• Built backend & infra for microservices to provide process and insights from 300TB data per day.

• Improved team's productivity by migrating to monorepo and local-focused development setup which includes test suites for quick validation feedback, reduced feedback loops from 20 mins to under 5 mins per iteration.

• Proposed and led end to end development of orchestrating tasks in data pipeline with AWS StepFunctions, cut the overall process by 67%

• Coordinated across teams to derive performance insight with Python (numpy, pandas, Spark).

• Scaled metric services to process more than 1 billion data points per day, reduced time taken from 10 minutes down to under 30 seconds by utilizing AWS Lambda, which cut computation servers cost by 80%.

• Standardized API style for streamlining development. Fixed multiple bugs related to query performance and concurrency across services.

• Set up CI/CD pipelines and integration tests for the entire platform.

• Stack: C#, Python, ReactJS, Serverless, Spark, AWS Kinesis, postgresql, SQS, Lambda, eks

Built backend for company's flagship product.

Analyzed access patterns to optimize data schema and caching for efficient access. 99% requests finished in under 100ms.

Led backend development for several key features on backend side.

Improved system's availability, served 10M requests daily and achieved 99.9% uptime in 24 months.

Developed internal web frontend for dietitians to interact with end users using React.

Set up batch jobs for for analyzing users' behaviors.

Technology stack: Python, PostgreSQL, Redis, AWS, Docker.

• Built a CRM service for managing commercial buildings, which was adopted by all major real estate agencies in SEA.

• Auto generated tentative construction planning from CAD models, which cut the estimation process by over 70%

• Led the efforts to move deployment to AWS, cutting 70% upfront cost required

• Tech stack: Spring, MySQL, C++

• Designed and implemented a feature of Autodesk DesignScript Studio, which resulted in a more compact graphical user interface of the application.

• Designed and implemented the UI of Autodesk Vasari using WPF, which is now a part of Autodesk Revit.

• Technology used: C#, WPF, Python