Enjoying my dream job working on Minecraft Bedrock!

I autonomously built and shipped an experimental Windows update service designed to update Windows for machines which had previously failed to update. This C++17 service leveraged custom cloud services and was deployed to millions of Windows machines.Working with my team, I designed and built packaging and installation tools for cross platform Windows application installation and updates, while leveraging purely open source software, C#, and .NET Core.I volunteered to help a team meet their schedule to create a new Windows update stack. While helping, I designed and implemented a rule based engine to analyze packages and catch bugs before they were shipped to customers using C# and Azure services.Helped another team hit deadlines and while doing so I improved the reliability of their Windows service. With some refactoring and a command queue, I removed all race conditions from their Windows API.

I shipped Windows HoloLens (Augmented Reality Device) and three updates for it.While working on it, I designed and implemented Windows AR APIs and built highly concurrent supporting Win32 services in C++17. This was challenging as the hardware was changing while the APIs were being built, and internal consumers were3 using them. Most of these APIs were real time sensitive and had memory or cpu constraints.I refactored our aging code base by implementing a locking hierarchy, adding non-blocking IO, and defining strict initialize and shutdown orders. This resulted in a 30% reduction in our incoming bug rate during the next release milestone.To improve quality I proposed and built an end to end automated testing framework that resulted in the team's P0 bug rate being reduced by half. It worked by simulating HoloLens hardware drivers with software and providing a high level API that represented the world as a simulation.While working on HoloLens I researched and developed a number of prototype features. Two of which shipped. A real time polygon reduction algorithm and a WiFi relocalization service which I received a patent for (10531065).I contributed to the team’s culture by updating old c++ patterns to new c++17 paradigms, sharing interesting c++/coding articles, fostering whiteboard design discussions, many code reviews, and helping junior developers succeed.Other challenges I faced included debugging rendering APIs, triaging bugs between teams above and below us in the stack, and helping other teams consume/understand our APIs.

I shipped Windows 8 Calendar App for which I built and maintained the JavaScript UI. Later in the product's life-cycle I maintained all of its UX.My challenges included building an app on unfinished APIs, refactoring an ever growing JavaScript code base, adding web workers to parallelize the work and managing product expectations against a tight deadline.To improve code quality across the application, I helped write an internal jQuery like library, introduced the use of the promise pattern, and other functional programming paradigms.

I worked on a custom network protocol for a multi-threaded media streaming service written in C++ and designed for satellite traffic. It was built on top of UDP and leveraged protocol buffers.I wrote custom extensions to MediaWiki to interact with a NoSQL semantic learning system made with Python. I also built REST APIs in Python so apps could consume data from the semantic learning system.I contributed to a C# Outlook plugin that assisted in auto sorting mail using semantic learning and behavioral analytics.

I implemented a custom content management system from the ground up and deployed it on a number of customer sites. Here I learned how to support customers which required writing custom extensions for their needs. Some customers required integration of outside systems for distributing ads.I also built a number of small full stack websites based on customer requirements using a variety of open source CMS.