Senior DevOps Engineer
Job summary
As a Senior DevOps Engineer, you will join a substantial global engineering organisation and work in a team of highly skilled engineers in the SaaS platform area. You will be part of a team that follows Agile methodologies to deliver market-leading insurance solutions. This is a new position created as the organisation continues to grow and accelerate the delivery of innovative solutions that harness the latest advances in technology. The role is to work on the evolution of the SaaS delivery platform for WTW’s flagship product Radar Live SaaS. You will have worked on large scale and globally deployed SaaS applications that have a mature stack management capability. A sound technical background is essential to be successful in this role with experience in delivering large scale Cloud services. The ideal candidate will enjoy building automated, environment-agnostic cloud platforms. Have strong troubleshooting and operational instincts. Prefer IaC and policy-driven automation over manual work. Be comfortable working across Dev, Ops, Security, and Architecture. Can balance reliability, quality, speed, and practical engineering trade-offs.
Benefits
Qualifications
- Strong experience with OpenTofu/Terraform for IaC
- Hands-on expertise with AKS, including cluster operations, node pools & autoscaling, ingress, cert-manager, CNI, and workload deployment patterns
- Experience with Azure Cloud Services: Azure Front Door (AFD), API Management (APIM), Azure DNS, Key Vault, MSI, networking, identity / Azure Entra ID
- Experience with monitoring tools: Datadog, Log Analytics, Azure Monitor
- Skilled in scripting (PowerShell, Bash, Python) for automation
- Proficient in Azure DevOps: repos, pipelines, artifacts
- Solid understanding of Azure networking, DNS/private endpoints, Certificate/Secret management
- Strong debugging and operational experience (SRE mindset)
- Solid experience with DevSecOps architecture, processes & tooling
- Solid understanding of Observability: logging, metrics, traces, dashboards
- Experience with GitOps (ArgoCD or GitOps workflows)
- Experience with zero downtime deployments (blue/green/canary patterns)
- Experience with Prometheus/Grafana
- Microsoft Azure Certification (Az-104, Az-305, Az-400)
- Kubernetes Certification (CKA)
- Terraform Associate / OpenTofu equivalent
- Experience with high volume low latency SaaS systems
- Experience with distributed and event driven architectures
- Experience with Ingress Solutions such as Azure Front Door and API Management
- Experience with IAM, Authentication / Authorisation
Responsibilities
- Maintain and extend IaC modules using OpenTofu
- Implement reusable, parameterized templates for Azure infrastructure
- Automate environment provisioning across development and production
- Manage backend state, pipelines, and state-change detection integrations
- Own and improve reliability, observability, and performance of the platform
- Implement SLOs, alerting, dashboards, and auto remediation
- Troubleshoot cluster level, networking, and workload deployment issues
- Lead root cause analysis (RCA) and drive long-term reliability improvements
- Develop automation scripts and tooling in PowerShell
- Build and optimize Azure DevOps (ADO) YAML pipelines
- Integrate automated testing, security scanning, and automated rollout strategies (blue/green or canary)
- Work in an Agile environment using ADO for planning and tracking
- Collaborate closely with developers, platform engineers, and security
- Participate in on-call rotations