Windows Identity Systems Engineer

In this hands-on role you will strengthen and secure identity across a hybrid Microsoft estate, focusing on authentication, access controls, PKI, and automation. You’ll work within a technically driven trading firm to reduce identity attack paths and improve controls across on-premises and cloud environments. This position emphasizes engineering-driven identity solutions built in-house rather than off-the-shelf tools. You’ll collaborate with cross-functional teams to enhance identity security at scale.

• Engineer and improve identity security across a hybrid Microsoft estate
• Strengthen authentication and access controls across on-prem and cloud environments
• Support PKI, certificate services and identity-related security controls
• Build and improve automation across the identity platform
• Identify security gaps and help improve controls across the wider identity environment

• Strong Active Directory and Entra ID experience
• Good understanding of identity, SSO and authentication
• Experience with PKI / certificates / certificate authorities
• Strong Azure security knowledge
• Good PowerShell / automation capability
• Background in identity engineering, Microsoft infrastructure or platform security

• Active Directory
• Entra ID
• Microsoft 365
• Azure
• PKI
• Certificate Authorities