IT&T Test Engineer

Experis; Corsham; Hybrid; GBP 98,000 - 133,000; Full time

Job summary

Experis IT&T is seeking an experienced IT&T Test Engineer to support a high-profile, secure technology programme within a defence and national security environment. You will provide hands-on testing across the full lifecycle, developing verification, validation, and compliance testing to support solution acceptance and operational readiness.

This role focuses on creating, executing, and reporting test activities spanning infrastructure, security, identity management, interoperability,

Qualifications

• Proven experience in Test Engineering across planning, scripting, execution and reporting.
• Experience producing detailed test documentation and evidence packs.
• Strong background in functional, non-functional, integration and regression testing.
• Experience in validation and acceptance activities within complex enterprise/infrastructure.
• Understanding of IAM concepts (Authentication, Authorization, RBAC).
• Knowledge of PKI, certificates, and trust frameworks.
• Active UK Security Clearance (SC) is required.

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.

Skills

Test planning

Test script development

Test execution

V&V plans

Interoperability testing

IAM testing

PKI testing

Security testing

Documentation

Agile/Waterfall

Defect management

Test environments

Tools

JIRA

Confluence

VMware

VDI

Job description

IT&T Test Engineer

Day Rate: 625 per day (Umbrella)

Location: Corsham (Hybrid, 3 days onsite per week)

Clearance: Active SC Clearance Required

Contract Length: 9 Months

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.

This role will focus on the creation, execution, and reporting of test activities spanning infrastructure, security, identity management, interoperability, and information exchange capabilities within a highly regulated environment.

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.

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