Role Summary:
We are looking for a DevOps Engineer to design, operate and continuously improve our Kubernetes-based AI infrastructure. This hands-on role will focus on cloud-native platform engineering, GPU-accelerated workloads, bare-metal servers, automation and systems reliability, helping to deliver a secure, scalable and high-performing AI platform for ML engineers, data scientists and enterprise customers.

You will help build and operate our AI infrastructure, supporting Linux systems, Kubernetes platforms and automation initiatives. Working alongside experienced engineers and technology partners, you’ll contribute to the delivery of secure, reliable and scalable services.

Responsibilities:

• Deploy and maintain bare-metal servers, Linux systems and data-centre infrastructure.
• Configure, support and troubleshoot Kubernetes clusters and workloads.
• Manage NVIDIA GPU infrastructure, monitoring performance and resource utilisation.
• Automate infrastructure and operational processes using IaC and DevOps tools.
• Support security, access management and platform governance.
• Collaborate with engineering teams, vendors and customers to resolve technical issues.
• Produce technical documentation and support infrastructure deployments.
• Participate in operational support and on-call activities.

Required Skills & Experience:

• Experience working with Linux servers and infrastructure environments.
• Exposure to bare-metal hardware, data centres or enterprise platforms.
• Knowledge of Kubernetes and containerised environments.
• Understanding of NVIDIA GPUs, AI infrastructure or high-performance computing environments.
• Familiarity with Infrastructure-as-Code, automation and scripting tools.
• Experience with technologies such as Ansible, Git, YAML, Python or CI/CD pipelines.
• Strong troubleshooting skills and willingness to learn new technologies.
• Ability to work across infrastructure, platform and operational environments.

Why Join Era4:

You’ll be joining a mission-driven start-up building critical national infrastructure, where operational excellence directly enables growth. This role offers high visibility with leadership, real autonomy, and the chance to shape how a next-generation company operates at scale.

Diversity & Inclusion:

Era4 is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Note:

We appreciate this is a relatively new skill set and we are open to candidates who may not tick all the boxes but are willing to learn and develop their skillset.

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.
The Role

As a Senior DevOps Engineer, you will be expected to:

Infrastructure-as-Code (IaC)

• Maintain and extend IaC modules using OpenTofu (Terraform fork).
• Implement reusable, parameterized templates for Azure infrastructure.
• Automate environment provisioning across development and production.
• Manage backend state, pipelines, and state-change detection integrations.

Platform Engineering & SRE

• Own and improve reliability, observability, and performance of the platform.
• Implement SLOs, alerting, dashboards, and auto remediation where possible.
• Troubleshoot cluster level, networking, and workload deployment issues.
• Lead root cause analysis (RCA) and drive long-term reliability improvements.

Automation & Tooling

• Develop automation scripts and tooling in PowerShell.
• Build and optimize Azure DevOps (ADO) YAML pipelines.
• Integrate automated testing, security scanning, and automated rollout strategies like blue/green or canary where appropriate.

Workflow & Delivery

• Work in an Agile environment using ADO for planning and tracking.
• Collaborate closely with developers, platform engineers, and security.
• Participate in on-call rotations (if required).

Qualifications

What you’ll bring 

The essential skills/experience for this position are:

• Strong experience with OpenTofu/Terraform for IaC.
• Hands‑on expertise with AKS, including:
  • cluster operations
  • node pools & autoscaling
  • ingress, cert-manager, CNI
  • workload deployment patterns
• Experience of Azure Cloud Services:
  • Azure Front Door (AFD) and API Management (APIM)
  • Azure DNS, Key Vault, MSI, networking, identity / Azure Entra ID
• Monitoring: Datadog, Log Analytics, Azure Monitor
• Skilled in Scripting (PowerShell, Bash, Python) automation.
• Proficient in Azure DevOps: repos, pipelines, artifacts.
• Solid understanding of Azure networking, DNS/private endpoints, Certificate/Secret management etc
• Strong debugging and operational experience (SRE mindset).
• Solid experience of DevSecOps architecture, processes & tooling
• Solid understanding of Observability
  • Process & Tooling
  • Logging, metrics, traces, dashboards

Other highly desirable, but not essential skills are:

• Experience with:
  • GitOps – ArgoCD or GitOps workflows
  • Zero downtime deployments (blue/green/canary patterns)
  • Prometheus/Grafana
• Microsoft Azure Certification (Az-104, Az-305, Az-400).
• Kubernetes Certification (CKA).
• Terraform Associate / OpenTofu equivalent (when available).
• 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.
• Degree-educated in Computer Science, Engineering, Mathematics or equivalent industry experience
• Appreciation of current and emerging technologies along with their potential benefits and limitations.
• General knowledge of the Insurance Industry.

What we offer 

Enjoy a benefits package designed to help you thrive, both professionally and personally. You’ll receive 25 days of annual leave plus an extra WTW day to relax and recharge. Our comprehensive health and wellbeing offering includes private healthcare, life insurance, group income protection, and regular health assessments, all giving you peace of mind. Secure your future with our defined contribution pension scheme, featuring matched contributions up to 10% from the company.

We support your growth and balance with hybrid working options, access to an employee assistance programme, and a fully paid volunteer day to make a difference in your community. On top of these, you can opt into a variety of additional perks including an electric vehicle car scheme, share scheme, cycle-to-work programme, dental and optical cover, critical illness protection, and much more. Start making the most of your career and wellbeing with a range of benefits tailored for you.

Equal Opportunity Employer

We’re committed to equal employment opportunity and provide application, interview and workplace adjustments and accommodations to all applicants. If you foresee any barriers, from the application process through to joining WTW, please email candidate.helpdesk@wtwco.com