Curiosity has no fixed orbit.
Developer · Co-founder · Photographer
Independent products, a company I co-founded, and the commercial work that came before them.
Events without the friction.
A sports community platform connecting players with hosts, shaped by years of organizing badminton games myself. Players RSVP with nothing more than a name and phone number, while hosts manage recurring schedules, attendance, and automatic waitlists. The aim is to bring sign-ups straight into WhatsApp and other group chats, with no separate app.
Helping families flourish.
A genetic counselling service helping families navigate genetic testing and reproductive risks, with services in Cantonese, Mandarin, and English. I co-founded GeneFlou and developed its website.
Before GeneFlou and Rost, I was a frontend developer building customer-facing websites, apps, and e-commerce features, working with clients to understand their needs and define business requirements.
Developed and maintained React and Redux-Saga components, supported them in production, and mentored junior developers through code reviews and pair programming.
Led the redevelopment of core components from jQuery to React, integrated Shopify’s Liquid templates into the React e-commerce platform, and improved frontend performance.
Built core reusable React components to modernize the legacy interface, shared across the company’s sub-branded websites.
Built websites, React Native mobile apps, and e-commerce experiences, much of it for Fortune 500 companies. Clients also included a major retail bank, an international airline, a Japanese skincare brand, and startups. They’re confidential, so I can’t name them or show the work publicly.
I’m a developer and co-founder of GeneFlou. My work spans independent products and commercial projects, with a focus on building things people can use. My background in economics, sociology, and biopsychology shapes how I think about the people using them.
Photography makes me pay attention. Badminton, tennis, and bowling keep me learning. I enjoy understanding how something works, then seeing how far I can take it.
Born
Grew up
Studied
A project, an opportunity, or a good conversation.
cjaysea@gmail.comFind me on LinkedIn