Kevin Flansburg

Sunnyvale, California, United States

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Summary

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Rockstar

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Top School

Kevin Flansburg is a systems-focused Rust engineer and engineering leader with 11 years of experience building high-performance, distributed software from Sunnyvale, CA. He has run and scaled teams at Cloudflare (leading the Workers JS/WASM runtime team) and Domino Data Lab, and recently joined Apple as a Staff Rust Engineer, blending hands-on systems work with team leadership. Kevin contributes to notable open-source projects like krustlet (enhancing Kubernetes Kubelet log streaming) and Cloudflare's workerd (WASM/Workers runtime), showing deep expertise in Rust, WebAssembly, and async streaming. His background spans low-latency trading systems, cloud-native Kubernetes automation, and research-grade graph/tensor techniques from Georgia Tech, giving him a mix of practical ops experience and rigorous algorithmic training. He’s comfortable moving between architecture and code—whether refactoring coroutine-heavy streams, adding dynamic TypeScript bindings, or shipping production CI/CD for Kubernetes deployments.

11 years of coding experience

9 years of employment as a software developer

Master’s Degree Computational Science and Engineering, Master’s Degree Computational Science and Engineering at Georgia Institute of Technology

Bachelor’s Degree Mechanical Engineering, Bachelor’s Degree Mechanical Engineering at Auburn University

English, German

Stackoverflow

Stats

141reputation

19kreached

3answers

0questions

Github Skills (26)

asynchronous10

kubernetes10

apidoc10

async10

cloudflare-workers10

api10

kubernetes-pods10

kubelet10

rust10

coroutines10

c-language9

cprogramming-language9

blazor-webassembly9

webassembly9

dependency-management8

Programming languages (12)

TypeScriptMDXC++CSSRustCGoSass

Github contributions (5)

krustlet/krustlet

May 2020 - Oct 2021

Kubernetes Rust Kubelet

Role in this project:

Back-end Developer

Contributions:167 reviews, 109 commits, 100 PRs in 1 year 5 months

Contributions summary:Kevin significantly improved the Kubelet Log API, adding support for tailing and following logs through query parameters. They implemented asynchronous streaming of log lines to clients using `hyper::Body::channel` and enabled multiple log clients. The changes involved modifications to the `handle.rs` and `logs.rs` files within the `kubelet` crate, indicating direct contributions to the core functionality of the Kubernetes Kubelet implementation. These enhancements provide a more robust and flexible mechanism for retrieving container logs.

wasmrustwascckubeletkubernetes

cloudflare/workerd

Dec 2022 - Oct 2024

The JavaScript / Wasm runtime that powers Cloudflare Workers

Role in this project:

Back-end Developer & System Architect

Contributions:6 reviews, 18 PRs, 20 pushes in 1 year 9 months

Contributions summary:Kevin contributed to the `workerd` repository, which powers Cloudflare Workers. Their work includes adding a basic WASM example and updating TypeScript definitions related to Dynamic Dispatch. The user was involved in code refactoring, particularly related to coroutines and recursion removal in streams compression. Additionally, they made dependency updates to the project.

cloudflarejavascriptpowersruntimeservice-worker

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