Born in 1997. Raised in a small town in VietNam. Been hard at work since 2016.

Hi! I'm Phát Trần - Harold, I'm a highly skilled mobile app developer and engineering leader with over 6 years of experience delivering products across Vietnam, Korea, Japan, and North America. I have built and shipped 50+ mobile applications using React Native and Flutter, turning product ideas into scalable, user-centric experiences with strong business impact.
My experience spans mobile architecture, offline-first design, performance optimization, and integration of complex services such as payments, real-time communication, and healthcare workflows. I bring a product mindset to technical execution, balancing reliability, speed, and UX quality.
I have a strong track record in team leadership, agile delivery, and cross-functional collaboration with product, design, and business stakeholders. I am hands-on with Jira, Figma, and Scrum/Kanban practices to keep teams aligned and outcomes measurable.
I currently serve as Head of Mobile at RICH Payment Solutions while continuing to contribute as a senior developer on selected projects. I am passionate about building high-quality mobile products in fintech, healthtech, and multi-service ecosystems.