Security Engineer L3

About the Role We are seeking an experienced L3 Security Engineer to lead security engineering, architecture, and continuous improvement across multiple customer environments within a Managed Service Provider (MSP). This senior technical role goes beyond security monitoring and alert triage. You will design and implement security controls, lead vulnerability remediation, strengthen compliance, resolve complex security incidents, and establish consistent security standards across customer environments.

Working closely with infrastructure teams, service desk engineers, Account Managers, and customers, you will take ownership of security outcomes while mentoring junior engineers and driving a proactive approach to cybersecurity. About the Client You will be working with a technology and managed services provider supporting multiple customer environments. The organisation is focused on strengthening cybersecurity, improving service delivery, and developing scalable security standards that help customers reduce risk and maintain resilient IT environments.