Xavier Mirabelli-Montan Logo

About

I build the tools that let other people ship things faster. Right now that means being founding engineer at Puck, an AI-native visual page editor for React. I work alongside the CEO to shape the product and own everything from the editor itself to the AI agent workflows, multi-tenant infrastructure, billing systems, and developer SDK. It's the kind of role where the product didn't exist before you arrived, and neither did the playbook.

I'm originally from Northern California, not far from Silicon Valley, though I've called Brighton home for over a decade now. I've been building for the web the whole time. From my first Drupal site to the React and Next.js systems I architect today, the through-line has always been the same: make complex things simpler for the people who use them.

Before Puck, I spent five months as frontend architect at Veeva Systems, working on their Link Workflow product — a tool used across the pharma industry. I delivered advanced report filtering, a multicell paste feature built with React-DND, and led the platform's upgrade from React 18 to React 19. Before that, I spent nearly three years at IDX as lead fullstack product engineer, where I built decoupled low-code platforms with Drupal, Next.js, and Puck, led the development of a new design system, and guided a PHP team through a full transition to TypeScript — reducing AWS costs and technical debt along the way.

Earlier in my career I served as technical director at Coherence Digital, leading frontend, backend, and QA teams on large-scale web estates for clients including Stanley Black & Decker, Bayer, and Close Brothers Merchant Bank — sometimes managing hundreds of sites at once. That's where I developed a deep respect for low-code tooling done properly, and a healthy scepticism of it done badly.

Alongside all of this, I run The Slicycle, a pizza pop-up which I founded in 2025. It's part passion project, part proof that the same principles I apply to software (iterate fast, keep it simple, get it in front of people) work just as well with dough. It also reminds me that the best products ((digital or otherwise) are ones people genuinely enjoy using.

Outside of work and pizza, I play double bass, DJ, and occasionally present on the radio. I spend weekends on the South Downs with my dog, or hunting down something interesting in Brighton's craft beer scene. I came up in a world where technology felt like magic, and I still think the best version of it should feel that way.