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Salary
≈ $71k – $142k per year (Estimated)
Location
Hybrid (Guildford, United Kingdom)
Seniority
Senior · 5+ years exp
Visa
Licensed UK visa sponsor

Confirmed on the employer's own hiring board on Oct 9, 2026. First seen by Alion on Jun 10, 2026.

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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

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.

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 travel internationally.

  • Support the design and configuration of a range of security tools
  • 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
  • Technical SME to support deployment and configuration of various tools

Core Duties

  • Adaptable to new technologies supported demonstrable technical expertise
  • Experience in network design and configuration, containerised platform deployments, virtual machine deployments in both cloud and OnPrem environments
  • Experience in basic administration of OS systems
  • 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

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.

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