Hi, I'm Luke.

I'm a software engineer at Snowflake.

Most of my experience is in writing backend and low level applications. This ranges from working with boot loaders to working on JIT compilers, standard libraries, and databases. I've implemented hash functions and encryption schemes (neither of which I recommend using in production). I have a bit of experience making 3D things too.

I also have some web development experience. I know HTML/CSS, Javascript, Ruby and PHP.

Work experience:

Snowflake - Software Engineer

June 2019 - Present

• I'm here now! I'll add what I do after I do it.

Dropbox - Software Engineer

Spring 2018

• Service over 500K previews per month by adding support for previewing tarballs and 7zip archives
• Built architecture that improves preview generation time of large PDFs by up to 70%

Snowflake - Software Engineering Intern

Spring - Fall 2017

• Wrote high-performance C++ for the Snowflake SQL execution engine
• Implemented optimizations resulting in a 13% improvement in an industry standard benchmark
• Built new SQL features compliant with the SQL standard

IBM - JIT Compiler Developer

Fall 2016

• Ported the OMR JIT compiler to OS X
• Designed and implemented a framework to test compiler optimizations
• Participated in the OMR open source community

TextNow - Internal Tools Developer

Winter 2016

• Implemented new features on RESTful micro services using Ruby on Rails, PHP and MySQL
• Developed an inventory reconciliation tool
• Aggregated customer support call metrics into a dashboard using Ruby, Grafana and InfluxDB

Argyle BIA - Web Developer

Summer 2013 & 2014

• Built the Argyle BIA website using PHP and MySQL
• Documented custom features for future website managers

Projects and other goodies:

• LICK - Install and manage Puppy Linux installations from Windows in a few clicks. Supports Windows 95 to 10. Mostly written in C.
• Deep C - A C standard library, implementing most of the C11 standard
• Cryptopals Challenges - My solutions to the Cryptopals Crypto Challenges, a set of security and encryption challenges. I have completed set 7. Written in Scala.
• Ray Tracer - A ray tracer I created for my CS488 class at UWaterloo. Written in C++.
• 3D Plot - Plot 3D points, lines and planes. Written in Javascript, using Three.js.
• Sudoku Solver - Solves sudoku puzzles. Written in Javascript, with node.js as the backend. (Backend is proof-of-concept, could be all local).
• Yahtzee - The classic game of Yahtzee. Written in Javascript, using Knockout.js.
• Planck - A basic 3D software renderer. Written in Scala, with a heavy emphasis onimmuatable types and higher order functions. Most of the interesting code can be found in the Renderer class.

You can see more of my projects on github.

Contributed to:

• Haiku OS - As part of Google Code-in 2014, I made a variety of contributions to Haiku, including:
  • writing recipes to package programs
  • contributing to two small games, BeSpider and HexVexed
  • writing two translators - wrappers around OptiPNG and aalib to allow easy usage of each in Haiku
• Woof (CE) - I've made a few small contributions to Woof, and later Woof-CE.
• Various other projects