Greenplum Database is a distributed relational database optimized for analytic workloads at the petabyte scale. I've worked on

* Query execution

* Toolsmith (dev tooling / devops / engineering effectiveness)

* Query optimization (both the bottom-up Postgres planner and Pivotal's top-down ORCA optimizer)

* Upstream PostgreSQL work

* Merging new upstream Postgres (v12, v9.4, and v8.3) into Greenplum

* An omnibus "server" team that encompasses storage, catalog, transaction isolation, and MPP aspects of the database

I'm hacking all over the place in Cloud Foundry.

CF Identity. I worked on User Account and Authentication (UAA), an OAuth 2 and SAML identity server; I also worked on Pivotal's proprietary multi-tenant identity-as-a-service offering

Pivotal Ops Manager is the graphical user interface automating BOSH to provide a smooth user experience deploying PCF to data center. My expertise in BOSH came in handy on this stint.