Manual Tester (DV Security Clearance)

CGI; England; On-site; GBP 40,000 - 60,000; Full time

Job summary

A technology consulting firm in the UK is seeking an experienced Manual Tester to ensure the quality of secure systems. The role requires DV Security Clearance and includes responsibilities such as defining test plans, executing tests, and collaborating with a cross-functional team. Candidates should have a background in testing within a sensitive environment and be well-versed in Continuous Integration tools.

Benefits

Health and well-being support

Opportunities for skill development

Qualifications

• Prior experience in a dedicated testing role, ideally within a secure or mission-critical environment.
• Experience with Continuous Integration tools.
• Proven ability to design and run manual or automated tests.

Responsibilities

• Define comprehensive test plans for infrastructure and DevOps workflows.
• Collaborate with teams during sprint planning to ensure test coverage.
• Design and execute manual tests for infrastructure components.

Skills

Test Analyst experience

Continuous Integration tools

Manual and automated testing

Test management tools

Analytical skills

Communication skills

Agile frameworks

Education

ISTQB Foundation Certification

Tools

Selenium

Robot Framework

Docker

Kubernetes

Terraform

Jira

Job description

Overview

Manual Tester (DV Security Clearance)

Are you an experienced Test Analyst with a background in secure or classified programmes, ready to contribute to projects of national importance? Step into a role where you\'ll challenge the complex to strengthen security and help protect what matters most. As a DV Cleared Test Analyst, you\'ll work on highly sensitive programmes, ensuring the quality and reliability of systems that underpin the UK's national interests.

The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability. We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client.

Due to the highly secure nature of this role, you must either already hold, or be eligible to obtain, Developed Vetting (DV) - the highest level of UK Security Clearance. To be eligible, you must be a sole UK national (i.e. not hold dual nationality). Please note that this role is based full-time on a secure client site near Reading due to the sensitive nature of the work involved.

Responsibilities

• Define and maintain comprehensive test plans for infrastructure and DevOps workflows, including environment provisioning, CI/CD pipelines, container orchestration, and cloud services.
• Collaborate with product owners, DevOps engineers, and architects during sprint planning to ensure test coverage aligns with user stories and infrastructure-as-code deliverables.
• Design, develop and execute manual tests for infrastructure components (e.g., server builds, network configurations, storage systems) and automated scripts for regression, integration, and acceptance testing.
• Author and maintain automated test suites using tools such as Selenium, Robot Framework, or custom Python/Bash scripts, integrating with Jenkins, GitLab CI/CD, or Azure DevOps pipelines.
• Provision and validate ephemeral test environments using Docker, Kubernetes, Terraform, or CloudFormation, ensuring consistency with production configurations.
• Execute infrastructure smoke tests, configuration drift checks, and idempotency validations through IaC testing frameworks (e.g., Terratest, InSpec).
• Embed automated test execution within build pipelines to trigger unit, integration, and end-to-end tests on code commits and pull requests; monitor pipeline health and test results.
• Lead root-cause investigations for infrastructure incidents, producing clear post-mortem reports and remediation recommendations.
• Log, triage, and track defects in Jira (or equivalent), ensuring clear reproduction steps, priority ranking, and lifecycle management through to closure.
• Champion infrastructure and security testing best practices, including vulnerability scanning, compliance checks, and disaster-recovery validations.
• Actively participate in daily stand-ups, sprint reviews, backlog grooming, and retrospectives, bringing a testing perspective to ensure quality is shifted left.

Required qualifications

• Prior experience in a dedicated testing role, ideally within a secure or mission-critical environment.
• Experience with Continuous Integration tools.
• Proven ability to design and run manual or automated tests.
• Proficiency with test management tools such as ALM or TestRail.
• ISTQB Foundation Certification (strong asset).
• Familiarity with Agile frameworks such as SAFe.
• Strong analytical and communication skills; ability to perform problem investigation and root-cause analysis.
• Ability to work collaboratively within a cross-functional team in a sensitive, secure environment.

Together, as owners, CGI aims to turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. You\'ll be supported by leaders who care about your health and well-being and provide opportunities to deepen your skills.