DevOps Engineer
Willis Towers Watson6 days ago
Reigate, United KingdomSenior
Responsibilities
- Maintain and extend OpenTofu/Terraform infrastructure-as-code modules and reusable Azure infrastructure templates.
- Automate environment provisioning across development and production, including backend state, pipelines, and state-change detection integrations.
- Operate and improve AKS clusters, including node pools, autoscaling, ingress, cert-manager, networking, and workload deployment patterns.
- Own platform reliability, observability, performance, SLOs, alerting, dashboards, auto-remediation, and long-term reliability improvements.
- Troubleshoot cluster, networking, and workload deployment issues and lead root cause analysis.
- Develop automation scripts and tooling using PowerShell, Bash, and Python.
- Build and optimize Azure DevOps YAML pipelines with automated testing, security scanning, and blue/green or canary rollout strategies.
- Collaborate with developers, platform engineers, security, and architecture teams in an Agile delivery environment.
- Participate in on-call rotations if required.
Requirements
- Strong experience with OpenTofu or Terraform for infrastructure as code.
- Hands-on AKS expertise covering cluster operations, node pools, autoscaling, ingress, cert-manager, CNI, and workload deployment patterns.
- Experience with Azure services including Azure Front Door, API Management, Azure DNS, Key Vault, managed service identity, networking, and Azure Entra ID.
- Experience with Datadog, Log Analytics, and Azure Monitor.
- Proficiency in PowerShell, Bash, Python, and Azure DevOps repositories, pipelines, and artifacts.
- Strong understanding of Azure networking, DNS, private endpoints, certificate management, and secret management.
- Strong debugging and operational experience with an SRE mindset.
- Solid experience with DevSecOps architecture, processes, tooling, and observability practices involving logging, metrics, traces, and dashboards.
- Experience with GitOps, ArgoCD, zero-downtime deployment patterns, Prometheus, or Grafana is desirable.
- Microsoft Azure, Kubernetes, or Terraform/OpenTofu certifications are desirable.
- Experience with high-volume, low-latency SaaS systems; distributed and event-driven architectures; ingress solutions; IAM; authentication; or authorization is desirable.
- Degree in Computer Science, Engineering, or Mathematics, or equivalent industry experience.
- General knowledge of the insurance industry and appreciation of current and emerging technologies.
Benefits
- 25 days of annual leave plus an additional WTW day.
- Private healthcare, life insurance, group income protection, and regular health assessments.
- Defined contribution pension scheme with company-matched contributions up to 10%.
- Hybrid working options, an employee assistance programme, and a fully paid volunteer day.
- Optional electric vehicle car scheme, share scheme, cycle-to-work programme, dental and optical cover, critical illness protection, and other perks.
Tech Stack
Categories
DevOpsSite Reliability
About Willis Towers Watson
At WTW (NASDAQ: WTW), we provide data-driven, insight-led solutions in the areas of people, risk and capital. Leveraging the global view and local expertise of our colleagues serving 140 countries and markets, we help you sharpen your strategy, enhance organizational resilience, motivate your workforce and maximize performance.