Stealth

Built a POC NOSQL KV database that offers 100x better write performance and 10x better read performance than RocksDB with 30% better space utilization in real-world use-cases.Talk to potential customers and investors. Concluded traction wasn't likely.

Helping architect and build out the R2 storage system. Going from 0 to exabyte scale very quickly. Redesigned Workers KV to scale more efficiently and reduce operational costs by ~90%

* Led stabilization effort of Oculus Link product to leave Beta 6 months early. Led the team to drive SAD (% of users experiencing a defect) from 10-20% at launch to <2% for Quest 2 launch (MTBF increased from ~50 minutes to 400 minutes).* Corrected communication issues around customer support stability to account for growing customer base.* Identified gaps in our telemetry & negotiated resources to address them. This showed we lost 20% of users due to lack of USB2 support. Drove the technical validation to demonstrate that USB2 could be supported, gathered supporting documentation & built up organizational momentum to enable USB2. DAP/MAP did increase by the missing 20%, similarly impacting Link revenue.* Organized effort to identify quality issues in our "automatic" selection for quality vs performance & mapped it to telemetry to determine that 23% of users experienced an automatic visual quality too aggressive for their GPU & 30% had an experience too conservative. Drove that down to 0 within that release & prepared a longer term plan to execute against to continue to improve the visual quality we can deliver.* Collaborated closely with product, UX & other parts of the org to refine the user pain points. Organized effort to rewrite Oculus Link dialog worked so that it was natively integrated in VR environment & offered users the option to dismiss. Provided guidance to other teams to implement similar improvements. Worked to refine how visual quality/performance could be better communicated to users.* Built up the technical roadmap with the engineering team of how to bring Quest 2 to market and how we could take advantage of the features of that hardware to deliver a best-in-class (& competitive out-of-class) VR experience.* Fixed various USB issues for Quest 2 when there was a resource gap to derisk ship.* Contributed to architecting the unified PC/mobile UI for Link & some of the initial bringup work.

Wearables/iOT starting with Pixel Buds. Lead some end-to-end work from firmware to mobile apps. Designed the OTA mechanism for Pixel Buds. Lead the development of some future product concepts.

Tech lead for several projects. Have lead at times 5 people across 3 simultaneous projects.Took the lead in planning, execution & integration of adding features collaboratively to an internal application owned by a different team. Was the technical lead for 3 other people. Providing technical guidance for designing a unified framework for recording & playing back collected data Managing a server cluster for build & test automation. Providing technical leadership for 2 other team members Helping manage the release of a cross-functional C++ library for general internal Apple use (like folly but for internal Apple use)Experience successfully porting code between environments (Android, iOS, OSX, Linux) & languages (Java/C++)Responsible for bring-up & integration of a completely new technologyCollaboratively drove the adoption of modern development & testing practices.Took the initiative to develop tooling to reduce per-defect analysis overhead by 3xDrove cross-functional performance analysis & improvements

Track record of rapidly learning complex, unfamiliar systems and contributing immediatelySelf-managed and delivered ahead of schedule: Design and implementation of cutting-edge inertial fusion moduleTook initiative, beyond assigned tasks, to build and ship numerous projects that directly improved key business metricsRelied upon to lead product releases, internal infrastructure and tools developmentConsistent contributions to critical performance improvements and analysis

I led the architectural direction of software updates & implemented several re-architectures to solve direct business needs.

Building the devices that make the world go Ahh.

Building the phones that make the world go Ahhh.

10 GigE linux packet capture & replay tools (high performance kernel module).

Raster QA & performance analyst - Found several performance related problems and recommended some performance improvements.Platforms team - Helped add support for several new spatial formats to Linux build. Integrated ESRI's Linux port of ArcGIS with our Linux build.Research and Development - Created a presentation for the owners of the company analysing technologies in the marketplace and how we can compete, integrate, and learn with/from them.Core team - Rewrote several line-point and line-line algorithms to be correct and more numerically robust. Introduced some major performance improvements when dealing with many large datasets.

Developed new features and fixed bugs for iPhone Bluetooth implementation. Helped find some security issues as well as fix them in the 3rd party stack layer. Performed some performance tests and implemented improvements.

Helped improve the performance of an analysis tool by up to 3 times (reducing the runtime from about 6 hours) while reducing memory useage.Worked on integrating a flight simulator with some secret imaging algorithms in preparation for scientific testing of its search & rescue performance.

Revamped automated smoke-testing platform to provide a much simpler process of adding and modifying large number of test cases systematically for the Foglight Server (10+ operating systems, with 5 application servers each with 2-3 versions of each).Most importantly, revamping allowed me to implement several new features: ability for system to automatically find a networked machine matching test requirements (i.e. OS revision, application server, etc), ability for the system to ensure that tests are running on a clean environment, ability for system to launch concurrent tests, and the ability for multiple systems to be testing different configurations on the same machine).Also, implemented an internal tool that would do unlimited-depth recursive archive (zip, tar, gzip, shar) traversal algorithm that would intelligently verify the integrity of nightly builds with the goal of minimizing false-positives while providing a clear picture of potential problems.

Implemented and helped review design documents for automated bill payments as a voice application deployed for SBC. Additionally performed manual testing on deployment platform as well as improved automated testing framework. Helped improve some internal automatic reporting tools.