Test Manager

For almost two decades, Cornerstone's infrastructure has quietly supported the UK's mobile networks. Whilst we continue to strengthen that foundation and extend its reach, we're in an exciting period of acceleration and product development that will see us enable more connectivity and compute to more communities and industries across the UK.

As Cornerstone continues to evolve and invest in technology, ensuring the quality, reliability and stability of our systems has never been more important. This role safeguards the successful delivery of strategic business change by establishing effective testing frameworks, managing risk, and ensuring solutions are fit for purpose before deployment. You'll influence stakeholders across the business, drive consistent quality standards, and help create a culture where quality is everyone's responsibility.

Your expertise will ensure technology changes are delivered confidently, efficiently and with minimal operational risk.

• Define and Lead Testing Strategy Create and implement enterprise-wide QA and testing approaches across projects and programmes, ensuring consistency, governance and best practice.
• Deliver End-to-End Test Management Own test planning, execution, defect management and reporting across multiple initiatives, ensuring all solutions meet defined quality standards.
• Manage Portfolio Priorities Work closely with senior business stakeholders to manage testing priorities, expectations, risks and dependencies across competing programmes of work.
• Embed Quality Throughout Delivery Develop project-specific test strategies and ensure quality is built into every phase of the development lifecycle.
• Support Go-Live Readiness Lead testing during project delivery and pre-production phases, including writing and executing test scripts and supporting User Acceptance Testing (UAT).
• Manage Risks and Issues Identify, track and mitigate testing risks and issues, providing timely escalation and clear recommendations where required.
• Collaborate Across Teams Build trusted relationships with internal teams, delivery partners and suppliers to drive successful testing outcomes and continuous improvement.
• Drive Supplier Performance Monitor and manage third-party testing and delivery partners, ensuring adherence to agreed standards, quality expectations and service levels.
• Ensure Compliance and Governance Support Health & Safety, Business Continuity, Environmental and Information Security requirements, contributing to Cornerstone's ISO and compliance obligations.

• Experience in QA and Test Management within software implementation projects.
• Significant experience designing and implementing testing strategies for complex programmes and projects.
• Strong knowledge of Agile and Waterfall delivery methodologies.
• Hands-on experience with testing tools, automation frameworks and test management platforms.
• Proven experience managing third-party suppliers and service providers.
• Strong understanding of Dev Ops practices and dependency management .
• Extensive experience in risk and issue management within project delivery environments.
• Ability to manage competing priorities across multiple initiatives.
• Exceptional stakeholder management skills with the ability to influence at all levels of the organisation.
• Strong planning, organisational and problem-solving capability.
• Excellent written and verbal communication skills.
• Experience managing and leading teams in matrix environments.
• Project or Programme Management experience would be advantageous .
• Honours Degree (or equivalent) in Computer Science, Engineering or a related discipline.

• Competitive salary and bonus opportunity
• 30 days annual leave
• Competitive pension scheme and life insurance
• Hybrid working (3 days per week in Theale)
• Private medical insurance including dental and optical cover
• Cycle to Work scheme
• Electric Car scheme
• Retail and lifestyle discounts
• Refer-a-friend programme

Our commitment to Equity, Diversity and Inclusion (EDI) is fundamental to our success. We strive to cultivate an inclusive environment where every employee feels valued, respected and empowered. By embracing unique perspectives and experiences, we drive…