Security Business Partner – IT Operations

Salary: £69,922 - 76,000 per year

Requirements:

• Relevant experience supporting security controls across IT operations, including servers, endpoints, networks and cloud services
• Experience embedding security controls across hybrid infrastructure, endpoints and operational processes
• Strong understanding of secure configuration standards and security baselines, with the ability to translate them into effective operational practices
• Working knowledge of identity and access controls, including multi-factor authentication, Conditional Access and privileged access
• Understanding of network security controls, including segmentation, firewall policies, remote access and hybrid connectivity
• Strong stakeholder engagement skills, with the ability to influence technical and operational teams towards practical, risk-based security improvements
• Familiarity with data-platform and repository security controls and governance tools, such as Microsoft Purview
• Proactive mindset, with the ability to identify control gaps and use insights from vulnerabilities, incidents and audits to strengthen operational resilience

Responsibilities:

• Work with IT Operations teams to implement and embed centrally defined security controls across servers, endpoints, networks and cloud-hosted services
• Support the adoption and continuous improvement of security baselines, secure build standards and hardened configurations across on-premises and cloud environments
• Provide security oversight for endpoint and device controls, ensuring agreed standards and operational controls are applied consistently
• Promote the effective use of identity and access controls, including multi-factor authentication, Conditional Access, identity governance and privileged access controls
• Provide security input into network architecture and controls, including network segmentation, firewall policies, secure remote access and hybrid connectivity
• Deliver vulnerability management activity across the operational environment, working with internal teams and third-party providers to drive remediation
• Report on vulnerability exposure and remediation progress in line with agreed governance and risk frameworks
• Work with the Service Desk, IT Operations and the managed Security Operations Centre provider to maintain appropriate logging, alerting and response capabilities across infrastructure services
• Help embed data-platform security controls, including Microsoft Purview, ensuring infrastructure configurations, access controls and monitoring align with data protection and governance requirements
• Work with Data and Infrastructure teams to strengthen access controls, encryption, auditing and monitoring for sensitive data repositories
• Provide ongoing security oversight across IT service delivery, helping ensure security controls remain effective and consistently applied

Technologies:

• Cloud
• Firewall
• Support
• Network
• Security

More:

We are A2Dominion and we are recruiting a Security Business Partner – IT Operations to join our Cyber Security team in Ealing on a hybrid basis, with some office attendance required. This is a permanent full-time role (35 hours per week, Monday to Friday) with a salary of £69,922–£76,000 depending on experience. We offer a wide range of staff benefits including 25 days holiday plus Bank Holidays rising to 28 days with 3 years of service, up to 8% contributory pension, flexible working, and an annual allowance of up to £300 for health and lifestyle benefits for you and your family. We are proud to be a Disability Confident Employer, welcome applications from people of all backgrounds, and offer an inclusive and accessible recruitment process with reasonable adjustments available. We value diversity, embrace flexibility, and are a family-friendly employer, and we want everyone to feel they belong here.

last updated 38 week of 2026