Scaling ethereum and IPFS infrastructure to handle billions of requests daily.- Responsible for the complete lifecycle (design/development/deployment/maintenance) of several core microservices (Golang, Terraform) handling several thousand requests per second.- Maintainer of INFURA/go-ethlibs, our open-source ethereum helper library- Contributor to the open source go-ethereum client (15 accepted PRs)

In charge of the overall software efforts at Bodymatter (formerly AuraLife). Focused on scaling out our backend server infrastructure and development of Sleep Watch (a top-10 Health and Fitness iOS App) and NextHeart.- Re-architected and re-implemented our iOS signal capture layer in Swift for much higher performance and accuracy.- Built our infrastructure for replaying sessions into a new algorithm version to qualify changes before pushing to production.- Optimized the performance of our backend data layer, significantly lowering overall AWS costs.Technologies used:- Advanced numerical processing in Python, using numpy, scipy, and sklearn.- MongoDB- Swift and Objective-C- Android (Java, and moved some performance critical code to C using JNI).

I started at Gaikai as a Senior Software Developer, then helped build the new Release Engineering and SRE teams as the company grew. My primary contribution was the development and oversight of our system for provisioning our new infrastructure for PlayStation Now. I was one of the primary contributors to the systems which configured our very large footprint of virtual- and bare-metal commodity machines plus custom hardware.As the lead of the SRE group, I was also the de-facto arbiter of software release readiness, and typically had the final say on whether a system was ready for production or not.Technical highlights:- Designed and managed our production infrastructure for PlayStation Now, from conception to Alpha, Beta, and General Release, all with 100% uptime of internal capabilities due to our distributed architecture. (Sadly, customer-facing uptime was less than 100% due to 3rd party dependencies).- Performed "deep-dive" troubleshooting across an array of in-house and open source projects as an SRE- Integrated both SaltStack and Ansible into our deployment and management pipeline- Python 2.7 / 3.4 tool development (provisioning, DHCP and DNS configuration rendering, etc.)- Started on the Progressive Downloader team, which used API hooking to allow unmodified game binaries to be launched before all the assets had been downloaded.

Live Team Developer, mainly responsible for fighting fires, fixing bugs, and helping get new code releases through the pipeline.- Built a system for centralized logging from our game servers.- Added more complex functionality to our SimClient simulated client module.- Refactored our metrics code for scalability and maintainability.- Developed a Twisted Python script for simulating database load from 50,000 users playing our game.- Developed a framework to run arbitary payloads on Amazon EC2 instances.- Used the above framework to run thousands of SimClients across hundreds of EC2 nodes.- Improved our minidumps.- Lots of post-mortem crash analysis.I left when NetDevil was acquired by LEGO.

Built an iPhone app for finding new albums by bands in your library. Code is a combination of Objective-C and Lua (using iPhone Wax). Mainly written to challenge myself, I designed, developed, and released the 1.0 version in my week off between leaving Garage Games and starting at NetDevil.I still occasionally add features, but haven't had time since joining Gaikai.

Developing a series of different components for InstantAction.com:- Our proprietary plugin technology used to render any game executable inside a browser window sandbox.- The SDK given to in-house and 3rd party developers to integrate their game with our stack.- Our Live Leaderboards and Achievements stacks.- The framework used to manage dedicated game servers for IA hosted games.- Anything else that comes up in our Platform team.Mainly C++, with a smattering of Python, PHP, and Javascript thrown in for good measure.

Developed tools and systems for finding and classifying malware in C# and C++.

Managing development in the Columbus, OH office and doing some J2EE coding. The consulting culture wasn't a fit for me, so I moved on.

Lead Dev on McAfee Personal Firewall. Developed the initial drivers, then moved more to a lead and focused on the UI and usability development.

Worked on NeoTrace, then was lead dev on NeoWatch Personal Firewall.