Site Reliability Engineer NS West

Location

Gloucester, UK – hybrid and flexible working arrangements are available. Speak to your recruiter for details.

GG08 – GG10

£5,000

The National Security business in Gloucester is growing. You will work with a range of national‑security clients to deliver real‑impact solutions and support the community through tech engagement programs.

As a Site Reliability Engineer you will shift traditional operations into software‑centric solutions. Your focus will be on automation, so that manual operations are limited to no more than half of your time. You will collaborate with product teams, instill best design practices, and drive architectural resilience.

• Support and maintain essential services that support core mission applications, proactively enhancing availability, performance, and stability.
• Find innovative, automated solutions to problems rather than performing repetitive work. You will never spend more than 50% of your time on support tasks.
• Instrument applications lacking sufficient monitoring, using the data to demonstrate daily improvements.
• Understand the relationship between software and infrastructure to maximise scalability and resilience.
• Participate in the wider Dev Ops/SRE community within the organisation.

• Experience in Java and web technologies (JavaScript, HTML)
• Familiarity with database technologies such as Elastic and MongoDB
• Proficiency with Linux and Windows command lines (Bash, Power Shell)
• Hands‑on experience with cloud infrastructures such as AWS, Azure, or Open Stack
• Experience using deployment tools like Chef or Puppet
• Expertise in monitoring large systems using ELK stack
• Agile scrum experience and corresponding tooling (Jira)
• Diagnosing and troubleshooting application issues that result in service outages
• Strong troubleshooting skills across multiple stack layers
• Understanding of ITIL terminology
• Experience with containerisation and micro‑services (Docker)
• Experience extending and improving open‑source software
• Familiarity with automation test frameworks such as Selenium
• Awareness of emerging technology trends and ability to adopt new tools

BAE Systems Digital Intelligence values diversity, integrity, and merit. We welcome candidates from all backgrounds and encourage applicants from under‑represented communities, including women, ethnic minorities, people with disabilities, and LGBTQ+ individuals. If you have a disability or health condition that may affect certain assessment types, please discuss reasonable adjustments with your recruiter.

Many roles at BAE Systems are subject to security and export control restrictions. Applicants must achieve at least Baseline Personnel Security Standard and, for certain roles, meet National Security Vetting requirements, typically requiring 5–10 years of continuous UK residency.

We embrace hybrid working, allowing you to work from home, a BAE Systems office, or a client site. This flexibility helps balance work and personal life while enhancing well‑being. Diversity and inclusion are integral to our culture; we pride ourselves on creating an environment where varied perspectives and experiences drive excellence.