from 2.7 to 4.7 and reduced crash rates by over 90%.

Simultaneously led the complete rewrite of the merchant-facing application from React Native to native Android, significantly improving maintainability and merchant satisfaction.

Architected and maintained backend features for legacy PHP systems and modern AWS Lambda microservices, while also supporting the iOS consumer app.

Designed a highly efficient surge pricing algorithm and conceptualized the end-to-core software architecture for both the backend and mobile ecosystems.

Developed both the Owto (Passenger) and Owto Driver applications, implementing realtime features like driver tracking, trip live streaming, and dynamic fare calculation.