Automated coupon stock replenishment and bulk distribution, managing over 250,000 campaigns. Developed reusable multi-file upload and scheduling components, significantly boosting operational efficiency

Led the redesign of the homepage search module, overcoming complex interaction challenges. Improved Indonesia's search conversion rate by 86% through URL parameterization and A/B testing.

Upgraded the Order Details UI across 25 diverse product categories and multiple apps. Implemented an extensible theme system, enhancing UI iteration efficiency and brand consistency by an estimated 40%.

Facilitated rapid launch of new business lines 'Data Package' by developing a unified category ID-driven architecture. Extended reusable components for 'plug-and-play' construction, improving code reusability and maintenance.

Demonstrated strong on-call troubleshooting skills, resolving an average of 5 online issues and 15+ consultation queries per shift. Coordinated resources to minimize impact on live systems.

Designed and developed user-friendly research websites for internal crop breeding data. The website allows researchers to access crop breeding data chronologically with details.

Made items accessible by URL with React Router and reduced the refreshing latency by 2 seconds by caching item data in SessionStorage. Also decreased 35% back-end API calls.

Used useCallback and useMemo to resolve React Infinite render loop issue. And worked on large revamp tasks including: upgrading multiple UI component libraries used by 100+ internal developers to Node 18 to avoid possible risks after Node 14's end of life; rewriting test cases using React Testing Library to replace Enzyme.

Implemented and revised 3 Restful APIs. Reviewed and deployed 3 APIs to AWS Lambda through AWS CodeBuild and GitHub Actions, which automates employees' auth process.

Trained 3 developers and documented processes of configuring API's local dev env, including integrating AWS and database, retrieving passwords and testing via AWS IAM roles.