Developed Social Investment Management System

Contributed significantly to a high-impact social investment platform serving 7 million+ registered users and handling 30 million+ API requests monthly.

• Developed and optimized key backend services using Node.js, improving system efficiency and contributing to the ability to process payments for 1 million+ beneficiaries monthly.

• Collaborated on the design and implementation of background jobs using AWS Lambda and SQS, improving system responsiveness and scalability.

• Actively participated in weekly code reviews, contributing to improved code quality and knowledge sharing within the team.

• Worked on database optimization for MySQL and PostgreSQL, helping to reduce average query response times to 250-800ms, enhancing overall application performance.