VoidZero Engineer

• Join the VoidZero team, which builds the open-source tools that power the modern web. • Work on projects like Vite that have pushed the frontiers of what is possible and are trusted by countless developers. • Improve the VoidZero family of projects spanning Vite, Vitest, Rolldown, Oxc, and Vite+. • Focus on making developers more productive across the ecosystem. • Work in public, solving ambiguous technical problems and engaging directly with community members. • Collaborate across time zones in a remote-first team. • Work from London on a hybrid basis, with the role also open in Singapore, Sydney, Tokyo, Seoul, and Lisbon.

• Bring strong JavaScript and TypeScript experience. • Bring a passion for open source and developer communities. • Bring a background in framework development, developer tooling, or product infrastructure. • Bring strong product sense and genuine care for developer experience. • Investigate deeply, debug ambiguous issues, and reason from real evidence. • Bring experience working across time zones in a remote team. • Communicate clearly in writing and take strong ownership of your work. • Work comfortably in public alongside an open-source community.

• Bring familiarity with Rust, which counts as a big bonus. • Bring experience maintaining open source projects. • Bring experience with compilers, bundlers, test runners, and caching. • Know Vite, Vitest, Rolldown, Oxc, or Vite+ already. • Spot problems everyone else has normalised and build a solution with the latest tools.

• Design and ship features that improve the VoidZero developer tools. • Collaborate across the open-source ecosystem to drive further adoption and smoother onboarding. • Optimise the performance, reliability, and user experience of the tools. • Engage with community members on issues, contributions, and direction.

We have used Cloudflare products ourselves, including Turnstile to protect apps from bots, so we know first-hand how solid their tech is, and that matters when you are thinking about where to work. With over $2.1 billion in annual revenue, 34% growth in Q4 2025, and $4 billion+ in cash reserves, Cloudflare is financially rock-solid and still growing fast. They operate one of the largest networks in the world, sit in front of roughly one in five websites, and are pushing hard into AI infrastructure and the agentic web. The scale of what they do is genuinely impressive; so many of the apps and services you use every day depend on Cloudflare without you even knowing it. Across Glassdoor, employees consistently highlight the great products, friendly and smart colleagues, positive working environment, and genuine flexible hybrid and work-from-home arrangements. They also offer unlimited paid time off and have a real focus on diversity and inclusion. We should be upfront, though: the Glassdoor rating sits at 3.4, and reviews are mixed. While the culture and people are widely praised, compensation competitiveness and slow promotion processes are recurring pain points. However, if you want to solve hard, Internet-scale problems at a company whose products you probably already rely on, Cloudflare is a brilliant place to do that.

• Work on open-source tooling used by developers worldwide, including Vite and Vitest. • Build in public rather than behind closed doors. • Choose between London, Singapore, Sydney, Tokyo, Seoul, and Lisbon as your base. • Work across time zones in a genuinely distributed team. • Join a company named to Entrepreneur Magazine’s Top Company Cultures list and ranked among Fast Company’s World’s Most Innovative Companies. • Contribute to public interest work including Project Galileo, the Athenian Project, and the 1.1.1.1 resolver.

Cloudflare is on a mission to help build a better Internet, running one of the world’s largest networks and powering millions of websites and Internet properties for customers from individual bloggers to Fortune 500 companies. Its VoidZero team builds the open-source tools that power the modern web, including Vite, Vitest, Rolldown, Oxc, and Vite+, which are trusted by developers worldwide. Fundamental to Cloudflare’s mission is protecting the free and open Internet: Project Galileo has equipped more than 2,400 journalism and civil society organisations across 111 countries with protection at no cost, and the Athenian Project has served more than 425 local government election websites across 33 states.