Senior Manual Tester (DV Security Clearance)

Position Description

At CGI, you will play a key role in safeguarding the quality and reliability of critical enterprise platforms that support some of the UK’s most important programmes. As a Tester, you will help ensure systems perform as intended, meet user needs, and deliver measurable value. Working directly on client site in Corsham, you will be trusted to take ownership of testing activities, collaborate closely with Agile delivery teams, and continuously improve how quality is embedded across the delivery lifecycle. With the support of a collaborative, expert community, you will be empowered to apply your experience, shape best practice, and make a meaningful impact in a secure and mission-focused environment.

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go.

Please note this role is base

d full time on client site near Chippenham. Due to the secure nature of the programme, you will need to hold DV or HLC clearance. Candidates with SC clearance who are willing to progress to HLC/DV will also be considered.

Your future duties and responsibilities

In this role, you will be responsible for ensuring the quality, usability, and reliability of an enterprise IT platform. You will plan, design, and execute testing activities across the delivery lifecycle, identifying defects early and validating that solutions meet both technical and business requirements. Working as part of Agile teams, you will contribute to continuous improvement and help ensure releases are robust, compliant, and fit for purpose.

You will take ownership of test documentation, strategies, and evidence, collaborating with developers, analysts, and stakeholders to drive high standards and consistent outcomes. Supported by CGI’s strong quality culture, you will be encouraged to refine processes, share expertise, and continually enhance how testing is delivered.

Key responsibilities include:

• Design & Execute functional, regression, system, integration, and UAT testing

Develop & Maintain test cases, scenarios, scripts, and test data

Identify & Manage defects, including logging, tracking, retesting, and validation

Contribute & Support test strategy and test planning activities

Validate & Confirm fixes prior to release

Document & Evidence testing activities for audit and compliance

Required Qualifications To Be Successful In This Role

You will have proven experience testing enterprise IT platforms and a strong understanding of structured testing approaches within service-focused environments. You will be detail-oriented, organised, and confident communicating findings clearly to a range of stakeholders.

Essential qualifications include:

• Proven experience as a Manual Tester or QA Analyst on enterprise systems
• Strong ability to write clear, structured test cases and defect reports
• Experience using test and defect management tools (e.g. Jira, Azure DevOps)
• Knowledge of ITIL 4 concepts and service management environments
• Experience using documentation tools such as Confluence or SharePoint
  
  

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team—one of the largest IT and business consulting services firms in the world.