Site Reliability Engineer

And Digital; Reading; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

25 days holiday + flexible Bank / BH

Pension: 6% + 2% employee

Aviva healthcare cover

Flexibenefit £1000 credit

Life Assurance

Income Protection

Eye test + glasses

Enhanced parental leave

Job summary

AND Digital Limited is seeking an experienced Site Reliability Engineer to join our platform engineering team in Reading. You will bridge development and operations, owning availability, latency and performance of core cloud services while driving automation and IaC practices.

You will design scalable Azure environments, manage AKS clusters, implement Terraform modules, and lead incident response with a focus on reducing toil and improving reliability across global deployments.

Qualifications

• Microsoft Azure: strong hands-on experience designing, provisioning, securing and maintaining scalable cloud environments across Azure services (e.g., AKS, Virtual Networks, Key Vault, Azure DevOps).
• Terraform: modular, clean IaC to manage cloud estates.
• Kubernetes (K8s): production administration including ingress, Helm, stateful sets and security.
• CI/CD & Scripting: Bash, Python/Go and CI tools like Azure DevOps, GitHub Actions, GitLab.
• Networking & Security Fundamentals: cloud networking, identity management and least-privilege access.

Responsibilities

• Design, build and maintain highly available infrastructure and platforms in Microsoft Azure.
• Standardize, provision and maintain Terraform deployments globally.
• Manage and secure production-grade Kubernetes clusters (e.g., AKS) with zero-downtime pipelines.
• Automate manual tasks, implement self-healing systems and CI/CD automation.
• Lead incident response, participate in on-call rotations and drive blameless postmortems.
• Define and monitor SLIs/SLOs and budget error budgets with development teams.

Skills

Microsoft Azure

Terraform

Kubernetes (K8s)

CI/CD & Scripting

Networking & Security Fundamentals

Tools

AKS

Azure DevOps

GitHub Actions

GitLab

Job description

Site Reliability Engineer

Who We Are:

We’re on a mission to close the world’s tech skills gap.

We help organisations navigate the future of technology, combining human expertise, emerging tech and AI to deliver better outcomes, faster.

Since 2014, we’ve worked side‑by‑side with clients to solve complex challenges, build high‑performing teams, and create lasting capability. As technology continues to evolve, we believe the most successful organisations will be those that combine the best of both: human ingenuity AND intelligent technology.

That belief is embedded in everything we do. We call it the genius of the AND: deep expertise AND practical delivery, innovation AND responsibility, ambitious work AND sustainable careers.

Through our Guide, Build and Equip approach, we help organisations embrace change, deliver meaningful impact, and develop the skills they need to thrive in an increasingly agentic world.

About you:

• You care deeply about producing high‑quality work that delivers real value
• You’re comfortable navigating ambiguity and solving complex problems collaboratively
• You bring strong expertise in your craft, alongside a willingness to keep learning
• You communicate clearly and build trust quickly with clients and teammates
• You’re pragmatic, adaptable and outcome‑focused
• You enjoy sharing knowledge and helping others grow
• You value low‑ego collaboration and enjoy working as part of multidisciplinary teams

About the Role

We are seeking an experienced Site Reliability Engineer (SRE) to join our platform engineering team. In this role, you will bridge the gap between development and operations by applying engineering mindsets to system administration topics. You will be responsible for the availability, latency, performance, efficiency, monitoring, and emergency response of our core cloud services.

The ideal candidate will have strong expertise in automating infrastructure within Microsoft Azure, managing container orchestration via Kubernetes, and driving Infrastructure as Code (IaC) using Terraform.

Key Responsibilities:

• Reliability & Availability: Design, build, and maintain highly available, fault‑tolerant infrastructure and platforms in Microsoft Azure.
• Infrastructure as Code (IaC): Standardize, provision, and maintain infrastructure deployments globally using Terraform.
• Orchestration & Deployments: Manage, secure, and scale production‑grade Kubernetes clusters (e.g., AKS), ensuring zero‑downtime deployment pipelines.
• Automation: Eliminate toil by automating manual operational tasks, self‑healing systems, and CI/CD automation pipelines.
• Incident Management & Postmortems: Lead incident response, participate in an on‑call rotation, and drive blame‑free postmortems to prevent repeat incidents.
• SLOs & SLIs: Define, track, and maintain Service Level Indicators (SLIs), Service Level Objectives (SLOs), and Error Budgets alongside development teams.

Requirements:

Must‑Have Skills & Experience:

• Microsoft Azure: Strong hands‑on experience designing, provisioning, securing, and maintaining scalable cloud environments across Azure services (e.g., AKS, Virtual Networks, Key Vault, Azure DevOps).
• Terraform: Proven track record writing modular, clean, and reusable Infrastructure as Code (IaC) modules to manage cloud estates.
• Kubernetes (K8s): Deep understanding of Kubernetes concepts, architecture, and production administration (including ingress controllers, Helm charts, stateful sets, and cluster security).
• CI/CD & Scripting: Practical proficiency with shell scripting (Bash) and at least one programming language (e.g., Python, Go) along with modern CI/CD tooling (e.g., Azure DevOps, GitHub Actions, GitLab).
• Networking & Security Fundamentals: Solid grasp of cloud networking (DNS, routing, load balancers, VPNs) and security best practices (identity management, secret management, least‑privilege access).

Nice‑to‑Have Skills:

• Observability Platforms: Prior experience configuring monitors, dashboards, alerting policies, and traces in New Relic or Datadog.
• Familiarity with GitOps workflows and tools (e.g., ArgoCD, Flux).
• Experience with configuration management tools (e.g., Ansible).
• Relevant certifications: Microsoft Certified: Azure Solutions Architect Expert, Certified Kubernetes Administrator (CKA), or HashiCorp Certified: Terraform Associate.

Why join AND Digital?

We’re building a culture where talented people can do meaningful work, continue growing, AND enjoy the journey along the way.

Our model is designed to build belonging and connection: we’re organised into regional ‘Clubs’ of no more than 80 people, so you (and our clients) get the benefits of that small company feel while also being connected to a larger whole.

Our Practice Areas act as a ‘second home’ for our ANDis - a place where you can innovate and learn with like‑minded experts who care deeply about their craft, support each other generously, and believe the best ideas come from collaboration, not hierarchy.

Our culture is rooted in our values of Wonder, Share and Delight, and shows up through five traits that we celebrate and nurture in all our ANDis: we value curiosity, ambition and a growth‑mindset. We are deeply client‑centric. Most important of all we are human - we create an inclusive environment where people feel trusted, supported and able to be themselves.

By joining AND, we’ll provide:

• 25 days bookable holiday + flexible Bank Holidays
• Pension: 6% of salary paid by AND Digital with a further 2% paid by you (can be increased by choice).
• Aviva healthcare cover (including pre‑existing condition cover) for you.
• Flexibenefit: £1000 assigned to you via our benefits portal to select or upgrade the benefits that suit you the most. Any unused allowance from the £1000 can be taken as cash.
• Life Assurance.
• Income Protection.
• Eye test + first pair of glasses.
• Parental Benefits: Generous Enhanced Maternity and Enhanced Partner (Paternity) Leave.

Equal Opportunities Statement

Diversity and inclusion are hugely important to us, and we’re committed to providing equal opportunities for all. We’re actively recruiting for a diverse and inclusive workforce so want to ensure we do everything we can to support your application.

We want you to feel safe and empowered to let us know if you need any adjustments to be made to your application or interview process, so please speak to our recruitment team.

AI Statement
We champion tech that helps people work smarter, but we want to get to know you! If you use AI to assist with your application or interview prep, please ensure all information submitted remains an accurate, truthful representation of your personal achievements and capabilities rather than generating false or misleading information. We may reject applications where AI is used inappropriately at any stage of the recruitment process.