Infrastructure System Administrator

Northrop Grumman; Greater London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A global technology innovator in Greater London is seeking an experienced Infrastructure Systems Administrator to join their team. You will design and maintain secure infrastructure for naval platform management systems, ensuring compliance with cybersecurity standards. With a focus on IT/OT integration, your responsibilities will include managing Windows Server and Red Hat Linux environments. The ideal candidate will have experience in virtualization technologies and knowledge of cybersecurity practices, contributing directly to national defence efforts.

Benefits

Flexible working options

Private healthcare

Career development programmes

Performance-based bonuses

Qualifications

• Proven experience in IT infrastructure ideally with IT / OT integration.
• Strong skills in Windows Server domains and Red Hat Linux.
• Hands-on experience with virtualisation technologies (VMware, Hyper-V).

Responsibilities

• Designing IC infrastructure for naval platforms ensuring high availability.
• Integrating IT / OT systems to support mission-critical operations.
• Managing Windows Server and Red Hat Linux environments.

Skills

Active Directory

VMware

Computer Networking

Microsoft Windows Server

Linux

System Administration

Tools

Red Hat Linux

Hyper-V

Job description

UK CITIZENSHIP REQUIRED FOR THIS POSITION : Yes

RELOCATION ASSISTANCE : No relocation assistance available

Clearance type : UK-Security Check (SC)

Travel : Yes 10% of the Time

Whats your possible

At Northrop Grumman UK youre part of a team defining whats possiblesolving tomorrows challenges and shaping the technology solutions of the future. This mindset drives not only our customer solutions but also your career development and the impact we make in our communities.

This is more than just a jobits a mission.

Were looking for an experienced Infrastructure Systems Administrator to join our pioneering team working at the intersection of Information Technology (IT) and Operational Technology (OT). Youll help design develop and maintain secure infrastructure for naval platform management systemssupporting both surface ships and submarines.

This role is part of our mission systems team where innovation meets purpose. Youll be instrumental in ensuring the reliability security and compliance of our development environment and final productcontributing directly to national defence and global security.

What you'll be doing :

• Designing IC infrastructure for naval platforms ensuring high availability and defence‑grade security.
• Integrating IT / OT systems to support mission‑critical operations.
• Managing Windows Server and Red Hat Linux environments optimising for performance and compliance.
• Implementing virtualisation solutions (VMware Hyper‑V) to support scalable development.
• Maintaining IT assets and automating monitoring / reporting across the development environment.
• Enforcing cybersecurity standards conducting vulnerability scans and ensuring regulatory compliance (ISO 27001 IEC 62443).

What we’re looking for :

• Proven experience in IT infrastructure ideally with IT / OT integration.
• Strong skills in Windows Server domains and Red Hat Linux.
• Hands‑on experience with virtualisation technologies (VMware Hyper‑V).
• Knowledge of cybersecurity practices and vulnerability management.
• Familiarity with defence regulations and secure system design.
• Experience in IT asset management and automated monitoring tools.

If you dont meet every requirement we still encourage you to apply. We value diverse experiences and perspectives.

Security Clearance

Due to the nature of our work you must be a Sole UK National and able to gain and maintain SC-level UK Government security clearance.

Our recruitment team is here to support you through the process :

What we offer :

• Flexible working options including compressed fortnight
• Private healthcare and cash health plan
• Holiday buy / sell scheme
• Career development programmes and mentorship
• Performance‑based bonuses

Why join us

A Mission to Believe In Every day we contribute to building a more secure and connected world.

A Place to Belong and Thrive Every voice matters. We foster an inclusive culture where you can be yourself.

Your Career Your Way Shape your journey with diverse roles training and development opportunities.

Ready to apply

• Yes Submit your application online.
• Possibly Reach out to our team for more information :
• No Explore other opportunities with us. Were growing across the UK.

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.

Key Skills

• Active Directory
• VMware
• Computer Networking
• Microsoft Windows Server
• Solaris
• Windows
• Linux
• SAN
• Shell Scripting
• System Administration
• DNS
• CentOS

Employment Type : Full-Time

Experience : years

Vacancy : 1