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Senior Cyber Security Engineer We are seeking an experienced Senior Cyber Security Engineer to support a defence client in a hands on role combining security engineering, threat detection and incident response.
This opportunity would suit a technically strong cyber security professional with experience across both offensive and defensive security, capable of operating independently while working closely with infrastructure and wider IT teams to strengthen security across hybrid environments.
Key Responsibilities
- Monitor and manage security alerts across endpoint detection and response (EDR/XDR), Data Loss Prevention (DLP) and conditional access.
- Conduct daily security checks, review vulnerability scans, manage tickets and maintain accurate security logs.
- Support vulnerability remediation activities, working alongside infrastructure engineers to address identified risks.
- Contribute to Microsoft-centric security projects and help improve the organisation's security posture.
- Support email security, privileged access management, password management and Microsoft Sentinel capabilities.
- Participate in IT change management processes, including representing security requirements at change boards.
- Identify, investigate and respond to potential threats and incidents across on-premises and cloud environments.
- Ensure security controls align with relevant regulatory, compliance and governance standards.
Essential Experience
- Strong experience across both red and blue team activities, with a practical understanding of purple teaming.
- Experience with vulnerability management, remediation and current cyber security threats.
- Hands-on knowledge of EDR/XDR, email security and Data Loss Prevention. xsabvtc
- Familiarity with Microsoft-based environments, including Microsoft Sentinel and conditional access.
- Understanding of privileged access management and pas
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Senior Cyber Security Engineer in Bristol employer: Frontier Resourcing
Join a leading high-tech defence organisation in Bristol, where innovation meets purpose. As a Systems Architect in Electronic Warfare, you will thrive in a collaborative work culture that values technical excellence and offers ample opportunities for professional growth. With a focus on cutting-edge technology and a commitment to employee development, this role provides a unique chance to contribute to vital defence systems while enjoying the benefits of a supportive and dynamic team environment.
