Cyber Security Analyst

Location: Oxfordshire

Cyber Security analyst Until December £45 - £50/Hr Inside IR35 Oxfordshire Clearance: SC We are seeking a Cyber Security Analyst for our Government client based in Oxfordshire. This role will be office based 2 days per week and the remainder remote. The Cyber Security analyst role will be an initial contract until 18/12, paying between £45- £50/Hr Inside IR35. This role is inside IR35 - Due to the service of the role it will now be based on an Umbrella solution.

Clearance: SC Role Profile We are seeking an experienced OT Cyber Security Analyst to support and strengthen cyber security across industrial and operational technology environments. This role focuses on securing critical systems through the deployment, management, and enhancement of OT security controls, while helping drive continuous improvements in monitoring, governance, and risk management practices. The successful candidate will play a key role in delivering practical security solutions across ICS and OT networks, ensuring systems remain resilient against evolving cyber threats.

You will work closely with operational teams, engineers, and third-party providers to embed security best practice across the environment and support compliance with recognised industry standards and frameworks. This is a hands-on technical role with a strong governance element, involving everything from security implementation and risk assessments through to documentation, standards development, and supplier engagement. Exposure to SIEM/SOC integration within OT environments would be beneficial.

Key Responsibilities Implement and support OT cyber security controls across industrial environments Assist in the development and maintenance of OT security standards, procedures, and governance documentation Carry out OT security assessments, identify vulnerabilities, and support remediation activities Work with engineering and operational teams to improve security posture across ICS infrastructure Support network segmentation initiatives and secure industrial communications Collaborate with MSPs and external cyber security partners to ensure effective service delivery Contribute to ongoing monitoring and incident detection capabilities within OT environments Ensure alignment with recognised cyber security standards and regulatory expectations Essential Experience Background working within industrial sectors such as oil & gas, rail, manufacturing, utilities, or chemical processing Experience securing OT or ICS environments within critical infrastructure settings Strong understanding of OT cyber security frameworks including IEC 62443, NIST CSF, CAF, and ISO 27001 Experience implementing security controls and improving OT cyber maturity Knowledge of industrial networking, segmentation principles, and OT protocols Proven experience performing risk assessments, gap analysis, and remediation planning Ability to work effectively with technical operations and engineering stakeholders Experience supporting or interfacing with SIEM/SOC capabilities in OT environments Strong written and verbal communication skills, including technical documentation and policy creation Ability to start within a short notice period (maximum 2 weeks)

Desirable Experience deploying OT monitoring, asset discovery, or threat detection tools Understanding of regulatory and compliance requirements within critical infrastructure environments Familiarity with IT service management practices and project delivery methodologies If you are interested in the above, hit the Apply now button! Cyber Security Analyst, Security Analyst, Cyber Security Analyst, SIEM, Cyber Security Analyst, SOC, Cyber Security Analyst, Cyber Security Circle Recruitment is acting as an Employment Agency in relation to this vacancy.

Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter - @ and Linked In - Circle Recruitment.