At a Glance
- Tasks: Lead innovative mechanical engineering projects for UK Defence infrastructure.
- Company: Cavendish Nuclear, a key player in energy security and national protection.
- Benefits: Generous holiday, pension scheme, health support, and professional development opportunities.
- Other info: Hybrid working with excellent career growth and a supportive environment.
- Why this job: Make a real impact on critical systems while enjoying a great work-life balance.
- Qualifications: Engineering degree and proven experience in multidisciplinary teams.
The predicted salary is between 50000 - 60000 € per year.
Location: Bristol or Warrington, Cheshire
Compensation: Competitive Salary + Benefits
Role Type: Full time / Permanent
Shape the Future of UK Defence Infrastructure
At Cavendish Nuclear we’re working to create a safe and secure world, together. As a Senior Mechanical Engineer, you can play your part at one of our key locations: Bristol or Warrington (Cheshire).
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 is a full‑time, permanent position (37 hours per week) and provides hybrid working arrangements with three days in the office, based at one of our key locations: Bristol or Warrington.
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.
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 – employees can buy additional leave or sell up to one working week of annual leave
- ‘Be Kind Day’ – one working day of paid leave a year to undertake volunteering work with chosen organisation or registered charity
- Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial wellbeing.
About Cavendish
We’re Cavendish Nuclear — a team of c5,000 specialists and a core part of Babcock International Group. Your work will contribute to projects that are critical to energy security and national protection. Together, we’re shaping a future that lasts — not only through the impact we make, but through meaningful careers that respect your work‑life balance.
We are a disability confident committed employer. If you have a disability or need reasonable adjustments during the application and selection stages, please email careers@babcockinternational.com with the subject header ‘Reasonable adjustments requirement’. We are happy to talk about flexible working – please ask about alternative patterns of work at interview.
Closing Date: 20/05/2026
Senior Mechanical Engineer in Bristol employer: Cavendish Nuclear
Cavendish Nuclear is an exceptional employer, offering a dynamic work environment where Senior Mechanical Engineers can thrive while contributing to vital Defence Nuclear infrastructure projects. With a strong emphasis on employee well-being, generous benefits, and opportunities for professional development, our culture fosters collaboration and innovation, ensuring that every team member plays a crucial role in shaping a secure future. Located in Bristol or Warrington, we provide a supportive atmosphere that values work-life balance and encourages meaningful contributions to national security.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Mechanical Engineer in Bristol
✨Tip Number 1
Network like a pro! Reach out to your connections in the engineering field, especially those who work at Cavendish Nuclear or similar companies. A friendly chat can lead to insider info about job openings and even referrals.
✨Tip Number 2
Prepare for interviews by brushing up on your technical knowledge and soft skills. Practice common interview questions related to mechanical engineering and think of examples that showcase your experience in multidisciplinary teams.
✨Tip Number 3
Showcase your passion for the defence sector! Research Cavendish Nuclear’s projects and be ready to discuss how your skills can contribute to their mission. This will demonstrate your genuine interest and commitment.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, you’ll find all the latest job openings and updates directly from us.
We think you need these skills to ace Senior Mechanical Engineer in Bristol
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Senior Mechanical Engineer role. Highlight your experience with complex mechanical systems and any relevant projects you've worked on. We want to see how your skills align with what we're looking for!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about the role and how you can contribute to our Defence Nuclear infrastructure initiatives. Keep it engaging and relevant to the job description.
Showcase Your Teamwork Skills:Since this role involves working within multidisciplinary teams, make sure to highlight your collaboration experiences. Share examples of how you've successfully worked with others to deliver complex engineering solutions.
Apply Through Our Website:We encourage you to apply through our website for a smoother application process. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from us!
How to prepare for a job interview at Cavendish Nuclear
✨Know Your Stuff
As a Senior Mechanical Engineer, you’ll need to demonstrate your deep technical expertise. Brush up on the latest engineering principles and be ready to discuss specific projects you've worked on. Prepare to explain how you’ve tackled complex mechanical systems integration in the past.
✨Showcase Teamwork
This role involves working within multidisciplinary teams, so be prepared to share examples of how you’ve collaborated with others. Highlight your experience in fostering collaboration and how you’ve contributed to achieving project milestones together.
✨Communicate Clearly
Excellent communication skills are essential for this position. Practice articulating your thoughts clearly and confidently, especially when discussing technical challenges or solutions. Be ready to engage with stakeholders and customers, showcasing your ability to resolve issues effectively.
✨Prepare for Compliance Questions
Since the role requires adherence to procedures, codes, and standards, expect questions about compliance. Familiarise yourself with relevant regulations and be ready to discuss how you ensure technical excellence and safety in your engineering activities.
