Kurtis Rainbolt-Greene is a seasoned technology leader and CTO based in Portland, Oregon, with 11 years of experience building high-performance web platforms and developer-friendly infrastructure. He’s a pragmatic polyglot who primarily writes Elixir, JavaScript, and Ruby and has a track record of improving performance and maintainability at scale—from refactoring Mastodon's backend to migrating heavy commerce systems at GOAT. As Principal Owner of Difference Engineers and through senior roles at companies like TBWA\Media Arts Lab and Laurel & Wolf, he blends hands-on engineering with mentorship, documentation, and process improvements that boost team throughput. Kurtis excels at turning legacy systems into resilient, observable services and has a knack for extracting costly complexity out of shipping and feed pipelines—work that has produced measurable savings and faster developer onboarding.
Your self-hosted, globally interconnected microblogging community
Role in this project:
Back-end Developer
Contributions:10 reviews, 13 commits, 12 PRs in 3 days
Contributions summary:Kurtis primarily focused on refactoring and optimizing the back-end code of the Mastodon microblogging platform. They migrated functionalities into background workers to improve performance, specifically for feed management and message broadcasting. The user also refactored code related to database interactions and application components, enhancing the overall efficiency and maintainability of the system. They also worked on incorporating internationalization support for the platform.
Contributions:67 PRs, 122 pushes, 427 branches in 7 months
apiphpcore-api
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Kurtis Rainbolt-greene - Chief Technology Officer at Edge