Site Reliability Engineer

Job Description

We are seeking an experienced Site Reliability Engineer (SRE) to join our Group Technology Team in Milton Keynes.

ConnellsX is Connells Group Technology’s internal developer platform, built on Microsoft Azure. It simplifies cloud hosting, embeds security and compliance by default, and enables a frictionless developer experience. As part of the team building and operating this platform, you will play a hands-on role in ensuring it is reliable, scalable, and observable.

You will help establish and mature SRE practices, focusing on:

Monitoring and observability

Incident response

Post-incident review

Reliability testing and capacity planning

Toil reduction

Enabling development velocity

We offer a hybrid working arrangement with one day per week in our Milton Keynes office.

Key Responsibilities:

Support teams using ConnellsX and respond to incidents in a structured, blameless way

Investigate root causes and drive post-incident actions to completion

Define SLIs, contribute to SLOs, and monitor error budgets

Build dashboards, alerts, and runbooks to improve visibility

Automate repetitive tasks to reduce operational toil

Collaborate with cross-functional teams to enhance reliability and observability

Support performance testing and capacity planning

Proactively identify and prioritise reliability improvements

Experience & Skills Required:

Hands-on experience with Azure Monitoring (Application Insights, Alerts, Action Groups)

Strong knowledge of OpenTelemetry (including Kubernetes)

Scripting/automation using PowerShell and/or Azure CLI

Experience with Terraform and GitHub Actions

Ability to define SLIs/SLOs and manage error budgets

Incident response and post-incident review experience

Familiarity with Docker and Kubernetes

Strong communication and documentation skills

Desirable:

Working knowledge of .NET/C# and React/NextJS

Experience with cloud cost optimisation

Knowledge of Azure networking (DNS, VNets, Firewalls)

Understanding of security frameworks (e.g. ISO 27002, NIST CSF)

Azure certifications

About You:

You may come from SRE, DevOps, platform engineering, or operations backgrounds. What matters is hands-on experience running production systems, managing incidents, creating runbooks and automating repetitive work. The focus is on identifying root causes and systemic issues, reducing manual toil through automation, and maintaining reliability by applying SRE principles and using data‑driven metrics (SLIs/SLOs).

You understand reliability is about balance, not perfection, and can make data-driven trade-offs between stability and delivery. You are curious, collaborative, and take shared responsibility for system reliability.

Please note that we are unable to provide visa sponsorship. Applicants must have the right to work in the UK.

Connells Group UK is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of sex, race, disability, age, sexual orientation, transgender status, religion or belief, marital status, or pregnancy and maternity.

#connellsgroup

CF00864

Job Reference: CF00864