Technical Support & Sustainment Engineer

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world‑class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

Help keep mission‑critical systems performing where they matter most.

Raytheon UK is looking for a hands‑on Technical Support & Sustainment Engineer to join our team in Malvern, supporting complex IT systems used in defense, national security, and other critical environments.

This is a varied role for someone who enjoys getting under the bonnet of technology: building systems, testing upgrades, solving problems, supporting customers, and travelling to sites in the UK and overseas when needed.

You will work across the full lifecycle of secure, multi‑server and multi‑client systems, from build and configuration through to testing, deployment, sustainment, and upgrade. If you enjoy combining technical depth with real‑world impact, this role gives you plenty of room to grow.

What You Will Do

• Provide technical support and sustainment for deployed systems, helping ensure they continue to perform reliably and in line with company processes, procedures and quality standards, including support for AS9100 accreditation.
• Support programs during the build phase of complex systems, including hardware assembly, software installation and system configuration.
• Plan and carry out testing on newly built and upgraded systems, including Integration Testing, Factory Acceptance Testing and System Acceptance Testing.
• Provide office‑based technical support to customers by phone and email, with occasional out‑of‑hours support by prior arrangement.
• Travel within the UK and overseas to deliver, commission, upgrade, diagnose and resolve issues on systems originally built in Malvern.
• Work across a broad technology stack, including Microsoft products, Linux distributions, Active Directory, certificates, networking, storage solutions, and virtualisation.
• Maintain locally held replicas of customer systems, using them for troubleshooting, upgrade testing, and issue resolution.
• Demonstrate software and systems to internal and external customers, while contributing to continuous improvement and lean activities.

What You Will Learn

• Build deep, practical experience across a wide range of technologies, including Microsoft and Linux platforms, networking, storage, virtualisation, Active Directory, and certificate management.
• Learn how complex, secure, multi‑server systems are built, tested, deployed, and sustained throughout their lifecycle.
• Gain exposure to UK and international customer environments, seeing how systems are used operationally and how best to support them.
• Develop your skills in system testing, troubleshooting, and root cause analysis on live and replicated customer systems.
• Strengthen your communication and stakeholder management skills through regular engagement with internal teams and external customers.

What You Will Bring

• Experience in IT systems, system administration, technical support, or a similar technical environment.
• Familiarity with setting up, configuring, and maintaining systems involving multiple servers and clients.
• Basic understanding of Microsoft technologies, Linux systems and infrastructure concepts such as networking, storage, and virtualisation.
• Comfortable solving technical problems independently, including when travelling or supporting customers abroad.
• Strong written and verbal communication skills, with the ability to build effective relationships with colleagues, customers and technical teams.
• Willing and able to travel within the UK and overseas and occasionally provide out‑of‑hours support with prior notice.
• Ability to obtain and maintain the relevant UK security clearance required for the role, SC at a minimum.

It Would Be Great If You Also Have

• Experience with Red Hat Enterprise Linux.
• Experience working in defense, aerospace or another regulated, mission‑critical environment.
• Experience supporting customer‑facing systems and providing remote technical support.
• Familiarity with formal test stages such as Integration Testing, FAT and SAT.
• Experience participating in technical reviews, Engineering Review Boards or Design Reviews.
• A full UK driving licence.

Why Join Us?

This is a role with variety, visibility, and purpose. One week you could be working in the lab in Malvern, the next supporting a customer site, testing an upgrade, or helping resolve a complex technical issue. You will join a team that works at the sharp edge of system sustainment, where technical quality, reliability and customer trust are essential. At Raytheon UK, you will be part of a wider RTX organisation with access to expert colleagues, learning opportunities and the chance to contribute to technology that supports national security and mission success.

About Raytheon UK

Raytheon UK delivers innovative, high‑integrity solutions across defense, national security, and other critical domains. We combine advanced technology, robust engineering and long‑term support to help customers complete their most complex missions. As part of RTX, one of the world’s largest aerospace and defense companies, we bring together engineering expertise, global capability, and a shared commitment to helping create a safer, more secure world.

Role Type

This role is classified as Onsite. You will be based primarily at our Malvern office, working closely with the PDS (Post Design Support) team and lab‑based systems. Regular travel to customer sites in the UK and overseas will be required depending on program needs.

What we offer

• Attractive compensation package
• Private Medical Insurance
• Fantastic pension scheme
• Life Assurance and Group Income Protection Scheme participation
• 25 days annual leave plus public holidays, with the option to buy or sell up to 5 days each year
• Flexible working
• Employee discounts and flexible benefits platform
• Support with professional fees
• Employee Assistance Programme (EAP)
• And much more

Apply Now

If you are a practical, curious, and customer‑focused technical professional who enjoys solving problems, supporting complex systems and working in mission‑critical environments, we would love to hear from you.

Equal Employment Opportunity

RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.

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