Job Description

Job Title: IT Security Officer (ITSO)
Location: Sheffield - 3 days per week in the office
Salary/Rate: Up to 500 per day inside IR35
Start Date: 05/01/2026
Job Type: Contract - 12 months
Company Introduction
The IT Security Officer (ITSO) plays a dual role in governance and service management. This position ensures security compliance and risk management across the OpenShift migration program, while also overseeing critical IT services. Responsibilities include implementing security controls, managing infrastructure standards, and driving service strategy to support scalability, reliability, and compliance.
Job Responsibilities/Objectives

• Security Governance and Compliance: Enforce security standards, review designs, and validate encryption and identity management.
• Risk Management: Identify, assess, and mitigate security risks throughout migration activities.
• Service Ownership and Strategy: Take ownership of critical services, define strategic vision for improvement and reliability.
• Service Design and Implementation: Collaborate with architects and engineers to design secure services and oversee deployments.
• Incident Management: Coordinate incident response, root cause analysis, and corrective actions.
• Infrastructure Management: Ensure patching, evergreening, backups, and compliance for on-prem and cloud systems.
• Capacity Planning: Work with SMEs and business managers to forecast demand, justify costs, and optimize performance.
• Collaboration: Engage with OpenShift, Automation, and Infrastructure teams to embed security and operational best practices.
• Vendor and Stakeholder Management: Coordinate with vendors and internal teams for service delivery and compliance.
• Continuous Improvement: Identify opportunities for cost optimization, process enhancement, and innovation.

Required Skills/Experience
The ideal candidate will have the following:

• Bachelor's degree in Computer Science, Information Technology, or related field.
• Strong experience in IT security governance, compliance, and infrastructure management.
• Strong experience in service management, IT operations, or related roles.
• Expertise in OpenShift/Kubernetes security, identity management, and encryption standards.
• Familiarity with regulatory frameworks (PCI DSS, GDPR, ISO 27001).
• Certifications such as CISSP, CISM, or equivalent preferred.
• Excellent leadership, communication, and problem-solving skills.

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.
Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

Skills Required