At a Glance
- Tasks: Protect people and information in a vital national defence programme.
- Company: Join Cavendish Nuclear, a leader in clean energy and national security.
- Benefits: Generous holiday, pension scheme, health support, and professional development.
- Other info: Be part of a diverse team with excellent career growth opportunities.
- Why this job: Make a real impact while enjoying a flexible and supportive work environment.
- Qualifications: Experience in admin roles and strong Excel skills are essential.
The predicted salary is between 30000 - 40000 € per year.
Location: Warrington, Cheshire + Hybrid Working Arrangement
Compensation: Attractive Salary + Benefits
Role Type: Full time / Permanent
Role ID: SF 72971
Safeguarding People, Programmes and National Security - Your Career Starts Here
At Cavendish Nuclear, we're working to create a safe and secure world, together. If you join us, you can play your part as a Junior Security Administrator at our Warrington, Cheshire site.
The role:
As a Junior Security Administrator, you play a vital role in protecting people, information and critical infrastructure within a major national defence programme. Supporting the Head of Security and wider security team, you help ensure security processes operate smoothly, compliantly and effectively across a highly regulated environment. The role is 37 hours per week, Monday to Friday, and is based at our Warrington site. Hybrid working patterns are available, and some travel to other Cavendish Nuclear, Babcock and customer sites will be expected.
Day-to-day, you'll be required to:
- Providing personnel security advice in line with current HMG and company security policy
- Managing security clearance processes, including upgrades, transfers and access requests
- Maintaining accurate security records, spreadsheets and compliance data using Microsoft Excel
- Coordinating starters, leavers, site access and visitor processes across secure facilities
- Supporting audits, training compliance and general administration for the Security team
Essential experience:
- Experience in an administrative, coordination or support role within a structured environment
- Strong working knowledge of Microsoft Excel and Microsoft Office applications
- Excellent written and verbal communication skills
- High attention to detail with the ability to manage data accurately
- Ability to work independently while contributing positively to a team environment
Qualifications:
- Membership with the Defence and Security Industry Association (DISA) or the Security Institute is highly desirable
- We value difference and don't have a fixed idea when it comes to background or education, provided you can show the required level of experience and willingness to learn then we would like to hear from you
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:
We're Cavendish Nuclear - a team of c5,000 specialists and a core part of Babcock International Group. Here, you'll be part of something bigger. Across clean energy, defence, and civil decommissioning, 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. Join us and discover how far we can go, 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.
Closing date: 19/05/2026
Junior Security Administrator employer: Babcock International
Cavendish Nuclear is an exceptional employer, offering a supportive work culture that prioritises employee wellbeing and professional growth. With generous benefits such as a matched pension scheme, flexible working arrangements, and opportunities for volunteering, employees can thrive both personally and professionally in a meaningful role that contributes to national security. Located in Warrington, Cheshire, the company fosters a collaborative environment where every team member plays a vital part in shaping a secure future.
StudySmarter Expert Advice🤫
We think this is how you could land Junior Security Administrator
✨Tip Number 1
Network like a pro! Reach out to current or former employees at Cavendish Nuclear on LinkedIn. A friendly chat can give us insider info about the company culture and maybe even a referral!
✨Tip Number 2
Prepare for the interview by brushing up on your knowledge of security processes and compliance. We want to see that you’re not just a fit for the role, but also passionate about safeguarding people and information.
✨Tip Number 3
Show off your Excel skills! Be ready to discuss how you've used spreadsheets in past roles. We love candidates who can manage data accurately and efficiently, so bring examples to the table.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, we’re always looking for enthusiastic individuals who are eager to learn and grow with us.
We think you need these skills to ace Junior Security Administrator
Some tips for your application 🫡
Tailor Your Application:Make sure to customise your CV and cover letter for the Junior Security Administrator role. Highlight your relevant experience, especially in administrative or coordination roles, and show how your skills align with what we're looking for.
Show Off Your Excel Skills:Since strong knowledge of Microsoft Excel is essential, don’t forget to mention any specific projects or tasks where you've used Excel effectively. We want to see how you can manage data accurately and efficiently!
Communicate Clearly:Your written communication skills are key for this role, so ensure your application is clear and concise. Use proper grammar and structure to demonstrate your attention to detail – it’s a big part of what we do at Cavendish Nuclear.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way to ensure your application gets to us quickly and securely. Plus, you’ll find all the details you need about the role and our company there!
How to prepare for a job interview at Babcock International
✨Know Your Security Policies
Familiarise yourself with current HMG and company security policies. Understanding these will not only help you answer questions confidently but also show your commitment to the role and its responsibilities.
✨Excel is Your Best Friend
Since strong knowledge of Microsoft Excel is essential, brush up on your skills before the interview. Be prepared to discuss how you've used Excel in past roles, especially for managing data and compliance records.
✨Communicate Clearly
Excellent written and verbal communication skills are a must. Practice articulating your thoughts clearly and concisely, as this will be crucial when discussing security processes or during team collaborations.
✨Show Your Attention to Detail
Highlight your ability to manage data accurately and your high attention to detail. Prepare examples from previous experiences where your meticulousness made a difference, especially in administrative or coordination roles.
