Senior Security Engineer

Salary: £70,000 - 70,000 per year

Requirements

• Eligible for DV clearance
• Experience in several of the following areas:
• VMware vSphere
• Windows Server
• Red Hat Enterprise Linux (RHEL)
• Active Directory
• DNS
• Group Policy (GPO)
• Remote Desktop Services (RDS)
• Trellix / McAfee technologies
• SIEM platforms
• Syslog reporting and integration
• Antivirus technologies
• TLS certificates and PKI concepts
• Secure gateway technologies
• Linux administration
• Shell scripting
• Regular Expressions (Regex)
• Firewall configuration and management
• LDAP directory services
• LDIF
• Email protocols and standards
• Chat and messaging technologies (XMPP desirable)
• XML
• JSON schema
• File format validation and analysis
• Web protocols

Responsibilities

• Support the design, implementation and ongoing enhancement of secure gateway solutions
• Produce technical designs and documentation for customer-driven change requests
• Work closely with Solution Architects, Engineering Leads and operational support teams
• Support service availability, resilience and security improvements
• Troubleshoot complex infrastructure and application issues
• Assist SOC and 3rd Line teams with incident investigation and resolution
• Manage and maintain directory services, messaging systems and gateway technologies
• Create scripts and automation to improve operational efficiency
• Support the full change lifecycle from design through deployment and support

Technologies

• Active Directory
• Firewall
• Support
• JSON
• LDAP
• Linux
• RHEL
• Security
• VMware
• Web
• Windows
• XML

More

We are recruiting for a Senior Security Engineer to join a specialist cyber security programme supporting a highly secure and business-critical environment. This is a hands-on technical role that would suit an infrastructure, security, systems or application engineer looking to develop further into architecture. You will work across the full lifecycle of solutions, from design and implementation through to support, troubleshooting and continuous improvement. The role sits within a collaborative team of architects, engineers and support specialists delivering secure gateway technologies and associated infrastructure services. The position is onsite in Bracknell and the South, and includes a benefits package.

last updated 29 week of 2026