Jan 2023 – Sep 2024 · 1 yr 8 mos · San Mateo, California, United States · On-site

Jan 2021 – Dec 2022 · 1 yr 11 mos · San Francisco, California, United States · Hybrid

• Sigma is the only no-code business intelligence and analytics solution built for your cloud data warehouse, empowering everyone to explore data.

Jul 2019 – Dec 2020 · 1 yr 5 mos · Palo Alto · On-site

• Worked on Confluent Replicator and Cluster-Linking

Feb 2018 – Jul 2019 · 1 yr 5 mos · Mountain View

• Worked on the distributed database system underneath FlashBlade, a scale-out storage product.

Jan 2015 – Feb 2018 · 3 yrs 1 mo

• DoSNet-team
• Cloud VM integration for traffic reporting/control
• Cluster fabric integration for traffic reporting/control
• Expanded scope of our system (from HTTP-level traffic) to traffic in the external
• customer “cloud" and internal RPC traffic
• QuotaServer-team
• Scalability improvements for config loading (millions of “keys”)
• Multi-language availability for infrastructure clients
• Overhauled release process: rewrote existing integration tests, created new modular
• continuous tests.
• Performance improvements (both for the serving system, as well as underlying
• “Spanner” storage)

Apr 2010 – Jan 2014 · 3 yrs 9 mos

• DoS-team
• Maintained and developed features for a system that monitors a few billion “keys”
• extracted from traffic, while analyzing them according to configured rules, and
• distributing policy to endpoints that control incoming traffic
• Made latency improvements (reduced per-request processing time by several
• microseconds as part of my “starter project”)
• Improved captcha integration and performance for abuse monitoring.
• Extensive experimentation and measurement for large-scale policy distribution of
• millions of rules, which was useful in developing a more scalable version later

May 2007 – Apr 2010 · 2 yrs 11 mos

• Designed and developed tools and systems for various audit and monitoring tasks.

Jun 2006 – Aug 2006 · 2 mos

• Worked on Bloomberg Tradebook, Foreign Exchange

Aug 2005 – May 2007 · 1 yr 9 mos

• Responsible for grading, designing and conducting recitation for students, for undergraduate courses in programming in Java (Fall 2005), Computer Organization (Spring 2006), Data Structures (Fall 2006), and Databases (Spring 2007)

May 2003 – Jul 2003 · 2 mos

• Worked on exploring handoff scheduling in the Linux kernel, implementing it, and developing sample applications to test its performance benefit to kernel upcalls

May 2002 – Jul 2002 · 2 mos

• Worked on parallelization of Fortran routines for a global rainfall prediction model