IT&T Test Engineer

Overview

We are seeking an experienced IT&T Test Engineer to support a high-profile, secure technology programme within a defence and national security environment.

The successful candidate will provide hands-on engineering support across the full testing lifecycle, developing and executing verification, validation, interoperability, and compliance testing activities to support solution acceptance and operational readiness.

Key Responsibilities

• Develop, maintain, and execute test scripts to support verification, validation, and acceptance activities.
• Support the development and execution of Validation and Verification (V&V) plans.
• Create functional, non-functional, integration, interoperability, and regression test scenarios.
• Execute testing across infrastructure, security, identity management, policy enforcement, and interoperability components.
• Conduct interoperability testing between multiple interconnected systems and services.
• Validate information-sharing capabilities, policy-based controls, auditability, and traceability requirements.
• Support testing of Identity and Access Management (IAM), Public Key Infrastructure (PKI), and trust services.
• Produce and maintain comprehensive test documentation including: Test Plans, Test Scripts, Test Procedures, Defect Reports, Test Reports, Evidence Packs.
• Capture, manage, and report defects, supporting investigation and root cause analysis activities.
• Support the installation, configuration, and validation of test and demonstration environments.
• Collaborate closely with architects, engineers, security specialists, and delivery teams.
• Maintain test evidence to support assurance, compliance, acceptance, and audit requirements.
• Support compliance validation activities and stakeholder-witnessed demonstrations.
• Document test outcomes, lessons learned, and recommendations.
• Contribute to the continuous improvement of testing processes, tooling, and methodologies.
• Deliver testing activities in line with programme schedules, quality standards, configuration management processes, and security requirements.

Essential Skills & Experience

• Proven experience in Test Engineering, including test planning, test script development, execution, and reporting.
• Experience producing detailed test documentation and evidence packs.
• Strong background in functional, non-functional, integration, and regression testing.
• Experience supporting validation and acceptance activities within complex enterprise or infrastructure environments.
• Understanding of systems integration testing and end-to-end service validation.
• Experience testing infrastructure, networking, security, or identity management solutions.
• Good understanding of Identity and Access Management (IAM) concepts, including: Authentication, Authorisation, Role-Based Access Control (RBAC).
• Knowledge of Public Key Infrastructure (PKI), digital certificates, and trust frameworks.
• Experience working within secure and regulated environments.
• Strong analytical, troubleshooting, and communication skills.
• Ability to manage changing priorities and meet project deadlines.
• Experience working within Agile and/or structured project delivery environments.
• Proficiency with Microsoft Office applications.
• Active UK Security Clearance (SC) is required, with willingness to undergo higher levels of clearance if required.

Desirable Skills & Experience

• Experience of interoperability testing within defence, government, national security, or highly secure environments.
• Knowledge of federated networking, interoperability frameworks, and information-sharing standards.
• Experience validating complex information-sharing and data interoperability solutions.
• Experience with Federated Identity and Access Management (FIAM) solutions.
• Knowledge of data-centric security concepts, policy enforcement technologies, and metadata-driven information controls.
• Experience supporting PKI implementations and certificate-based authentication services.
• Experience with virtualised environments such as VMware, VDI, and multi-tenanted platforms.
• Familiarity with large-scale secure enterprise systems and networks.
• Experience using test management and collaboration tools such as JIRA and Confluence.
• Experience supporting formal verification, validation, demonstration, and acceptance activities.
• Relevant certifications such as: ISTQB Foundation or Practitioner, CompTIA Security+, VMware VCP, Equivalent industry-recognised certifications.
• Familiarity with Agile (SAFe) and Waterfall delivery methodologies.