Senior Security Engineer – Identity/Authentication – Financial Markets A trading house are building a new authentication and access management capability and have an opportunity for an experienced Linux engineer with a strong security lens to build out foundational elements of the platform. This is full lifecycle design, build, implement activity, for someone with a strong understanding of secure Linux builds, identity/access management for on-prem and cloud-based systems, and be able to solution based on a strong understanding of HashiCorp Vault, industry standard secure authentication protocols, containerised and automated infrastructure-as-code architectures, and DevSecOps methodologies 15 years systems or security engineering experience in Linux-based environment Deep understanding of identity and access management, and authentication Strong understanding of HashiCorp vault (ideally implementation from scratch) Strong understanding of secure authentication protocols (Kerberos, LDAP) Excellent communication, teamwork, documentation and stakeholder skills Degree educated or higher from a leading academic institution This is a £650-750/day role based London initially for six months (inside IR35).