Colin Arenz
Software Engineer at Stripe
Woodinville, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolColin Arenz is a software engineer with 11 years of experience building high-performance systems, currently contributing at Stripe from Woodinville, Washington. He has a strong background in runtime and compiler work from a decade at Microsoft, where he modernized Excel internals and delivered performant .NET support for embedded devices. As Principal Software Engineer at AI2 he founded and led Beaker, a platform for reproducible research that bridged cloud and on-premise workflows. Colin’s open-source contributions include back-end work on a high-performance Go cache (ristretto), where he implemented and tested TinyLFU eviction logic, reflecting deep knowledge of data structures and caching. He combines systems-level thinking with pragmatic API and platform design, frequently tackling hard code-generation and performance problems. His track record shows a balance of research-facing platform leadership and low-level engineering rigor.
11 years of coding experience
15 years of employment as a software developer
Bachelors, Computer Science, Bachelors, Computer Science at Digipen Institute of Technology
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (17)
algorithm10
algorithms10
caching10
testing10
data-structure10
go10
golang10
data-structures10
disk-cache10
web-cache10
object-cache10
memory-cache10
performance-monitor9
standard-library9
performance-analysis9
Programming languages (8)
Github contributions (5)
hypermodeinc/ristretto
Apr 2019 - Apr 2019
A high performance memory-bound Go cache
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 3 PRs, 14 comments in 6 days
Contributions summary:Colin primarily contributed to the implementation and testing of the TinyLFU caching algorithm. Their work involved adding features like default no-ops for configurable interfaces and porting the TinyLFU eviction policy. They focused on improving code clarity through test name clarification and comment corrections. The user's commits demonstrate a strong understanding of data structures and caching concepts, focusing on the core logic and functionality of the cache.
golangmemorylrugo-cachego
beaker/middleware
Mar 2019 - Feb 2021
Middleware for Beaker services
Contributions:9 PRs, 17 pushes, 12 branches in 1 year 11 months
middlewarebeaker
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