Eugene Liu

Developed APIs for multi-tenant user/device management, secure remote access, and cross-site networking in the enterprise VPN system, integrating JWT-based authentication to handle user permissions. Designed and optimized PostgreSQL relational schemas, implemented indexed queries for fast filtering, and utilized asynchronous job processing to manage real-time device status and logs. Collaborated with frontend, QA, and DevOps teams under Agile workflow to define API contracts, troubleshoot integration issues, and deploy updates to ensure the stability and scalability of enterprise VPN features. Containerized services using Docker and deployed to Linux servers, configuring cloud infrastructure on Google Compute Engine and integrating environment-based secrets management for secure and scalable deployments. Implemented asynchronous log aggregation pipelines for efficient system monitoring and introduced structured logging to ensure stable performance during high-traffic periods.

Created SQL-based reporting pipelines to track multi-channel social media metrics, enabling data-driven content decisions that led to 30% revenue growth in digital training products. Collected and analyzed user engagement and competitor trend data using Python and web scraping tools. Coordinated cross-functional teams (engineering, QA, product) to support the release of a new software version, ensuring smooth rollout and feedback flow.

Created SQL-based reporting pipelines to track multi-channel social media metrics, enabling data-driven content decisions that led to 30% revenue growth in digital training products. Collected and analyzed user engagement and competitor trend data (e.g., training topics, certification demand) using Python and web scraping tools. Coordinated cross-functional teams (engineering, QA, product) to support the release of a new software version, ensuring smooth rollout and feedback flow.