Senior Site Reliability Engineer

Salary: £75,000 - 75,000 per year

Requirements:

• Previous experience as a Site Reliability Engineer or in a similar cloud, infrastructure, DevOps, or platform engineering role within a customer-facing environment such as SaaS or MSP
• Strong hands-on experience with Azure and on-premise virtual machines
• Experience with Infrastructure as Code and Terraform
• Experience with container orchestration such as Kubernetes or AKS
• Experience with monitoring and observability tooling such as Prometheus, Grafana, Datadog, or Azure Monitor
• Ability to implement new processes and tools and drive adoption across development and support teams
• Strong communication skills across internal teams and external customers
• Skilled in networking across both cloud and on-premise environments
• Windows or Linux systems administration skills, with Linux preferred
• Previous use of AI tools to improve efficiency

Responsibilities:

• Use technologies such as Terraform and Kubernetes to provision and configure servers and networks, and to automate application lifecycles
• Use Datadog and other observability tools to monitor application performance
• Implement new ways of working and help shape how the organisation responds to and recovers from incidents
• Take ownership of incident resolution
• Help reduce key reliability metrics including MTTR, incident frequency, and on-call toil
• Work on an on-call rota and respond to incidents during assigned periods
• Identify opportunities for automation and help implement changes that improve reliability

Technologies:

• AI
• Azure
• Cloud
• Datadog
• DevOps
• Grafana
• Support
• Kubernetes
• Linux
• Prometheus
• Terraform
• Windows

More:

We are a well-established B2B SaaS company undergoing a significant platform transformation. We are hiring a Senior Site Reliability Engineer to help build stability, support live incidents, and improve system upkeep while playing a key role in adopting new tooling and processes. This is a genuine opportunity to own and operate how our cloud function works, with the potential to progress into a team lead position as our team grows. The role is based in Milton Keynes with two days on site each week, and offers a salary of up to £70,000 plus bonus and an on-call allowance.

last updated 30 week of 2026