Senior Security Engineer

Job in Bracknell, Berkshire, RG12 0AB, England, UK

Listing for: CBSbutler Holdings Limited trading as CBSbutler

Full Time position
Listed on 2026-06-06

Job specializations:

Engineering
Systems Engineer, Cybersecurity
IT/Tech
Systems Engineer, Cybersecurity

Salary/Wage Range or Industry Benchmark: 60000 - 70000 GBP Yearly GBP 60000.00 70000.00 YEAR

Senior Security Engineer
Onsite in Bracknell & the South
Eligible for DV clearance
£60-70k per annum + benefits package

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'll 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.

What You'll Be Doing

Supporting the design, implementation and ongoing enhancement of secure gateway solutions
Producing technical designs and documentation for customer-driven change requests
Working closely with Solution Architects, Engineering Leads and operational support teams
Supporting service availability, resilience and security improvements
Troubleshooting complex infrastructure and application issues
Assisting SOC and 3rd Line teams with incident investigation and resolution
Managing and maintaining directory services, messaging systems and gateway technologies
Creating scripts and automation to improve operational efficiency
Supporting the full change lifecycle from design through deployment and support

Key Technical Skills Infrastructure & Platforms

VMware vSphere
Windows Server
Red Hat Enterprise Linux (RHEL)
Active Directory
DNS
Group Policy (GPO)
Remote Desktop Services (RDS)

Security

Trellix / McAfee technologies
SIEM platforms
Syslog reporting and integration
Antivirus technologies
TLS certificates and PKI concepts
Secure gateway technologies

Linux & Scripting

Linux administration
Shell scripting
Regular Expressions (Regex)
Firewall configuration and management

Directories & Messaging

LDAP directory services
LDIF
Email protocols and standards
Chat and messaging technologies (XMPP desirable)

Data & Integration

XML
JSON schema
File format validation and analysis
Web protocols

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