[Software engineer at Google since 2004; mix of hands-on engineering and leadership work; successfully led teams of ~50 people while staying fairly technical; focus on large data management, processing, & analytics.]For many years I've been a key member of Google’s ads infrastructure team, focusing on massive scale stream processing, low-latency distributed query processing, and analytics middle tiers. Published engineering artifacts that I led, managed, or co-authored in that period include:* Development of the F1 relational database system (https://research.google/pubs/pub41344)* Migration of Google's AdWords system from MySQL to F1 (https://research.google/pubs/pub38125)* The Shasta reporting system and the declarative language RVL (https://research.google/pubs/pub45394)In recent years I have focused on some of the harder Google-internal business analytics and data integration challenges.While I have worked in a diverse set of roles and projects, common themes have been:* large scale data infrastructure* analytics and reporting* executing some of the hardest data migrations / integrations at Google end-to-end* handling business critical datasets that come with stringent legal and privacy constraints* declarative paradigms of programming* fostering happy and healthy engineering teamsIn 2021, I gave up my role at Google with the goal of focusing my professional career on the climate crisis. After a thorough search, I joined WeaveGrid.com as software lead.