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Senior Systems Administrator

Northrop Grumman

Posted today
Secret
Unspecified
Unspecified
IT - Hardware
New Malden, United Kingdom (On-Site/Office)

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes

RELOCATION ASSISTANCE: No relocation assistance available

CLEARANCE TYPE: UK-Security Check (SC)

TRAVEL: Yes, 25% of the Time

Opportunity:

This is more than just a job; it's a mission.

We are looking for a skilled Senior Systems Administrator to provide technical guidance, design and administration for key business infrastructure. The ideal candidate will have strong problem-solving abilities, experience supporting enterprise and key business applications, and an understanding of project management methodologies. Candidate will be responsible for delivering advanced technical solutions, contribute to the development of new principles and concepts, and act as advisor to management and customer on advanced technical research studies and applications.

Responsibilities:
  • Apply subject matter expertise to provide recommendations regarding systems administration to management and guide other team members as needed
  • Contribute to the planning and development of the overall service
  • Install, configure, administer, troubleshoot, and resolve system issues as required
  • Participate as directed by the System Administration Manager in rosters and other arrangements necessary for the delivery of 24/7 services, undertaking responsibilities as part of the Systems Administration Team On-call rota, working flexibly to deliver out-of-hours planned and unplanned network changes
  • Serve as Systems Administration lead on advanced projects and/or programmes
  • Contribute to the development of new principles & concepts
  • Follow, maintain and disseminate approved procedures, including adherence to ISO20000 & ISO27001 standards
  • Collaborate with vendors for application support, upgrades, and issue resolution.
  • Troubleshoot and resolve complex issues related to deployment, infrastructure, and system performance.


Benefits:

We can offer you flexible hybrid working options to suit you, including optional compressed working schedule with every other Friday off. Our benefits including private health care, career development opportunities and performance bonuses. For a comprehensive list of benefits, speak to our recruitment team.

We are looking for:

Strong technical foundation in several of the following technologies:
  • VMware vSphere 8.0+
  • Fiber Channel Storage Technologies - Dell NetApp
  • Citrix XenApp/XenDesktop and Citrix Netscalar
  • Amazon Web Services/Azure
  • Microsoft OS 2019/2022, Exchange and Office 365
  • SQL Server administration/database concepts - MS SQL 2019
  • Certificate Authorities Administrative experience
  • Experience with Linux and Ansible
  • Experience with Active Directory Federated trusts
  • Familiarity with project management methodologies including ITIL, AGILE and SCRUM
  • Sound networking knowledge - TCP/IP, DHCP, DNS, MPLS


Security clearance:

Due to the nature of our projects, you must be Sole UK National for this clearance type.

You must be able to gain and maintain the relevant UK Government security clearance in line with the job role (SC).

Other requirements:

You will be required to travel within the UK to other Northrop Grumman offices and less frequently to our offices within EMEA or the US as required.

Northrop Grumman is committed to hiring and retaining a diverse workforce, and encourages individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.
group id: 10122071

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About Us
Northrop Grumman solves the toughest problems in space, aeronautics, defense and cyberspace to meet the ever-evolving needs of our customers worldwide. Our 90,000 employees are Defining Possible every day using science, technology and engineering to create and deliver advanced systems, products and services. Northrop Grumman careers and internships are as varied as your interests, with a lifetime of potential that will allow you to work together with people from many backgrounds, personal passions and disciplines. © 2025 Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.
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Northrop Grumman Jobs


Job Category
IT - Hardware
Clearance Level
Secret