Site Reliability Engineer

MBDA S.A.S.; City of Westminster; On-site; GBP 85,000 - 100,000; Full time

Job summary

A prominent aerospace and defense company is looking for a Site Reliability Engineer (SRE) based in the UK. This position involves embedding SRE principles across high-impact platforms while modernizing legacy support systems. Candidates should have over 5 years of experience in SRE or a related field, with strong expertise in AWS and DevSecOps practices. Competitive salary of £100,000 per annum plus a bonus and excellent benefits are offered.

Benefits

Bonus

Excellent Benefits

Qualifications

• 5+ years in an SRE or closely related reliability/DevSecOps discipline.
• Strong knowledge of SRE practices: monitoring, observability, incident response, automation.
• Hands-on with AWS and infrastructure-as-code (Terraform, Ansible or CloudFormation).
• Experience with CI/CD pipelines and container platforms (Docker / Kubernetes).
• Comfortable working with vendors, suppliers and internal product/engineering teams.
• Ability to communicate clearly and influence engineering culture.

Responsibilities

• Embed SRE principles to improve availability, reliability, performance and incident response.
• Modernise legacy support by introducing automation, observability, shift-left practices and CI/CD.
• Work across multiple domains including web/mobile, payments, CRM, and cloud infrastructure.
• Partner with vendors and internal engineering teams; influence technical and financial decisions.

Skills

AWS

Infrastructure as code (Terraform, Ansible, CloudFormation)

DevSecOps practices

CI/CD pipelines

Monitoring and observability

Container platforms (Docker, Kubernetes)

Job description

Site Reliability Engineer (SRE) – AWS

Location: London

Salary: £100,000 per annum + Bonus + Excellent Benefits

We are looking for an SRE for a large-scale digital organisation in the middle of a major engineering modernisation journey. This is not a BAU support role; this is a chance to help define what “good” looks like as SRE is brought fully in-house for the first time.

You'll work across high-impact platforms (web/mobile, payments, CRM, operations, cloud) and play a key role in shifting the organisation away from ticket-driven support and towards proactive, automated, AWS-first, engineering-led reliability.

Responsibilities

• Embed SRE principles to improve availability, reliability, performance and incident response.
• Modernise legacy support by introducing automation, observability, shift-left practices and CI/CD.
• Work across multiple domains (web/mobile, payments, CRM, cloud infrastructure, airline systems).
• Partner with vendors and internal engineering teams; influence technical and financial decisions.

Qualifications

• 5+ years in an SRE or closely related reliability/DevSecOps discipline.
• Strong knowledge of SRE practices: monitoring, observability, incident response, automation.
• Hands‑on with AWS and infrastructure‑as‑code (Terraform, Ansible or CloudFormation).
• Experience with CI/CD pipelines and container platforms (Docker / Kubernetes).
• Comfortable working with vendors, suppliers and internal product/engineering teams.
• Ability to communicate clearly and influence engineering culture.

Lead Cloud Site Reliability Engineer – Azure/Kubernetes

Location: Hybrid working in Bristol (eligible for SC/DV clearance)

Salary: £70,000 - £95,000

We are looking for a Lead Cloud Site Reliability Engineer (SRE) with strong expertise in Azure, Kubernetes, Terraform, and GitHub to lead large-scale projects and mentor a growing team.

Key Responsibilities

• Lead SRE activities for large-scale cloud projects.
• Define and drive SLOs/SLIs, service health metrics and standards.
• Troubleshoot, monitor and improve systems using tooling such as Datadog, Splunk, etc.
• Contribute to IaC, containerisation and cloud-native adoption (AWS, Terraform, Docker/K8s).
• Mentor and support engineers as SRE ways of working are introduced across the organisation.

Experience / What you bring

• 5+ years in an SRE or closely related reliability/DevSecOps discipline.
• Strong knowledge of SRE practices: monitoring, observability, incident response, automation.
• Hands‑on with AWS and infrastructure‑as‑code (Terraform, Ansible or CloudFormation).
• Experience with CI/CD pipelines and container platforms (Docker / Kubernetes).
• Comfortable working with vendors, suppliers and internal product/engineering teams.
• Excellent communication and influence skills.

How to apply

Interested in learning more? Please get in touch with Benjamin Applewhaite to discuss the role in confidence.