Senior Cloud Engineer, Cloud COE
Janus Henderson · London
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- Senior Cloud Engineer, Cloud COE
- City: London
- Division: Infrastructure & Cloud Operations
Why work for us?
A career at Janus Henderson is more than a job, it’s about investing in a brighter future together.
Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right.
Our Values are key to driving our success, and are at the heart of everything we do:
Clients Come First - Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust
If our mission, values, and purpose align with your own, we would love to hear from you!
Your opportunity
The Senior Cloud Engineer – Cloud COE is a hands-on engineering role responsible for building, automating and operating Azure cloud platforms. Reporting to Tech Lead – Cloud COE, this role focuses on Terraform-led infrastructure, Azure platform engineering, AKS, AVS, Azure Arc and BAU operations.
Core responsibilities
Cloud Engineering & Platform Delivery
- Build, configure, and manage Azure infrastructure services including compute, storage, networking, backup, and platform services
- Support deployment of enterprise landing zones, shared services, and workload environments
- Implement cloud solutions aligned with architecture patterns and enterprise standards
- Work closely with Tech Lead and Architecture teams to deliver strategic cloud initiatives
Infrastructure-as-Code (Terraform Focus)
- Develop and maintain Terraform modules and reusable infrastructure components
- Deliver infrastructure provisioning via CI/CD pipelines (GitHub / Azure DevOps)
- Ensure infrastructure deployments are consistent, version-controlled, and policy-compliant
- Manage drift detection, environment consistency, and release governance
Azure Core Platform Skills
- Hands-on engineering across:
- Subscriptions, Management Groups, RBAC, Policy
- Virtual Machines, Storage, Backup, DR
- Azure Monitor, Log Analytics
- Private Endpoints and secure service exposure
- Implement secure-by-design configurations aligned to enterprise cloud controls
Azure Kubernetes Service (AKS)
- Deploy, configure, and support AKS clusters
- Manage cluster scaling, patching, upgrades, and networking integration
- Support container platform operations including monitoring and reliability
- Collaborate with application teams for containerised workload deployments
Azure VMware Solution (AVS)
- Support AVS environments including connectivity, operations, and monitoring
- Assist with workload migrations and integration with Azure-native services
- Work with infrastructure teams to ensure stable hybrid VMware-cloud operations
Azure Arc & Hybrid Cloud
- Implement and manage Azure Arc-enabled servers and services
- Apply governance, policy, and monitoring across hybrid estates
- Support consistency of operations across on-prem, AVS, and Azure-native environments
Cloud Networking & Connectivity
- Configure and manage:
- VNets, NSGs, UDRs
- VPN Gateway, ExpressRoute
- Private Endpoints and DNS
- Troubleshoot hybrid connectivity and latency issues
- Support secure network design and segmentation
Identity, Access & Security
- Support Microsoft Entra ID (Azure AD) configurations and integrations
- Implement RBAC, SSO, and least privilege access models
- Assist with security controls, compliance policies, and remediation activities
Monitoring, BAU & Incident Management
- Support business-as-usual (BAU) cloud operations across environments
- Monitor cloud services using Azure Monitor, Log Analytics, and alerting tools
- Investigate incidents, perform root cause analysis, and implement fixes
- Maintain platform stability, uptime, and service performance
Collaboration & Engineering Excellence
- Work closely with:
- Cloud COE team
- Platform Engineering
- Security and Architecture teams to contribute to internal Tech Architecture Board
- Contribute to reusable templates, standards, and best practices
- Drive automation-first mindset and continuous improvement
What to expect when you join our firm
- Hybrid working and reasonable accommodations
- Generous holiday policies
- Excellent health and wellbeing benefits
- Paid volunteer time
- Professional development and certifications
- Parental leave benefits
- Access to Headspace
- Employee events and networking opportunities
- Subsidised lunch allowance
Must have skills
- 5+ years of hands-on cloud engineering experience with Microsoft Azure
- Strong Terraform (IaC) experience – module design, pipelines, governance
- Deep knowledge of core Azure services (compute, storage, networking, identity)
- Hands-on experience with:
- Azure Kubernetes Service (AKS)
- Azure networking (VNet, DNS, Private Endpoints, ExpressRoute/VPN)
- Microsoft Entra ID / RBAC
- Experience supporting BAU operations, incident management, and troubleshooting
- Strong scripting skills (PowerShell, Bash, or Python)
- Experience with CI/CD pipelines (GitHub / Azure DevOps)
- Understanding of cloud security and governance best practices
- Experience working in enterprise-scale environments
Nice to have skills
- Experience with Azure VMware Solution (AVS)
- Experience with Azure Arc (hybrid governance and management)
- Exposure to FinOps / cost optimization practices
- Certifications:
- AZ-104 (Azure Administrator)
- AZ-305 (Azure Architect)
- AZ-700 (Networking)
- Terraform certification
- Experience in financial services or regulated environments
Supervisory responsibilities
No direct line management (individual contributor role with high technical ownership)
Potential for growth
- Progression to Tech Lead / Staff Engineer
- Exposure to enterprise architecture and strategic cloud programmes
- Opportunity to lead platform engineeri
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