Kevin Leimkuhler

Denver, Colorado, United States

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Summary

🤩

Rockstar

🎓

Top School

Kevin Leimkuhler is a software engineer with 11 years of experience building high-performance, observability-focused infrastructure and distributed systems from Denver. He’s a seasoned Rust and backend developer who has contributed to prominent open-source projects like Linkerd, Tokio, Mio, and Crossbeam—work that spans service-mesh proxy internals, async runtimes, Unix domain socket support, and concurrency primitives. At Buoyant he solved real-world production problems (automatic protocol detection, UDS support, lease-based Kubernetes controllers) that informed upstream library design and prevented subtle networking failures. Kevin combines deep systems-level troubleshooting with practical DevOps sensibilities, having refactored installers and Helm charts for smoother deployments. Now at Grafana Labs, he continues to focus on reliable, observable cloud-native systems while bringing an engineer’s eye for API ergonomics and cross-platform correctness.

11 years of coding experience

8 years of employment as a software developer

Bachelor's degree Computer Science, Bachelor's degree Computer Science at Penn State University

Conestoga High School

Github Skills (56)

algorithm10

asynchronous10

service-mesh10

algorithms10

kubernetes10

docker10

non-blocking10

parallel10

async10

atomics10

testing10

http10

channel10

io10

networking10

Programming languages (8)

TypeScriptHCLShellRustScalaJavaScriptGoRuby

Github contributions (5)

linkerd/linkerd2

Nov 2018 - Jan 2023

Ultralight, security-first service mesh for Kubernetes. Main repo for Linkerd 2.x.

Role in this project:

Back-end & DevOps Engineer

Contributions:12 releases, 1964 reviews, 410 commits in 4 years 3 months

Contributions summary:Kevin primarily contributed to backend logic and the system's overall functionality. They fixed issues related to filtering, rendering of templates, and handling of data plane and control plane logic for the project. The user also added features that allowed proper support for the new proxy capabilities, particularly the opaque port configuration. Finally, the user refactored the install process to make it Helm compatible and to consider more features.

golangmesh2-xrustsecurity

linkerd/linkerd2-proxy

Jan 2019 - Nov 2022

A purpose-built proxy for the Linkerd service mesh. Written in Rust.

Role in this project:

Back-end Developer

Contributions:303 reviews, 27 commits, 180 PRs in 3 years 10 months

Contributions summary:Kevin primarily contributed to the core functionality of the Linkerd2 proxy, a service mesh written in Rust. Their work involved implementing features for the outbound router, specifically focusing on how the proxy handles the `l5d-dst-override` header to direct traffic. They also addressed metrics by removing the destination address from endpoint labels and increased the router capacity. Furthermore, the user added functionality for setting the `l5d-remote-ip` header.

meshproxyrustpurposekubernetes

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