Matthew Jeffryes
Chief Technology Officer at Moscow Ventures, LLC
Moscow, Idaho, United States
Summary
🤩
Rockstar🎓
Top SchoolMatthew Jeffryes is a Principal Software Engineer with 13 years of experience building and operating scalable distributed systems, currently helping make cloud development feel like local development at Pulumi while consulting through Moscow Ventures. He specializes in functional programming, serverless and cloud architecture with a pragmatic focus on making the easy things easy and the hard things possible. Previously a staff engineer at Stripe and Twitter, he contributed to Twitter’s influential util libraries—improving flag parsing, activity stabilization, and reentrant memoization—demonstrating deep expertise in concurrent, reusable backend primitives. He’s also founded and led engineering teams at startups like HoodHub and Rhizome, bringing product-minded, shipping-first leadership to infrastructure problems. Notably, he pairs low-level library craftsmanship with developer experience advocacy, and won’t volunteer to maintain your Perl.
14 years of coding experience
19 years of employment as a software developer
B.S., B.S. at Harvey Mudd College
Github Skills (11)
finagle10
scala210
scala10
functional-programming9
unit-tests8
algorithms8
data-structures8
algorithm8
datastructure8
data-structure8
datastructures8
Programming languages (15)
Github contributions (5)
twitter/util
Jan 2013 - Sep 2017
Wonderful reusable code from Twitter
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits in 4 years 8 months
Contributions summary:Matthew primarily contributed to the `util` repository by enhancing the `com.twitter.app` and `com.twitter.util` packages. Their work included refactoring and adding features to the `Flag` and `App` components, such as handling undefined flags, passing default values, and treating "--" as the end-of-flags indicator. They also implemented and fixed functionality related to the `Activity` class, including adding a `stabilize` method and fixing `mapState`. Additionally, the user improved memoization functionality in `Memoize` with reentrancy protection and Function2 support.
finaglecontinuationplay-frameworkplayframeworkscala
pulumi/action-release-by-pr-label
Sep 2023 - Oct 2024
A github action for managing releases based on labels applied to PRs
Contributions:9 PRs, 44 pushes, 10 branches in 1 year 1 month
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