Siyao He
Software Engineer at DataStax
Irvine, California, United States
Summary
🤩
Rockstar🎓
Top SchoolSiyao He is a software engineer based in Irvine with three years of hands-on experience spanning full-stack web, mobile, and backend systems, currently contributing at DataStax and IBM. He blends React/Next.js front-end work and Node/Java back-end development with database expertise in PostgreSQL, MySQL and NoSQL, and practical DevOps skills in Python, CI/CD and AWS. An open-source contributor, he’s added memory-leak fixes, vector data type support, and CI improvements to the widely used Apache Cassandra Java driver—showing his ability to improve performance and reliability in distributed systems. Academically strong with a 4.0 MS in Software Engineering from UC Irvine and a BBA with a computing minor, he also has research experience in hardware acceleration using BlueSpec and C++. Colleagues describe him as a pragmatic engineer who moves comfortably between production systems, testing infrastructure, and low-level performance work.
3 years of coding experience
1 year of employment as a software developer
Bachelor of Business Administration - BBA, Accounting and Finance, 3.81/4 for Minor in Computing, Bachelor of Business Administration - BBA, Accounting and Finance, 3.81/4 for Minor in Computing at The Hong Kong Polytechnic UniversitySummer Programme, Economics, Summer Programme, Economics at University of CambridgeUniversity of California, Irvine
Github Skills (9)
javas10
query-builder10
cassandra10
cassandra-database10
java10
testing10
cicd9
performance-optimization9
maven8
Programming languages (15)
Github contributions (5)
apache/cassandra-java-driver
Aug 2023 - Mar 2025
Java Driver for Apache Cassandra®
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:48 reviews, 24 PRs, 77 comments in 1 year 7 months
Contributions summary:Siyao primarily focused on enhancing the Java Driver for Apache Cassandra. Their contributions include refactoring code to prevent memory leaks and improve the performance of metric updates within the core driver. They also worked on extending the query builder and schema builder functionalities by adding support for the vector data type. Furthermore, the user was involved in setting up and maintaining the CI pipeline, ensuring the latest Cassandra versions are used for testing.
nosqlcassandraapachedatabasedatastax
SiyaoIsHiding/R_GA_GSOC
Mar 2023 - Mar 2023
Contributions:69 releases, 70 pushes, 3 branches in 8 days
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