Security Consultant (Network & Change Assurance) - Contract

Reference: g7iqljk7zfr01v26qj6r

We are seeking an experienced Security Consultant to support network security and change assurance activities within a complex technology environment. This contract role will provide independent oversight of security-related changes, helping to ensure that proposed modifications to network infrastructure, systems and services are appropriately assessed, documented, tested and implemented in line with agreed security standards and risk controls.

You will review change requests, technical designs and implementation plans to identify security implications, dependencies and potential operational risks. Working closely with infrastructure, network, cyber security, architecture and service management teams, you will challenge assumptions, recommend appropriate controls and confirm that security requirements are addressed throughout the change lifecycle. Responsibilities will include assessing firewall and connectivity changes, reviewing access controls, validating segregation and monitoring arrangements, supporting risk acceptance processes, and providing assurance evidence for governance forums and audit requirements. You may also contribute to incident reviews, vulnerability remediation, security improvement initiatives and the development of repeatable assurance processes.

The successful candidate will have demonstrable experience in network security, cyber security assurance, change governance or a closely related consulting role. Strong knowledge of network architecture, firewalls, routing, remote access, identity and access management, vulnerability management and security risk assessment is required. Experience working with formal IT service management and change control frameworks, together with the ability to interpret technical documentation and translate findings for both technical and non-technical stakeholders, will be essential. Relevant certifications such as CISSP, CISM, CCNP Security, ISO 27001 or ITIL are advantageous. You will be analytical, organised and confident in constructively challenging decisions, with excellent written and verbal communication skills. The contract offers the opportunity to work across high-impact security and transformation activities in a collaborative, delivery-focused environment.

COMPETITIVE SALARY
Added 09/10/2026
Reference: g7iqljk7zfr01v26qj6r

Security Consultant (Network & Change Assurance) - Contract

London, England, United Kingdom Contract Security Consultant

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