Site Reliability Engineer

Salary: £70,000 - 70,000 per year

Requirements

• We typically look for experience in software development in Java and web technologies such as JavaScript and HTML.
• We typically look for familiarity with database technologies such as Elastic and Mongo.
• We typically look for confidence using Linux and Windows command lines such as Bash and PowerShell.
• We typically look for hands-on experience with cloud infrastructure such as AWS, Azure or OpenStack.
• We typically look for experience with deployment tools such as Chef and Puppet.
• We typically look for expertise in monitoring large systems using technologies such as ELK.
• We typically look for experience working in an Agile Scrum team and with supporting tools such as Jira.
• We typically look for experience diagnosing and troubleshooting application issues that result in service outages.
• We typically look for troubleshooting skills across different levels of the stack.
• We typically look for understanding of ITIL terminology.
• We typically look for experience with container management and microservices architectures such as Docker.
• We typically look for experience extending and improving open source software.
• We typically look for familiarity with automation test frameworks such as Selenium.
• We typically look for awareness of technology trends and the ability to adopt new cutting-edge tools.

Responsibilities

• We support and maintain essential services that support core mission applications, proactively improving availability, performance and stability.
• We use software and systems engineering expertise to automate work and reduce manual operations.
• We focus on innovative solutions rather than repetitive work.
• We instrument applications where monitoring is insufficient and use the results to demonstrate daily improvements.
• We work alongside product teams, advising on good practice for system design and build.
• We understand the relationship between software and infrastructure and how to get the best from the infrastructure our systems run on.
• We participate in the wider DevOps and SRE community within our organisation.

Technologies

• AWS
• Azure
• Bash
• Cloud
• DevOps
• Docker
• ELK
• Support
• ITIL
• JIRA
• Java
• JavaScript
• Linux
• OpenStack
• PowerShell
• Puppet
• Security
• Selenium
• Web
• Windows
• microservices
• LESS

More

We are BAE Systems Digital Intelligence, home to 4,500 digital, cyber and intelligence experts working collaboratively across 10 countries to collect, connect and understand complex data so governments, nation states, armed forces and commercial businesses can unlock digital advantage in demanding environments. This Site Reliability Engineer role is based in Gloucester, with hybrid and flexible working arrangements available. We are growing our National Security business and offer opportunities to make a real impact, contribute to local community engagement and outreach, and develop tech and cyber skills in the region. We offer an inclusive culture that values diversity, integrity and merit, and we welcome candidates from all backgrounds. Many of our roles are subject to security and export control restrictions, and applicants must meet baseline personnel security standards, with some roles requiring higher levels of vetting and UK residency requirements.

last updated 33 week of 2026