Test Manager
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Sizewell C’s business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Overall, whilst the Company is in the construction phase, the Boards’ principal focus is on the development and construction of Sizewell C on time, on budget and to the highest quality and safety standards. The Company is maturing to meet all these requirements.
Sizewell C is economically regulated by OFGEM under the RAB model similar to other UK electricity distribution networks and Thames Tideway.
Sizewell C construction strategy is to replicate the design of Hinkley Point C, using the majority of the same supply chain, but innovating in the way it is delivered to achieve savings in time and cost of around 20%. The CCO will need to be guided by and incorporate lessons learned from the Hinkley Point C commercial delivery to achieve Sizewell C’s ambition.
Following Financial Completion and Revenue Commencement, Sizewell C is fully funded and is owned by; The Secretary of State for Energy Security and Net Zero representing HM Government, La Caisse, Centrica, EDF and Amber Infrastructure.
Test Manager
Location: Based in London/Manchester/Suffolk/Bristol on a hybrid basis.
Contract: Permanent, full-time.
Salary: £80,000 - £90,000k dependant on experience, plus benefits
Benefits include:
- Annual Leave: 28 days per annum, increasing to 30 days after 5 years of service, plus bank holidays.
- Bonus: 5% annual bonus.
- Pension Contributions: Defined Contribution Pension Scheme with up to 7.5% employee contribution 15% employer contribution.
Closing Date: Friday 10th April 2026.
Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK’s largest and most important energy projects.
About the Role
As the Test Manager, you will lead the end-to-end testing strategy across enterprise IT systems and digital platforms supporting the Sizewell C programme. You’ll work closely with delivery partners, vendors, and internal stakeholders to ensure systems meet the highest standards of quality, security, and performance.
About You
- Proven experience as an Test Manager on large-scale, complex programmes
- Strong knowledge of test methodologies, tools, and frameworks (e.g., Agile, DevOps, Waterfall)
- Experience with enterprise systems (ERP, document management, asset systems, etc.)
- Demonstrated ability to manage multiple stakeholders and vendors
- Familiarity with regulated environments (e.g., energy, utilities, infrastructure)
- Excellent leadership, communication, and reporting skills
Why Join Us?
- Be part of one of the most important low-carbon energy projects in the UK.
- Work in a mission-driven environment that values innovation, integrity, and long-term sustainability.
- Competitive salary, comprehensive benefits, and opportunities for career development.
- Flexible and hybrid working options.
Key Competencies
Behavioural Competences
Humility
- Recognise the value brought from different cultures and experiences
Positivity
- Positively challenge poor quality and performance
- Identify solutions at the lowest possible level
- Encourage tier 1s and others to bring new ideas forward
Respect
- Value the rules and environment in which we operate
- Give and receive feedback with respect
- Embrace and engage with new people and ideas
Solidarity
- One team, working closely together and helping each other
- Empowered teams always looking forward.
- Shared responsibility for delivery the project outcomes
Clarity
- Communicate clearly and consistently
- Promote collaboration and team alignment
- Clearer and faster decision making
- Drive simplification at all levels
If this sounds like the next step in your career, we’d love to hear from you. Apply today.
When joining Sizewell C, you may wonder why you are contacted by colleagues with an EDF email or see the EDF logo on portals that you access and/or documentation you receive; this is because we have partnered with EDF for the provision of a number of support services whilst we complete a successful transition out of the EDF group.
At Sizewell C we encourage and embrace diversity and how it can improve our experience and performance at work. It is a requirement that those who join us have the right to work in the UK. Whilst sponsorship may be a possibility that we can explore, we are fully committed to local recruitment where possible, and those already holding the right to work in the UK.
To be appointed to this role, you will need to meet the criteria for Security Vetting, which will, ordinarily, require you to have been a resident of the UK for at least three of the past five years.