Established an interdisciplinary studio for inquiry into engineering, art, and physical design, collaborating with creative technologists and professional engineers. Selected works:Linear Clock / Solar: a novel timepiece using GPS and astronomy, with a creative process involving PCB design, firmware development, and CNC fabrication of the enclosure. Featured in the print editions of HackSpace, a magazine by the Raspberry Pi Foundation, and GPS World, a publication for the satellite navigation industry.Ollie: a standalone voice assistant appliance, built on the open-source Snips voice platform and Raspberry Pi, for doing handsfree measurement tasks on digital oscilloscopes.

Software lead on Tracker M, a compact asset tracker product combining ARM SoC, GNSS, CAN-FD, and LTE/NB-IoT modules. Directly responsible for bring-up from prototype to EVT including hardware validation, board support package, and peripheral drivers.

Engineering advisor consulting on architecture of database design, security, and infrastructure.

Staff engineer on PeopleGraph, providing contact enrichment and relationship & role mapping of the professional world.

Building 8: engineer on Project Sequoia (formerly Nascent Objects, acquired 2016), a consumer hardware rapid-prototyping platform. Built on-device integrations to Facebook’s platform and infrastructure. Conducted post-acquisition security review and engineering practices integration. Organized Facebook’s first hardware-focused hackathon using Sequoia development kits.Nearby Friends and Realtime Location: tech lead for a product development team of Android, iOS, and web engineers. Delivered critical performance and security improvements to location backend services. Conducted UX field research to set product roadmap.EdgeQuery (later development as EntQL): engineering lead for a new PHP/Hack framework for querying graph data. Key innovations include code generation of query syntax, automatic selection of indexes, and query optimization.FB@Work (later development as Workplace by Facebook): built the initial product of company groups based on the success of Facebook groups internally.Internal Search: built the company internal search service on Lucene and Elasticsearch. Whole-stack ownership including the SERP frontend, indexers for the internal wiki and other tools, and containerized deployment of Elasticsearch across multiple datacenters.

Software engineer on the Server Technology team.Advanced Queuing and Streams replication group: rebuilt the AQ message propagation service using Oracle Scheduler, designed and implemented APIs for in-memory message queues, hardened product against (then-novel) SQL injection attacks.

Software development intern working on MULTI, Green Hills' IDE and debugger for embedded platforms.