Richard Li

Software Engineer @Pegasystems

Waltham, MA, US

Designed and developed a low-code Launchpad platform for job and event processing, using a custom Domain-Specific Language (DSL) to enable users to easily create, deploy, and automate applications.Built an AWS Lambda-integrated SDK to dynamically execute user-uploaded Java JARs, supporting user-defined Java objects with custom Jackson-based serialization.Engineered scalable event-driven APIs, and asynchronous task execution with Kafka and MongoDB, driving seamless user workflows without blocking background operations.Optimized MongoDB aggregation pipelines to efficiently retrieve event and job metadata, reducing document scans, and improving API performance by 42.41%, as validated through JMeter and Grafana.Implemented RESTful APIs for dynamic data validation, ensuring cross-system data accuracy and integrity.Diagnosed and resolved 17 high-priority system failures using Grafana and Jaeger, decreasing HTTP 5XX errors by 70%(from to 300), enhancing service reliability.Deployed and managed microservices via Docker and Kubernetes, improving system scalability and operational efficiency.

The University of Texas at Austin

Master's degree, Computer Science

New York University

Bachelor's degree, Computer Science