The median Security Engineer salary in United Kingdom is £75K in 2026, with a typical range from £61K to £75K. Year-on-year movement is still building as more matched salary data is published. London currently leads city pay at £84K.
What does A Security Engineer do?
A Security Engineer is responsible for designing, building, and maintaining security controls, tooling, and infrastructure to protect systems from threats.
Day-to-day responsibilities
- Hardening cloud infrastructure configurations
- Building automated security scanning pipelines
- Conducting threat modelling
- Reviewing code for security vulnerabilities
- Managing PKI and secrets management
- Integrating security into CI/CD
Very High demand+16% CISSP / CISM+15% HashiCorp Vault+17% DevSecOps pipeline integration