Skills Summary

Programming languages Rust, Python (including cffi, CPython C API, and Cython), OCaml, JavaScript
Network programming Tokio, Twisted (10+ years)
Web development Rocket, Pyramid (+WSGI in general), Klein (+twisted.web in general), React.js
Database administration SQLite, PostgreSQL, SQLAlchemy ORM, Riak
Version control Git, Mercurial

Work Experience

Software Engineer, YouTube (division of Google, Inc.)

San Bruno, CA
March 2016—January 2018
- Ran and visualized the results of experiments to evaluate potential performance improvements
- Investigated and repaired performance regressions caused by CPython runtime implementation details
- Developed and maintained dashboards explaining CPython runtime impact on whole-site performance
- Upstreamed patches to open source projects, including PyPy, Cython, and CPython
- Developed and maintained various other Python, C++, and Go tools and libraries
Senior Software Engineer, Flowroute, Inc.

Seattle, WA
September 2013—January 2016
- Developed automated tooling for repeatably constructing development environments using LXC
- Maintained Python and Lua code to bill customers for phone calls
- Helped design and implement various projects to move data from PostgreSQL to Riak
- Developed and maintained various other Python/Twisted tools
Software Engineer, Yelp, Inc.

San Francisco, CA
January 2013—August 2013
- Designed an SQLAlchemy extension for locating and removing use of relations between objects
- Participated in an 'on-call' rotation for triage of incoming bugs
- Orchestrated a migration of millions of rows between databases
Software Engineer, Fred Hutchinson Cancer Research Center

Seattle, WA
February 2011—December 2012
- Maintained OCaml code to place sequences on a fixed reference phylogenetic tree
- Improved Python tools to automate running and comparing complex analyses using SCons
- Implemented Python web applications for running tasks on a SLURM cluster
- Developed and maintained various other Python tools
Restech, The Evergreen State College

Olympia, WA
September 2009—December 2010
- Implemented internal utilities for housing administration in Python and PHP with Drupal
- Oversaw three other student employees as a project lead
- Administrated MSSQL and PostgreSQL databases
- Developed and maintained a Twisted application for monitoring remotely-deployed hardware

Publications

Matsen, F.A., Gallagher, A., McCoy, C., (2013). Minimizing the average distance to a closest leaf in a phylogenetic tree. Systematic Biology, 2013, doi: 10.1093/sysbio/syt044.

Personal Projects and Contributions

passacre deterministic password generation https://github.com/habnabit/passacre
txsocksx SOCKS4/4a/5 proxy endpoints for Twisted https://github.com/habnabit/txsocksx
Twisted core contributor; major contributions include http://tm.tl/4330 and http://tm.tl/4939
Python; OCaml Batteries Included; rrdtool contributed various patches

Hobbies

#rust and #python on irc.libera.chat solving programming problems by distilling questions to their essential issue and approaching them with best practices
Additional interests cooking, baking, biking, and cryptography

Skills Summary

Work Experience

Software Engineer, YouTube (division of Google, Inc.)

Senior Software Engineer, Flowroute, Inc.

Software Engineer, Yelp, Inc.

Software Engineer, Fred Hutchinson Cancer Research Center

Restech, The Evergreen State College

Publications

Personal Projects and Contributions

Hobbies