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BAE Systems • Guildford, United Kingdom

Security Infrastructure Engineer

Employment type:  Full time
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Job Description

Location(s): UK, Europe & Africa : UK : Guildford || UK, Europe & Africa : UK : Frimley

BAE Systems Digital Intelligence is home to 4,500 digital, cyber and intelligence experts. We work collaboratively across 10 countries to collect, connect and understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments.

Job Title: Security Infrastructure Engineer

Location: Guildford, Frimley – We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role

Who we are

Join BAE Systems and you’ll be part of something bigger. As a valued member of our global colleague network, you’ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You’ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow – shaping a safer future, for all of us.

From the depths of the ocean, to the far reaches of space – there’s no limit to where a career at BAE Systems could take you.

Role Description

BAE Systems have been contracted to undertake the design and build of a dedicated Security Operations Centre (SOC) to support the cyber defence of a major international defence programme. The information, systems and networks to be protected will be a mix of Microsoft Cloud services and on-premises data centres straddling multiple regions and classification levels.

We are looking for a talented and enthusiastic individual with excellent technical and client-facing skills, to act as an security infrastructure engineer who will support the design, configuration and maintenance of a wide range of security tools where you will be expected to work across a variety of technologies such Cloud compute, networking and storage services, and OnPrem infrastructure including Kubernetes, VMWare virtual machines, VLANs, SAN/NAS and other as appropriate.

The role will range from advising on design, deploying and configuring new solutions, assessing existing deployments and client capabilities to make improvements and improve overall maturity. This role is situated within our Defence Business unit and requires a minimum of SC clearance, ideally DV clearance. The position is expected to work from company offices in the UK with some time on client sites in UK and occasional travel to Europe and Asia.

  • Support the design and configuration of a range of security tools, such as: Splunk and Sentinel SIEM, Nessus Vulnerability management, Microsoft XDR and other as appropriate
  • Specify infrastructure requirements (RAM, Disk, CPU, Network bandwidth) for security tools.
  • Support the creation and establishment of both cloud hosting and containers, and OnPrem hosted VM’s and containers, apply security controls and compliance frameworks.
  • Support the design and configuration of network security devices, network routers and switches, establishment of VLANs, DNS and identity management capability
  • Support deployment of security tools to both cloud hosting and containers, and OnPrem hosted VM’s and containers
  • Support the integration of security tools with identity management solutions.
  • Develop test procedures to test solutions meet functional and non-functional requirements
  • Generalist Technical SME to support deployment and configuration of various tools including Jira and Cribl

Core Duties

  • Adaptable to new technologies supported demonstrable technical expertise
  • Experience in network design and configuration, Kubernetes and docker deployments, VMWare deployments in both cloud and OnPrem environments
  • Experience in basic administration of Windows
  • Experience in configuration of Linux including package managers and scripting
  • Understand TCP/IP component layers to identify normal and abnormal traffic
  • Self-motivated to understand tools that may not have been used before, researching and testing potential solutions
  • Client-side consulting, including stakeholder engagement and the ability to communicate insights and concepts to others.
  • Ability to build and maintain relationships with the various stakeholders
  • Ability to talk competently and maintain high standards of behaviour with the client
  • Ability to maintain confidentiality and deal with matters of national security.
  • Experience of Cribl and JIRA ITSM work would desirable.

The Team

We work hard and often go the extra mile, but we recognise people’s efforts and that everyone has a life outside of work. We encourage people to speak up if they want to rotate to a new project.

Why BAE Systems

This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture which values diversity, rewards integrity and merit, and where you’ll be empowered to fulfil your potential. We welcome candidates from all backgrounds and particularly from sections of the community who are currently under-represented within our industry including women, ethnic minorities, people with disabilities and LGBTQ+ individuals

We also want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions such as your nationality, any nationalities which you previously may have held and your place of birth can restrict the roles you are able to perform within the organisation.

All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Life at BAE Systems Digital Intelligence

We are embracing Hybrid Working. This means you and your colleagues may be working in different locations, such as from home, another BAE Systems office or client site, some or all of the time, and work might be going on at different times of the day.

By embracing technology, we can interact, collaborate and create together, even when we’re working remotely from one another. Hybrid Working allows for increased flexibility in when and where we work, helping us to balance our work and personal life more effectively, and enhance well-being.

Diversity and inclusion are integral to the success of BAE Systems Digital Intelligence. We are proud to have an organisational culture where employees with varying perspectives, skills, life experiences and backgrounds – the best and brightest minds – can work together to achieve excellence and realise individual and organisational potential.

Apply now

Company benefits

Adoption leave
Annual bonus
Buy or sell annual leave
Collaboration spaces
Cycle to work scheme
Electric Car Salary Sacrifice
Employee discounts
Enhanced maternity leave – 26 weeks paid, up to 52 weeks total, with the option of returning to work on reduced hours for the first 13 weeks
Enhanced paternity leave – 4 weeks for eligible employees
Enhanced pension match/contribution
Family health insurance
Fertility treatment leave
Gym membership – Discounts available
Health insurance
In house training
Learning license
Lunch and learns
Mental health support
Mental health first aiders
Mental health platform access
Modern office
Neo-natal leave
Open to compressed hours
Open to job sharing
Open to part time work for some roles
Open to part-time employees
Pregnancy loss leave
Private booths
Referral bonus
Relocation packages
Reservist leave – 15 days
Salary sacrifice
Secure on-site parking
Share options
Shared parental leave
Mentoring

Working at BAE Systems

Company employees:

Around 110,000

Hiring in countries

Australia

Canada

Poland

Qatar

United Kingdom

Office Locations

Awards & Accreditations

Most loved - Large companies

Top 5 - Most loved - Large companies

Flexa awards 2026

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