Mike Martinson
Software Engineering Manager at Brex
Squamish, British Columbia, Canada
Summary
👤
Senior🎓
Top SchoolMike Martinson is a software engineering manager and former CTO with 11 years of experience building and leading teams to deliver ambitious web platforms. He combines deep full‑stack hands‑on expertise—especially Elixir/Phoenix/OTP, Ruby on Rails, TypeScript/React, Postgres, GraphQL and AWS—with a track record of operationalizing resilient, high‑throughput systems and strategic technical investments. At Brex he progressed from engineer to manager, and earlier co‑founded CodeCast where he led product, architecture and mentoring in a small-team startup environment. His open-source contributions include meaningful backend refactors to the widely used jsonapi-resources Rails library, improving relationship parsing and error handling with added test coverage. Based in Squamish, BC, he pairs a pragmatic growth mindset and clear communication with a habit of jumping into deep technical problems while cultivating trust and ownership across teams.
12 years of coding experience
12 years of employment as a software developer
Web Application Development, Web Application Development at CodeCoreBA (honours) Philosophy, BA (honours) Philosophy at University of TorontoToronto Metropolitan University
elixir, javascript, ruby, English
Github Skills (8)
ruby-rails10
rails10
json-api10
api10
apidoc10
ruby10
testing9
activerecord8
Programming languages (12)
Github contributions (5)
JSONAPI-Resources/jsonapi-resources
May 2015 - Jun 2016
A resource-focused Rails library for developing JSON:API compliant servers.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:16 commits, 9 PRs, 39 comments in 1 year 1 month
Contributions summary:Mike primarily focused on refactoring and enhancing the JSON:API-compliant server library. They introduced new methods for parsing relationships, specifically to-one and to-many relationships, and added functionality to use resource classes for relationship resolution. Significant additions included a server error callback class method for controllers, improving error handling and logging. They also added test coverage for the exception callback features, further solidifying the project's robustness.
rails
paysavvy/levee
Mar 2015 - Mar 2016
Contributions:33 commits, 33 pushes, 1 branch in 1 year
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