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- Tasks: Lead complex mechanical engineering tasks and guide junior engineers in a collaborative environment.
- Company: Cavendish Nuclear is a leader in the UK nuclear industry, innovating for a safer future.
- Benefits: Enjoy hybrid working, generous holidays, health support, and an employee share scheme.
- Why this job: Make a real impact on public sector projects while developing your engineering skills.
- Qualifications: Engineering degree and proven experience in delivering full project lifecycle activities required.
- Other info: Flexible working options available; we value inclusivity and support for all employees.
The predicted salary is between 36000 - 60000 £ per year.
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Job Title: Senior Mechanical Engineer
Compensation: Competitive + Benefits
Role Type: Full time / Permanent
Role ID: SF66847
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 Senior Mechanical Engineer.
Job Title: Senior Mechanical Engineer
Location: Either Warrington, Bristol, Newbury or Preston
Compensation: Competitive + Benefits
Role Type: Full time / Permanent
Role ID: SF66847
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 Senior Mechanical Engineer.
The role
As a Senior Mechanical Engineer, you’ll have a role that’s out of the ordinary. This role will contribute to a high-impact public sector Defence Nuclear infrastructure initiative focused on enhancing operational resilience and sustainability across critical systems. The project involves complex mechanical systems integration, requiring innovative engineering solutions within a multidisciplinary team.
Day-to-day, you’ll lead the delivery of complex mechanical engineering tasks, applying deep technical expertise to solve challenging problems, produce and review high-quality documentation, and guide junior engineers, while collaborating across disciplines to ensure project milestones are met with precision and integrity.
- Foster collaboration across engineering and cross-functional teams to ensure cohesive project delivery and technical alignment.
- Build and maintain strong relationships with customers, providing clear communication and technical insight to support project progress and business development.
- Apply relevant procedures, codes, and standards rigorously to all engineering activities, ensuring compliance and technical excellence.
- Lead the production and review of engineering outputs—including calculations, drawings, models, and reports—while maintaining design integrity throughout the lifecycle.
- Identify and manage project risks, contribute to safety assessments, and support continuous improvement through technical evaluations and process enhancements.
This role is full time, 37 hours per week provides hybrid working arrangements with 3 days in the office/onsite and 2 days working from home.
Essential Experience Of The Senior Mechanical Engineer
- Proven experience delivering engineering activities across the full project lifecycle, from concept design through to implementation.
- Demonstrated ability to work effectively within multidisciplinary teams, contributing to complex technical solutions and project outcomes.
- Strong track record of producing and reviewing detailed engineering documentation, including calculations, drawings, and technical reports.
- Excellent communication skills with the ability to engage confidently with stakeholders and customers to resolve technical and delivery challenges.
Qualifications For The Senior Mechanical Engineer
- Engineering degree (or equivalent qualification) in relevant engineering discipline, with significant demonstrable experience
Security Clearance
The successful candidate must be able to achieve and maintain Standard (BPSS) / Security Check (SC) security clearance for this role. Further details are available at United Kingdom Security Vetting: clearance levels – GOV.UK ( 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 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.
#CAVDESTNUC
#CAV-MECHCAM
Seniority level
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Seniority level
Mid-Senior level
Employment type
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Employment type
Full-time
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Job function
Engineering and Information Technology
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Senior Mechanical Engineer employer: Cavendish Nuclear
Contact Detail:
Cavendish Nuclear Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Mechanical Engineer
✨Tip Number 1
Network with professionals in the nuclear engineering field. Attend industry events or join relevant online forums to connect with current employees at Cavendish Nuclear. This can give you insights into the company culture and potentially lead to referrals.
✨Tip Number 2
Familiarise yourself with the latest trends and technologies in mechanical engineering, especially those related to nuclear applications. Being knowledgeable about current innovations can help you stand out during discussions with interviewers.
✨Tip Number 3
Prepare to discuss your experience with multidisciplinary teams. Highlight specific projects where you collaborated with other engineering disciplines, as this is crucial for the role at Cavendish Nuclear.
✨Tip Number 4
Research Cavendish Nuclear's recent projects and initiatives. Understanding their current focus areas will allow you to tailor your conversations and demonstrate your genuine interest in contributing to their mission.
We think you need these skills to ace Senior Mechanical Engineer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights relevant experience in mechanical engineering, particularly in complex systems integration and multidisciplinary teamwork. Use specific examples that demonstrate your problem-solving skills and technical expertise.
Craft a Compelling Cover Letter: Write a cover letter that not only outlines your qualifications but also expresses your passion for the role and the company. Mention how your values align with Cavendish Nuclear's mission to create a safe and secure world.
Highlight Relevant Experience: In your application, emphasise your proven experience across the full project lifecycle. Include details about your contributions to previous projects, especially those involving safety assessments and compliance with engineering standards.
Showcase Communication Skills: Since excellent communication is key for this role, provide examples of how you've effectively engaged with stakeholders and customers in past roles. This could include resolving technical challenges or leading project discussions.
How to prepare for a job interview at Cavendish Nuclear
✨Showcase Your Technical Expertise
As a Senior Mechanical Engineer, it's crucial to demonstrate your deep technical knowledge. Be prepared to discuss specific projects you've worked on, the challenges you faced, and how you overcame them. Highlight your experience with complex mechanical systems integration and any innovative solutions you've implemented.
✨Emphasise Team Collaboration
Cavendish Nuclear values teamwork, so be ready to share examples of how you've successfully collaborated within multidisciplinary teams. Discuss how you fostered communication and alignment across different engineering disciplines to achieve project goals.
✨Prepare for Technical Questions
Expect to face technical questions that assess your problem-solving abilities and understanding of engineering principles. Brush up on relevant codes, standards, and procedures that apply to the role, and be ready to explain how you've applied these in your previous work.
✨Communicate Clearly with Stakeholders
Strong communication skills are essential for this role. Practice articulating complex technical concepts in a way that's easy for non-engineers to understand. Be prepared to discuss how you've engaged with stakeholders and customers to resolve issues and support project progress.
