Staff Security Engineer

We are seeking a UK-based Staff Security Engineer to serve as a technical leader within our Security Operations and Response Team. As a senior technical responder, you will lead our incident response program, proactively monitor Marqeta's environment for cyber threats, and serve as incident commander during security events of all severity levels. You will establish response methodologies aligned with the NIST Incident Response Lifecycle, maintain the cybersecurity incident response plan, and drive continuous improvement of our security operations. This position requires extensive expertise in incident response, digital forensics, threat hunting, and security monitoring technologies. You will provide technical leadership across the organization, mentor team members, and participate in 24x7 on-call rotations. The role reports to the Manager of Security Operations and Response.

We work Flexible First. This role can be performed remotely anywhere in the UK, or from our London, ...