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Jason Pollentier

web developer and co-founder of league lab

Work experience


Co-founder and Developer

League Lab

League Lab is a SaaS product that handles all facets of running recreational adult sports leagues, including the public website and extensive tools for league staff.

  • Wrote and maintained all back-end and most front-end code
  • Responsible for web operations and database administration
  • Managed long-term projects as well as day-to-day development
  • Contributed heavily to product decisions
  • Collaborated on customer service, UI / UX design, marketing, and strategy

 TECHNOLOGIES:  PHP, Mysql, Javascript / JQuery, HTML, CSS / SCSS, Linux, Puppet, Nginx, Git, Vagrant, Amazon Web Services


QA and Product Developer

Code Systems Inc /

Spoon was an application virtualization product allowing Windows binaries to be packaged and run across varying Windows platforms. Spoon is now

  • Built a harness and VM integration to run functional tests for the virtualization engine and browser plugin
  • Worked on the web service and hosting infrastructure for Spoon's application library
  • Contributed to a patent covering the application profiling system used by Spoon's streaming engine

TECHNOLOGIES: C#, ASP.NET, Javascript, HTML, CSS, AutoIT, VMWare VIX API, Windows Server, MS SQL Server


Shepherd of Ones and Zeroes

Underdog Sports Leagues

Built websites and back-end systems used to run large adult recreational sports leagues in Seattle and Portland.

  • Helped to manage all technical needs of Underdog's two offices
  • Wrote and maintained all back-end and database code
  • Gained the domain expertise that allowed the launch of League Lab  

TECHNOLOGIES: ASP Classic, Javascript, HTML, CSS, Windows Server, MS SQL Server


Mathematics Instructor - Part Time

Seattle Central Community College

Taught evening courses ranging from arithmetic to pre-calculus.

  • Wrote syllabi and exams independently based on flexible department guidelines
  • Helped many students to overcome a lifetime of fear of mathematics 



B.A. Mathematics

Carleton College - Northfield, MN
  • Graduated Magna Cum Laude
  • Earned departmental distinction for comprehensive exam and talk on finite reflection groups
  • Completed an independent study in complexity and computability from a mathematical perspective
  • Attended Budapest Semesters in Mathematics


Etsy Sales Map

This Ruby on Rails app lets sellers connect an Etsy account to plot their customers' locations on a world map. Maps can be embedded on personal sites or shared on social media.

Three Good Things

A Node.js / React app that prompts the user daily to enter three good things about the day. Mobile devices can receive push notifications and upload photos from the device's camera. 

Other Skills and Interests

I have a lot of experience building an managing complex web applications, but I'm much more interested in the impact of my work than in specific technologies.

I have a strong DIY ethic and love any opportunity to learn a new skill. Aside from the languages I've used professionally, I've also used Ruby, Node.js, React, C, C++, Scala, Python, and Elixir. I enjoy experimenting with digital electronics and microcontrollers, as well.

I'm a cyclist, an avid rock climber, and a fan of New Orleans culture.

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