[GoLang - 1 year]Two roles: (1) As part of the Engineering Productivity team, designed and implemented automation tools to work across repositories of most types - GitHub, GitLab, Gerrit, and Artifactory/Docker. (2) Import "Google engineering culture" by doing code reviews, mentoring others, and writing high-quality code and design documents.

[Golang - 5 years; C++ - 10 years; Python]Worked in Technical infrastructure, where I built systems and tools to support users of Google’s production serving system (borg). These tools are used, worldwide, by every team that runs production services. In all of my projects, I’ve kept a focus on making the tools easy and unsurprising for users.Notable projects:Configuration and Data Distribution system that pushes new configurations to services running in production:- Designed and implemented client-facing RPC server;- Defined and implemented tracking of "provenance" for all operations;- Redesigned and implemented a new "build" workflow, used across all components.Version 2 of Google's global package management system:- Designed and implemented all tools to convert v1 packages (hundreds of thousands) and package configurations (thousands) to v2. Package conversion was completely transparent to users.- Defined and implemented a build-system extension that lets 90% of users define and configure their packages with just a few lines in their existing "BUILD" files, as opposed to dozens of lines in separate config files. Before I did it, this was believed to be essentially impossible.Borg Monitoring (starter project):- Designed and implemented the “prober” black-box monitoring system.- Designed and implemented the common configuration underpinnings for prober and other components - the white-box monitoring system (borgmon) and the alert manager. The configuration system allows all of the components to reload their configurations without interruption.

Software engineer, internal Internet evangelism and innovative web sites.Developed the first web shopping cart (futfan.com), first live election returns (1994 California results), and first online, searchable, campaign finance reports (San Francisco, 1995; California, 1996).