HEALF IS EUROPE'S FASTEST-GROWING COMPANY. Number one on the FT1000, number one on the Sifted 100. From £1m to over £100m in under three years, with a small, talent-dense team and an electric culture with day one founder intensity. Now we're aiming for £1bn in the next three. We curate the world's best wellbeing brands across The Four Pillars™: EAT, MOVE, MIND, SLEEP. That's the first chapter. THE NEXT CHAPTER IS HARDER AND MORE INTERESTING. We are moving from one market to many, from e-commerce to a technology platform, and from curating wellbeing to defining it. We are a health company, so we think we should act like one. At its fullest expression, Healf redefines what wellbeing means for tens of millions of people. About the Role You'll build the end-to-end systems that power Healf's operations—from inventory management and automated replenishment, to inbound and outbound freight optimization, vendor invoicing, warehouse labeling, and supplier operations. As our Lead Full Stack Engineer, you'll own the technical foundation of the systems that run Healf's supply chain. You'll define the architecture of our end-to-end fulfillment platform, make critical infrastructure decisions, and set the engineering standard for how these systems are designed, built, and operated. This is a high-ownership role with significant scope, direct influence over our operations technology roadmap, and the opportunity to build systems that fundamentally transform how the business scales. WHAT YOU WILL DO - Architect and Build: Own the architecture of the multiple supply chain platforms being built grounds up, including replenishment, logistics, receipt, stock visibility, and supplier operations. - Own End-to-End: Take projects from system design through implementation, testing, deployment and iteration. - Set the Technical Foundation: Define key decisions across stack, data model, event-driven workflows, and failure handling. - Reimagine Processes: Proactively identify opportunities to replace manual, spreadsheet-driven workflows with automated, resilient, status-driven systems. - Lead and Mentor: Establish engineering best practices, mentor engineers, and build a high-performance culture within the Operations engineering function. WHAT WE ARE LOOKING FOR - Strong full stack engineering experience with architectural ownership building and operating production systems, not just integrating them. - Hands-on experience architecting supply chain systems and data-driven applications used by operators. - Strong architecture instincts; able to reason through complex system design problems and make sound technical trade-offs under real business constraints. - Strong backend engineering with AWS serverless architectures and excellent proficiency in Node.js / TypeScript. - React and Next.js experience, with a focus on usable, maintainable internal tooling. - Comfortable balancing deep individual contributor work with mentoring and supporting other engineers. - Adaptable and comfortable with ambiguity, with a bias toward delivery in a fast-moving environment. THE DEAL Competitive and meaningful compensation package for the right person. We ask a great deal of the people who work here. We expect full ownership and a genuine commitment to give this chapter everything you have. In return, we will give you the same: everything we have, invested in your growth, your wellbeing, and the defining skills of the next decade. We have built the fastest-growing company in Europe with a team small enough that every person in it shapes the outcome. That is still true today. The next person we hire will change the trajectory of the company. IF THE MOST IMPORTANT WORK OF YOUR CAREER IS AHEAD OF YOU, THIS IS THE PLACE TO DO IT.