Ingvar Stepanyan
Software Engineer at Cloudflare
🇺🇦 => 🇬🇧, United States
Summary
🤩
RockstarIngvar Stepanyan is a software engineer with 14 years of experience specializing in compilers, parsers, developer tooling and WebAssembly. He works as a WebAssembly consultant and is a prolific open-source contributor across both low-level systems (wasm-bindgen, emscripten, capnproto, quiche, rav1e) and developer-facing projects (V8, React, Chrome DevTools, Squoosh). Known for performance-driven improvements and threading/portability fixes, he focuses on benchmarking, build systems and cross-language interop—often surfacing subtle correctness and safety issues. A polyglot in Rust, C++, JavaScript and Go, he frequently refactors for clarity and robustness (for example, JSON decoding rewrites, Rayon/atomics for wasm, and Windows/CI build hardening). Originally from Ukraine and active across UK and US ecosystems, he blends deep systems expertise with pragmatic front-end polish to ship reliable, high-impact tooling.
14 years of coding experience
Github Skills (198)
parserator10
benchmark10
serializable10
parser10
node-js10
ecmascript-610
website-development10
multithreading10
abstract-syntax-tree10
compiler-development10
testing10
proxyserver10
proxy10
c1110
c1710
Programming languages (30)
Github contributions (5)
cloudflare/wirefilter
Nov 2017 - Apr 2019
An execution engine for Wireshark-like filters
Role in this project:
Back-end Developer
Back-end DeveloperContributions:320 commits, 15 PRs, 28 pushes in 1 year 4 months
Contributions summary:Ingvar contributed to the development of a filter execution engine. Their work primarily involved implementing parsing for various data types such as Ethernet addresses, IPv4 addresses, and strings within the filter language. They refactored existing code and introduced new parsing functionalities, suggesting a focus on expanding the capabilities of the engine. The contributions indicate expertise in compiler design and the creation of a custom filtering language.
tlacompilerenginefirewall-configurationeve
WebAssembly/website
May 2020 - Jan 2023
WebAssembly website
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:46 reviews, 48 commits, 107 PRs in 2 years 8 months
Contributions summary:Ingvar primarily contributed to the website's front-end and documentation. They added a new "Specifications" page and updated the "Getting Started" page, enhancing the user's ability to find the information required to interact with WebAssembly. Furthermore, the user updated the roadmap section and the community section, including improving the website's navigation, and updating the CSS, showing a focus on web development and user experience.
rustwasmwebassembly
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