Zebulon Piasecki
System Engineer at Cloudflare
Portland, Maine, United States
Summary
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RockstarZebulon Piasecki is a System Engineer at Cloudflare with a decade of experience building reliable, developer-focused cloud tooling from Portland, Maine. He contributes to high-impact open-source projects such as cloudflare/workers-rs and the Wrangler CLI, improving Rust-based Workers, smart placement configuration, log filtering, and sourcemap uploads. Comfortable across backend and full-stack work, he pairs systems-level debugging and integration testing with pragmatic feature delivery that improves observability and developer ergonomics. Colleagues rely on him to surface subtle bugs (e.g., response body corruption fixes) and to keep large codebases lint-clean and well-tested while shipping useful operational features.
10 years of coding experience
Github Skills (18)
javascript10
testing10
configuration-management10
cloudflare-workers10
serverless10
rust10
webassembly10
cli10
apidoc9
rust-wasm9
typescript9
typescript-types9
api9
serde9
typescripts9
Programming languages (14)
Github contributions (5)
cloudflare/workers-rs
Oct 2021 - Jan 2023
Write Cloudflare Workers in 100% Rust via WebAssembly
Role in this project:
Backend Developer
Backend DeveloperContributions:9 releases, 153 reviews, 165 commits in 1 year 3 months
Contributions summary:Zebulon primarily contributed to the backend of the `cloudflare/workers-rs` project, focusing on writing Cloudflare Workers in Rust. Their work involved updating dependencies like `worker-kv`, addressing body corruption issues by using `Uint8Array` for responses, and fixing various formatting and clippy lint issues. Additionally, they implemented and maintained integration tests, ensuring the correct functionality of the routes within the worker.
cloudflarerustserverlessrustlangwebassembly
cloudflare/workers-sdk
Jan 2022 - Mar 2025
⛅️ Home to Wrangler, the CLI for Cloudflare Workers®
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:29 reviews, 15 PRs, 1 push in 3 years 2 months
Contributions summary:Zebulon's commits primarily revolve around enhancing the Cloudflare Workers SDK, particularly the `wrangler` CLI tool. A major contribution is the addition of smart placement configuration support, allowing users to optimize worker placement. The user also implemented features related to deprecation warnings for legacy configurations and added the ability to filter Worker tailing logs by version ID, improving debugging and monitoring capabilities. Furthermore, the user also enabled Pages project sourcemap uploads and included relevant metrics tracking.
cloudflarejavascriptserverlessworkerstypescript
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