Senior Security Engineer, Offensive Security

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Security Engineer, Offensive Security based in United Kingdom.

Join a remote-first security team focused on proactively identifying and eliminating threats across products, platforms, and cloud infrastructure. In this role, you will apply offensive security expertise to penetration testing, red teaming, threat modeling, exploit development, and security architecture. You will work closely with engineering, product, and leadership teams to transform security findings into durable improvements and resilient controls. The scope spans cloud environments, containerized infrastructure, SaaS applications, APIs, and emerging AI/ML products. You will also help build scalable security automation and strengthen security programs as the organization grows. This is an opportunity to make a direct impact on the security of products used by millions of developers worldwide.