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Senior Security Engineer

CBSbutler Holdings Limited trading as CBSbutlerBinfield, Bracknell🇬🇧United KingdomPosted 14 Jul 2026

Quick Overview

Work Type
On Site
Schedule
Full Time
Level
Mid Senior

Job Description

Senior Security Engineer<br />Onsite in Bracknell &amp; the South<br />Eligible for DV clearance<br />£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<br />Producing technical designs and documentation for customer-driven change requests<br />Working closely with Solution Architects, Engineering Leads and operational support teams<br />Supporting service availability, resilience and security improvements<br />Troubleshooting complex infrastructure and application issues<br />Assisting SOC and 3rd Line teams with incident investigation and resolution<br />Managing and maintaining directory services, messaging systems and gateway technologies<br />Creating scripts and automation to improve operational efficiency<br />Supporting the full change lifecycle from design through deployment and support Key Technical Skills We're particularly interested in candidates with experience in several of the following areas:

Infrastructure &amp; Platforms VMware vSphere<br />Windows Server<br />Red Hat Enterprise Linux (RHEL)<br />Active Directory<br />DNS<br />Group Policy (GPO)<br />Remote Desktop Services (RDS) Security Trellix / McAfee technologies<br />SIEM platforms<br />Syslog reporting and integration<br />Antivirus technologies<br />TLS certificates and PKI concepts<br />Secure gateway technologies Linux &amp; Scripting Linux administration<br />Shell scripting<br />Regular Expressions (Regex)<br />Firewall configuration and management Directories &amp; Messaging LDAP directory services<br />LDIF<br />Email protocols and standards<br />Chat and messaging technologies (XMPP desirable) Data &amp; Integration XML<br />JSON schema<br />File format validation and analysis<br />Web protocols If you are interested in discussing this Security Design Engineer role further, apply now or send your CV to me at (url removed)

Skills

Shell
Active Directory
DNS
LDAP
PKI
VMware

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