Amentum will inspire and empower you to deliver your best work so you can evolve, grow and succeed - today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities.
People are our greatest asset, and we offer a competitive package to retain and attract the best talent.
In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. We also give back to our communities through our Collectively program which incorporates matched-funding, paid volunteering time and charitable donations.
About the Opportunity
We employ the UK's most experienced and skilled technical services professionals and has grown to over 8,000 people in locations across the UK - we provide the resources to turn great ideas into reality, and we offer capable and committed individuals the opportunity to shape their careers how they wish.
The Administrator/Facilities Support role holder will report to Operations Delivery Director.
To support the Energy Business in the efficient, compliant and high-quality delivery of Administration and Facilities services to individual projects as well as the business as a whole. The role ensures the effective provision of ad-ministrative and facilities support to professional staff, enabling the smooth operation of project execution activi-ties and business systems, to maximise the value and quality of deliverables.
The postholder acts as a key point of contact within the office for administration, facilities and business support activities, ensuring responsiveness, professionalism and continuous improvement.
Job Duties and Responsibilities
General Administration
1. Manage and respond to enquiries received via the Energy Admin mailbox in a timely and professional manner.
2. Deliver project administrative and facilities support to projects and the greater business, ensuring accuracy and quality in delivery of required activities.
3. Provide support for both planned and urgent business requests.
Travel & Expenses
4. Coordinate domestic and international travel arrangements (flights, accommodation, car hire) for project and office based personnel.
5. Provide guidance on travel planning and approval processes.
6. Support expense submissions, Concur queries and provide best practice guidance.
7. Assist with timesheet processes, particularly for seconded/site-based staff.
Meetings & Events
8. Arrange meetings, including room bookings, equipment setup and catering.
9. Organise training sessions and training-related administration.
Systems & Processes
10. Provide guidance on the ServiceNow (SNOW) system for HR, IT and business support tickets.
11. Maintain efficient electronic record and filing systems for the Lead Team.
12. Support project-specific document management systems as required.
13. Provide feedback to the Energy Operational Delivery Director on system effectiveness and compliance challenges.
Workforce & Project Support
14. Support workforce planning reporting and associated data updates.
15. Provide project delivery administration support.
16. Assist with contractor enquiries.
Procurement & Supplies
17. Order Personal Protective Equipment (PPE) on behalf of Energy team members.
18. Maintain consumable stock levels for the business.
19. Support ad hoc office and project purchases outside the Facilities remit
Facilities & HSSE Support
20. Act as a point of contact for facilities-related queries within the office
21. Create and manage security passes, including replacements.
22. Liaise with landlords, building managers and service providers to resolve facilities issues.
23. Escort and supervise external contractors to ensure compliance and safe execution of works.
24. Liaise with cleaning providers to resolve service issues.
25. Maintain and update facilities compliance systems (, Trackrecord), ensuring audit readiness.
26. Coordinate statutory inspections and testing (, PAT testing, fire extinguisher servicing).
27. Organise ad hoc repairs and maintenance requirements.
28. Authorise routine facilities invoices (large invoices authorised by Facilities Manager).
29. Attend landlord meetings as required.
30. Order and manage office supplies and refreshments, including client and project-based requests.
Front of House
31. Coordinate visitor bookings with building reception.
32. Ensure all visitors are appropriately escorted where required.
33. Ensure meeting rooms are fully prepared (equipment, refreshments, layout).
34. Ensure visitors receive safety briefings and understand emergency procedures.
New Starter Support
35. Coordinate local onboarding activities
36. Deliver office inductions and tours.
37. Facilitate introductions to key personnel.
38. Confirm completion of required inductions.
39. Assess and coordinate Personal Emergency Evacuation Plans (PEEPs) where required.
Qualifications & Experience
40. Previous administration experience preferred but not essential.
41. Self-starter with ability to think for themselves.
42. Motivated team member with the ability to work to deadlines and communicate progress as applicable.
43. Good communication skills and ability to articulate information to a broad range of stakeholders.
44. Proven experience of delivery within a highly regulated environment
Our Culture
Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.
We aim to embed inclusion and diversity in everything we do. We know that if we are inclusive, we’re more connected, and if we are diverse, we’re more creative. We accept people for who they are, regardless of age, disability, gender identity, gender expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. This is reflected in our wide range of Global Employee Networks centered on inclusion and diversity.
We partner with VERCIDA to help us attract and retain diverse talent. For greater online accessibility, please visit to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.
If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team.
Compensation Details:
£35,000
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
Benefits Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
45. Health, dental, and vision insurance
46. Paid time off and holidays
47. Retirement benefits (including 401(k) matching)
48. Educational reimbursement
49. Parental leave
50. Employee stock purchase plan
51. Tax-saving options
52. Disability and life insurance
53. Pet insurance
Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
Original Posting:
03/10/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.
Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at .