RTX
Senior Infrastructure Engineer
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Senior Infrastructure Engineer
Role Type: Onsite, Permanent (Full-time, 5 days a week) Location: Gloucester, South Gloucestershire, United Kingdom Closing Date: 24 June 2026
N.B. eDV (Enhanced Disclosure and Vetting) clearance is a mandatory requirement for all candidates.
About Us
At Raytheon UK, we are a leader in defence and aerospace technology, driving innovation while fostering a culture of excellence. As part of the RTX enterprise, we deliver mission-critical solutions that safeguard national security through advanced systems, digital transformation, and cyber capabilities across:
- Cybersecurity (24/7 national operations)
- Land, sea, air, space, and cyberspace defence
- Digital and training solutions for military and commercial clients
Our SCRUM-based teams operate in an agile, mature environment, collaborating directly with customers to address global digital challenges.
Role Overview
Senior Infrastructure Engineer – Gloucester (Onsite, Permanent, Full-time)
You will play a key role in maintaining and delivering operational systems across multiple business areas, adhering to Agile/DevOps methodologies and working closely within our secure defence and cybersecurity ecosystem.
Key Responsibilities
-
Systems Administration & Maintenance:
- Perform system administration and backup tasks
- Troubleshoot and resolve application, network, and service-related issues
-
Infrastructure & Design:
- Research and resolve system design challenges
- Interpret requirements into design specifications and implementation
-
Hardware & Software Support:
- Manage Linux (RHEL/CentOS), Windows Server Active Directory, OU, user, and group management
- Support VMware vSphere (ESXi), server/hardware deployments, and desktop environments
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-
Agile Delivery:
- Operate within SCRUM/DevOps workflows, coordinating with product owners and stakeholder teams
- Deliver, install, maintain, and optimise scalable enterprise systems
-
Cloud & Modernisation:
- Support RedHat migrations, cloud services (AWS/Azure)
- Integrate Docker, Kubernetes, Helm charts, and container orchestration where relevant
-
Advanced Infrastructure:
- Work with Elasticsearch/Kibana, Apache Kafka, MongoDB
- Implement Infrastructure as Code (Terraform, Ansible) and automations
- Assess Concourse pipelines, and general automation distributions
Key Experience & Qualifications
Core Requirements
✅ Essential:
- Agile/SCRUM/DevOps experience, including Linux DC for systems engineering across full systems engineering life cycles (requirements → deployment → sign-off).
- Expertise in Linux (RHEL/CentOS) system administration (server design, security, monitoring).
- Understanding of design complexities in large-scale information systems management.
- Broad experience with hardwarestacks: Windows Server, Active Directory, VMware (vSphere), and niche hardware/OS configurations.
- Technical leadership—responsibility for project elements, working with project management.
✅ Desired but Not Compulsory:
- Concourse (pipes, admin, logic compiler).
- Infrastructure as Code (IaC) specialisations → Terraform, Ansible, Helm charts.
- Infrastructure support languages → Python, Bash.
- Complex systems engineering frameworks (MODAF, TOGAF).
- Cloud-native stack (AWS/Azure resource wrappers, VPNs).
Competencies & Mindset
- Problem-solving approach within a sharp edge/technology-focused team.
- Customer obsession—balancing functional requirement adherence with system health/downtime prevention.
- Thriving in defence and cyber workloads, with due regard for legacy evasion and compliance.
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Benefits & Perks
Compensation:
- Market-leading salary, escalation opportunities tied to performance.
Workplace Wellbeing & Growth:
- 10.5% company contribution to auto-enrolled pension scheme.
- 6× salary 'Life Assurance' protection with pension (inclusive of final-salary take-ups).
- 25 days paid leave (motorised), plus public holidays, with buy-sell ability for up to 5 days (37-hour format).
Support & Work Life Balance:
- Enhanced maternity/paternity/smithing parent leave policies (extended unpaid periods, dual-parent cost-sharing).
- lt সামিদাই المدينةStars (Extra for long service) holidays (additional every second/third/year after 3-15 years).
- 37-hour working week (Friday finish at 1.30pm).
- £800 annual employee DCM gift card and £50 Non-perishable/technology allowance/year.
Flex & Wellbeing Package:
- Flexible Benefits, including:
- Health CashPlan,
- Salary sacrifice on Cycle2Work, Dental, and VisionCare plans.
- Up to 5 paid volunteering days/year.
- Hybrid/remote opportunity (flexible based on team/site needs; subject to managerial assessment).
- Enhanced SSP (Statutory Sick Pay),
- On-site medical twice per year.
Our Commitment
As an RTX subsidiary, we adhere to strict non-discrimination policies: the company is dedicated to promoting inclusivity and equality, barred in UK legislation by disability protection laws. Applicants will receive equitable consideration regardless of age, background, LGBT+ status, pregnancy, or other legal identifiers.
Supporting Enduring Teams – Join us in tradition of cyber and defence safety. Apply today.
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