Security Tester – Contract (SC Cleared | Hybrid Leeds | Inside IR35)
Is this the next step in your career Find out if you are the right candidate by reading through the complete overview below.
Up to £375 per day (Inside IR35)
Hybrid – two days per week on site in West Yorkshire
Initial contract until August 2026
Active SC clearance required
Overview
We are seeking an experienced Security Tester to join an established testing team working on large scale, secure systems within the public sector. The role focuses on manual security testing, vulnerability management, and cyber resilience, supporting ongoing work around identity and access management and data protection.
This is a hands on position where you will identify risks, validate security controls, and help deliver robust and resilient solutions. You will work closely with technical teams and contribute to improving the organisation's overall security posture.
Key Responsibilities
Identify and report security gaps across systems, applications and processes
Develop and execute comprehensive cyber security test strategies
Perform manual testing of systems, APIs and applications
Conduct vulnerability scanning, prioritisation and remediation validation
Validate multi factor authentication and related mechanisms including OAuth, SAML and JWT
Support disaster recovery and restore testing to ensure system resilience
Analyse and interpret security dashboards for monitoring and reporting
Promote security awareness and assist in developing the team's cyber testing capability
Technical Skills and Experience
Essential
Strong background in manual testing of systems and APIs
Practical experience with security testing and vulnerability management
Scripting skills in Python or JavaScript
Familiarity with tools such as Jira, Confluence, Jenkins and Splunk
Understanding of Azure security risks, particularly relating to storage and data protection
Experience with disaster recovery and backup validation testing
Desirable
Knowledge of authentication protocols such as OAuth, SAML and JWT
Experience within healthcare or other regulated environments
Clearance Requirement
Applicants must hold active and transferable SC clearance that meets the following criteria
Granted within the last ten years
Used on a government project within the last twelve months
Must have more than twelve months validity remaining
Ideal Candidate
This position is suited to a hands on Security Tester or Quality Assurance Engineer with strong manual testing experience, solid understanding of vulnerability management and cyber resilience, and recent exposure to Azure and identity management security. The successful candidate will be proactive, detail focused and capable of working effectively within a secure public sector environment.
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Remote working/work at home options are available for this role.