About

A bit about me — my background, work, projects and the tools I use daily.

Hayden Bleasel

I'm an Australian software engineer, product designer and technology entrepreneur, currently a Member of Technical Staff at OpenAI. Originally from Sydney, I moved to the United States in 2022 and now call San Francisco home.

My work sits at the intersection of design and engineering. I've spent most of my career building tools for other builders — developer platforms, design systems and open source infrastructure — and I care deeply about craft, speed and the details that make software feel considered.

Along the way I've founded and sold an award-winning digital agency, led product at a security research company from seed through Series A, and shipped a string of open source projects and products, several of which have been acquired. The full story — my work history, projects and the tools I use every day — is below.

Work

OpenAI

Member of Technical Staff

Mar 2026 – Present

Working on the new frontier of intelligence. Stay tuned.

Vercel

DX Engineer

Jun 2025 – Mar 2026

Created Streamdown, AI Elements, Remend, Tersa, OpenReview, Vectr and npm.bet. Helped ship Chat SDK, Platforms, Workflow Builder and Academy; rebuilt the docs sites for v0, Workflow and Turborepo; and co-authored components.build.

Corellium

Chief Product Officer

Nov 2021 – Jan 2025

Started the frontend engineering team, then led the Product, Design and Support teams. Rebranded the company and helped it grow from seed to Series A funding, then subsequent acquisition by Cellebrite.

Jellypepper

Director

Nov 2017 – Jul 2023

Started and ran an award-winning digital agency. Worked with early stage startups working on self-driving car technology, AI, biotech, crypto, drone delivery, cybersecurity and orbital logistics. Acquired by Raw Studio.

Palantir

Product Design Intern

Oct 2015 – Dec 2015

Part of a small team tasked with designing an anti-fraud focused pilot project. Designed a platform allowing for node-based graphing, time-based visualization for object frequency analysis, and a rich data exploration interface.

Earlier in my career, I was Head of Product and Design at Spaceship (later acquired by eToro) and contracted for many clients through R/GA, plus a handful of other roles you can read about on my LinkedIn. I've been fortunate to work with many great companies including Australian Ethical, Canva, Clipchamp, Google, National Geographic, Nike, R/GA, Timberland, Toyota and Westfield. I rebranded ESLint and redesigned the Node.js website.

Projects

  • UltraciteRobust, zero-config linter/formatter preset.

  • Files SDKA unified storage SDK for object and blob backends.

  • BlumeFast, AI-ready, markdown-first docs framework.

  • BatchworkSave up to 50% on LLM costs.

  • GhostSimple, reliable dedicated game servers.

  • Kibo UIA UI library for building web applications.

    Acquired

  • RefractionLearn, improve and generate code with AI.

    Acquired

  • next-forgeProduction-grade Turborepo template.

    Acquired

  • OrateAI toolkit for transcribing and synthesizing speech.

    Merged

  • EververseThe open source product management platform.

    Archived

Education

I hold a double degree from the University of Technology Sydney (2012 – 2016): a Bachelor of Business, majoring in Management, and a Bachelor of Science in Information Technology, majoring in Enterprise Systems Development.

Stack