Senior Product Security Engineer

Descripción del puesto

About Numan    Founded in 2018, we’ve already grown to be a 300+ team distributed across the globe, united by a singular mission: empowering people to take control of their health.   Numan is transforming health: we’ve built a cutting-edge platform that integrates diagnostics, medication, supplements, digital programmes, and doctor consultations. Giving people the tools they need to maximise life.   To deliver on our transformative mission, we are guided by our 5 company values:    • Patients first. • Learn fast. • Own the quality. • Succeed together. • Care deeply.   Backed by top-tier investors, Numan is already having a positive impact on hundreds of thousands of patients here in the UK, and we want you to help us deliver this mission! The Role We build and operate a regulated digital health platform. Patients trust us with clinical data, identity documents and payment details, and our clinicians trust our systems to be correct. That makes application security a patient safety concern, not just a compliance one. We are shipping quickly, adopting AI and agentic systems across clinical operations and patient-facing products, and running a lean security function that scales through engineering leverage rather than headcount. We need a senior engineer who can go deep on design and code, then bring the rest of the business along with them. This is a hands-on individual contributor role with genuine influence over how the platform is built. The Team You will work within the Cyber Security function, collaborating directly with Engineering, Product, Clinical, Legal, and the executive team. Security at Numan is not a gatekeeping function — it scales through influence, credibility, and being useful early. You'll be: Running threat modelling sessions with product and engineering teams on new features and architectural changes — STRIDE-based, with clinical safety, abuse, and business-logic threats kept in mind alongside the technical ones.