Principal Platform Engineer

RTX; Gloucester; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Competitive salary

Pension scheme

Life assurance

25 days annual leave

Job summary

RTX in Gloucester is seeking a Principal Platform Engineer to deploy and manage applications across cloud and on-prem environments. You will partner with multiple business areas to design scalable, secure infrastructure, automate release processes, and uphold mature DevOps practices in a hybrid, on-site role.

The role requires experience with cloud platforms (AWS/Azure), IaC tools, CI/CD pipelines, container orchestration and security-minded engineering.

Qualifications

• Experience delivering in an Agile/SCRUM/DevOps model.
• Exposure to cloud platforms (AWS or Azure) and IaC tools.
• Experience building/maintaining large-scale apps and CI/CD pipelines.

Responsibilities

• Deploy and configure applications in cloud or on-prem environments.
• Collaborate with stakeholders to understand project needs.
• Automate and improve development and release processes.
• Ensure systems are secure against cyber threats.
• Identify and implement software updates and fixes.
• Coordinate with engineers to enforce processes.

Skills

Agile SCRUM DevOps

Cloud technologies

Scripting & source control

Tools

Terraform

Puppet

Chef

Ansible

Jenkins

Concourse CI

Kubernetes

Docker

Job description

Date Posted:

2026-06-26

Country:

United Kingdom

Location:

Gloucester, South Gloucestershire

Position Role Type:

Onsite

Principal Platform Engineer

Gloucester

Permanent, full time

Hybrid (min 3 days a week on site)

Due to the interestingworkwe do and the sector this team is working in, we require all candidates to be willing and eligible to hold SC and eDV clearance.

About us

At Raytheon UK, we take immense pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence.

Cyber

Our National Security Cyber business delivers mission-critical solutions that safeguard our national security 24 hours a day, seven days a week. Working in a mature, agile environment, our SCRUM teams work synchronously with our customers to solve some of the toughest digital challenges faced in the world today.

Role&Responsibilities

Work as a Principal Platform Engineer, deploying applications and software to cloud or on-prem environments for our many business areas.

Due to the interesting work we do and the sector this team is working in, we require all candidates tobe willing to attain an eDV clearance.

• Building and setting up development tools and infrastructure
• Understand the needs of project stakeholders
• Automate and improve development and release processes
• Ensure that systems are safe and secure against cyber security threats
• Identify technical problems and develop software updates and solutions
• Work with other engineers to ensure that development follows established processes and works as intended

Required experience

• Experience of working in an Agile/SCRUM/DevOps delivery model
• Cloud technologies (AWS or Azure)
• Infrastructure as code e.g. Terraform, Puppet, Chef, Ansible etc.
• Experience in building and deploying large-scale applications in
• Continuous Integration/Delivery pipelines;
• Container platform and orchestration systems ECS, AKS, Kubernetes/helm/Docker
• Experience in automation and integration tools such as Jenkins,
• Concourse CI or cloud equivalents
• Experience in scripting languages and source control

Benefits:

• £: Competitive salary
• Contributory Pension Scheme (up to 10.5% company contribution)
• 6 times salary 'Life Assurance' with pension
• 25 days holiday (increasing with service) + statutory public holidays, plus opportunity to buy and sell up to 5 days (37hr)
• Company bonus scheme (discretionary)
• Flexible Benefits scheme with extensive salary sacrifice schemes, including HealthCashplan, Dental, and Cycle to Work amongst others
• Enhanced sick pay
• Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave

Work Culture

• 37hr working week, although hours may vary depending on role, jobrequirementor site-specific arrangements.
• Early 1.30pm finish Friday, start your weekend early!
• Remote,hybridand site based working opportunities, dependant on your needs and the requirements of the role.
• Up to 5 paid days volunteering each year.
• Flexible working culture focused on output, with more formal flexible working arrangements on request (assessed subject to role) - please highlight any requests to the Talent Acquisition team.

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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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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