Developer

Job Title:                       Developer

Location:                       Flexible, UK + Hybrid Working Arrangement

Compensation:             Competitive Salary + Benefits

Role Type:                     Full time / Permanent

Role ID:                         SF70256 

Shape the Future of Nuclear Innovation

At Cavendish Nuclear we’re working to create a safe and secure world, together, and if you join us, you can play your part as a Developer, at our Warrington (Cheshire), Leicester (Leicestershire), Moor Row (Cumbria) or Bristol site.

The role

As a Developer, you’ll have a role that’s out of the ordinary. You’ll be at the heart of projects that support the Nuclear Decommissioning Authority (NDA) and its mission to safely decommission nuclear sites across the UK. You’ll work on a suite of applications that drive project performance, maintaining and enhancing existing systems while developing new solutions to meet evolving client needs.

Day‑to‑day you’ll be required to:

• Develop and maintain software applications using C#, ASP.Net, SQL Server, and JavaScript frameworks.
• Collaborate with clients and internal stakeholders to understand requirements and deliver tailored solutions.
• Enhance existing systems and design new features to improve performance and usability.
• Work closely with a small, supportive team to tackle technical challenges.
• Ensure code quality and system reliability through rigorous testing and documentation.

This is a permanent, full‑time role working 37 hours per week based in Warrington (Cheshire), Leicester (Leicestershire), Moor Row (Cumbria) or Bristol site. Hybrid working patterns are available.

Essential experience of the Developer:

• Proven experience with C#, JavaScript, and SQL.
• Strong interpersonal and communication skills.
• Background in maintaining and developing existing applications alongside new project work.

Qualifications for the Developer:

• Degree in Computer Science or related discipline (or equivalent experience).

Security Clearance

The successful candidate must be able to achieve and maintain Security Check (SC) security clearance for this role. Further details are available at United Kingdom Security Vetting: clearance levels - GOV.UK (www.gov.uk)

What we offer

• Generous holiday allowance
• Matched contribution pension scheme, with life assurance

• Access to a Digital GP, annual health check, and nutritional consultations through Aviva DigiCare+
• Employee share scheme
• Employee shopping savings portal
• Payment of Professional Fees
• Reservists in the armed forces receive 10-days special paid leave
• Holiday Trading is a benefit that allows UK Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement. This Window opens February through to March annually.
• ‘Be Kind Day’ enables employees to take one working day's paid leave a year (or equivalent hours) to undertake volunteering work with their chosen organisation or registered charity
• Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial wellbeing.

Cavendish Nuclear

As a leader within the UK nuclear industry, Cavendish Nuclear, part of Babcock International Group, provides a comprehensive range of critical nuclear solutions in clean energy, defence and civil new build and decommissioning projects. Together, we’re innovating to make nuclear safer, faster and cost-effective across the nuclear energy life cycle. Your career with us could take you anywhere within Babcock International Group – from Canada, the USA to Japan. Work with us to create a safe and secure world, together.

We are a disability confident committed employer. If you have a disability or need any reasonable adjustments during the application and selection stages, please email careers@babcockinternational.com with the subject header ‘Reasonable adjustments requirement’. We’re committed to building an inclusive culture where everyone’s free to thrive. We are happy to talk about flexible working – please ask about alternative patterns of work at interview.

Closing date:   22/01/2026

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