Mar 2021 – Jun 2023 · 2 yrs 3 mos

• Tech Lead on systems powering search, ads and recommendations with sparse (lexical) and dense (ANN) retrieval, filtering, and faceting. Built a new cloud-native engine with some nice business wins.

Jan 2019 – Mar 2021 · 2 yrs 2 mos

• Built a streaming platform powered by change data capture used by teams across the company, that dramatically reduced the incidence of status-worthy search ingest outages. Reduced ad spend synchronization latency by 10x.

Jan 2017 – Nov 2018 · 1 yr 10 mos · Menlo Park, California

• Worked in a small team on a large scale RocksDB-based datastore (multiple petabytes, billions of keys per second). Improved indexing orchestration and execution.

Jun 2016 – Jan 2017 · 7 mos · Palo Alto, California

• Increased the generality of Kafka Connect with KIP-66 and KIP-89. Lots of improvements to various connectors.

Jan 2016 – Mar 2016 · 2 mos · Remote

• Built Heap's first stream processing solution with Flink.

Jul 2012 – Dec 2015 · 3 yrs 5 mos · Brooklyn & Remote

• Search Infrastructure, backend powering all user-facing search features.

May 2010 – May 2012 · 2 yrs · London, United Kingdom

• Fixed Income Trading. Clearing house integration. Python bindings.

Jan 2010 – Apr 2010 · 3 mos · Munich, Germany

• Webapp for real estate project management.

Jun 2009 – Aug 2009 · 2 mos

• Incorporated support for the SSH, SCP and SFTP protocols into Apache Commons-Net. Later spun it off as SSHJ, eventually handing over maintainership in 2015.