Hobbyist app developer + senior software engineer
I'm Chino Tan Ismail, a software engineer in Jakarta. Outside work, I make small iOS apps for problems I run into myself, then share them with the world in case they are useful to someone else.
I am a hobbyist app developer. I make small, practical apps around things I actually use: studying Mandarin, cleaning up messy recipes, and making everyday tasks a little easier. They are personal projects first, shared publicly just in case they help someone else too.
A Mandarin vocabulary study app for HSK 1-6. It includes flashcards, quizzes, search, progress tracking, and offline study, so quick daily practice is easy to keep up with.
A recipe app for turning rough notes into something easier to cook from. Paste in a messy recipe and it organizes ingredients, steps, timers, saved recipes, and a focused cook mode.
Work on fintech backend and fullstack systems across account, gamification, social, trading, collateral, and institutional trading products. I help shape implementation details, API contracts, data migrations, release support, and production monitoring.
Built and supported corporate banking modules across transaction processing, fraud integrations, and production support. The work involved backend services, integrations, issue investigation, and keeping critical flows running reliably.
Developed responsive websites and campaign microsites for FMCG and technology brands, turning creative briefs into production-ready digital experiences.
Java, Spring Boot, microservices, REST APIs, PostgreSQL, SQL/NoSQL, pub/sub integrations, production support.
React Native, TypeScript, offline-first flows, authentication, storage, and app release workflows.
GCP, Docker, Jenkins, Git, CI/CD, monitoring, App Store release workflows, code review, test coverage.
I like owning work beyond the ticket: understanding the problem, making the tradeoffs clear, shipping the change, and staying close to how it behaves after release.
I care about the parts that keep teams moving: HLD/LLD notes, API contracts, production runbooks, code reviews, and mentoring when a teammate is growing into full-stack work.
My management master's work focused on risk management, useful context for fintech, distributed systems, and operational tradeoffs.