Technical Support & Sustainment Engineer

Salary: £50,000 - 90,000 per year

Requirements

• We are looking for someone with experience in IT systems, system administration, technical support, or a similar technical environment.
• You will have familiarity with setting up, configuring, and maintaining systems involving multiple servers and clients.
• You will bring a basic understanding of Microsoft technologies, Linux systems, and infrastructure concepts such as networking, storage, and virtualisation.
• You will be comfortable solving technical problems independently, including when travelling or supporting customers abroad.
• You will have strong written and verbal communication skills, with the ability to build effective relationships with colleagues, customers, and technical teams.
• You must be willing and able to travel within the UK and overseas and occasionally provide out-of-hours support with prior notice.
• You must be able to obtain and maintain the relevant UK security clearance required for the role, SC at a minimum.
• 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 license.

Responsibilities

• We 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.
• We support programs during the build phase of complex systems, including hardware assembly, software installation, and system configuration.
• We plan and carry out testing on newly built and upgraded systems, including Integration Testing, Factory Acceptance Testing and System Acceptance Testing.
• We provide office-based technical support to customers by phone and email, with occasional out-of-hours support by prior arrangement.
• We travel within the UK and overseas to deliver, commission, upgrade, diagnose and resolve issues on systems originally built in Malvern.
• We work across a broad technology stack, including Microsoft products, Linux distributions, Active Directory, certificates, networking, storage solutions, and virtualisation.
• We maintain locally held replicas of customer systems, using them for troubleshooting, upgrade testing, and issue resolution.
• We demonstrate software and systems to internal and external customers, while contributing to continuous improvement and lean activities.

Technologies

• Active Directory
• Hardware
• Support
• Linux
• Security
• HTTP

More

We are Raytheon UK, an RTX business based in Malvern, Worcestershire, and we deliver innovative, high-integrity solutions across defense, national security, and other critical domains. This is an onsite role with regular travel across the UK and overseas, working closely with our PDS team and lab-based systems. We offer an attractive compensation package, private medical insurance, a fantastic pension scheme, life assurance and group income protection, 25 days of 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, support with professional fees, and an Employee Assistance Programme. As part of RTX, we combine engineering expertise, global capability, and a shared commitment to helping create a safer, more secure world.

last updated 26 week of 2026