Work

A payroll engine where every figure has to be re-derivable from its inputs — Indonesian tax and social-security rules, idempotent runs, and an audit trail across ten entities.

• NestJS
• TypeScript
• MySQL
• AWS SQS
• React.js
• Docker

My first project owned end to end — first commit through to handover — in a domain where a misplaced figure is somebody's debt and the system's output is a signed contract.

• Node.js
• Express.js
• Sequelize.js
• MySQL
• React.js

A two-sided rental marketplace I did not start and could not rewrite — where most of the order lifecycle is driven by clocks and third parties rather than by anyone clicking anything.

• Node.js
• Express.js
• Sequelize.js
• React.js
• Redux
• Flutter
• AWS Lambda