About

Hayden Bleasel

My work sits at the intersection of design and engineering. I build tools for other builders — developer platforms, design systems and open source infrastructure — and care about craft, speed and the details that make software feel considered.

I started out in product design in Sydney, then went on to run a digital agency and lead product, design and engineering teams. I moved to the United States in 2022. Below is a fuller picture of my work, projects, education and the tools I use.

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.

R/GA

Contract Senior UX Designer

Aug 2020 – Jul 2021

Collaborated with cross-functional R/GA teams globally for some major clients, including Nike, Snap, Toyota, Timberland, Australian Ethical and Google.

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; as well as some big companies like Canva, Clipchamp, National Geographic and Westfield. Acquired by Raw Studio.

Spaceship

Head of Product and Design

Dec 2016 – Sep 2017

Led product and design at Spaceship, a Cannon-Brookes-backed superannuation fund helping young Australians invest in their future. Later acquired by eToro.

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 held a handful of other roles you can read about on my LinkedIn. I also rebranded ESLint and redesigned the Node.js website.

  • Robust, zero-config linter/formatter preset.

    Active
  • A unified storage SDK for object and blob backends.

    Active
  • Fast, AI-ready, markdown-first docs framework.

    Active
  • A UI library for building web applications.

    Acquired
  • Learn, improve and generate code with AI.

    Acquired
  • Production-grade Turborepo template.

    Acquired
  • AI toolkit for transcribing and synthesizing speech.

    Merged
  • The open source product management platform.

    Archived
  • Save up to 50% on LLM costs.

    Archived
  • Simple, reliable dedicated game servers.

    Archived
  • Track and offset your carbon footprint.

    Archived

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.

[1] Refraction was used by Accenture, AKQA, Amazon, Bentley, Canva, CapGemini, Cisco, Experian, ExpressVPN, Google, H&M, Ikea, John Deere, Nespresso, PandaDoc, Qantas, Rakuten, Red Bull, Repl.it, Roblox, Softbank, Sega, Tiktok, Uber, Washington Post, Wix, Yahoo, Zoho and ZoomInfo.