Infrastructure Architect

Enterprise Services Principal Administrator – Data Centre

Location: London - Hybrid (3 days onsite)

Role Overview

An opportunity has arisen for an experienced Enterprise Services Principal Administrator to lead the design, delivery, and evolution of a modern hybrid infrastructure environment within a large-scale enterprise organisation.

This role will play a critical part in shaping and delivering a resilient, secure, and scalable hybrid data centre strategy, supporting both on-premises platforms and cloud adoption. The successful candidate will drive transformation from traditional infrastructure models to a cloud-native, as-a-service approach, ensuring platforms remain evergreen, highly available, and aligned to business needs.

The position requires a hands-on technical leader who can operate strategically while remaining close to delivery, working across infrastructure, security, and cloud domains.

Key Responsibilities

• Design and evolve resilient hybrid data centre architectures for enterprise environments
• Lead infrastructure transformation initiatives, transitioning from traditional to modern cloud-native principles
• Own and develop 3–5 year infrastructure roadmaps aligned to business and technology strategy
• Deliver and support platforms across physical, virtual, and cloud environments
• Drive cloud adoption and integration across the organisation
• Define and implement infrastructure governance, standards, and best practices
• Lead migration planning and execution across data centre and cloud platforms
• Propose and implement technical improvements to enhance performance, resilience, and security
• Collaborate with architecture, security, and delivery teams to ensure alignment and successful outcomes
• Provide technical leadership and mentorship across infrastructure teams
• Support operational activities including incident resolution, ticket management, and on-call rota participation
• Engage with stakeholders across the business, providing guidance, challenge, and technical direction

Technical Skills and Experience

• Extensive experience designing and managing hybrid data centre environments
• Strong expertise in VMware Cloud Foundation and associated technologies including NSX-T, Avi, and Tanzu
• Proven experience with infrastructure automation and orchestration tools such as Ansible, Terraform, and GitLab
• Deep understanding of enterprise infrastructure including Linux (Red Hat Enterprise Linux, Ubuntu), VMware, HPe, and Cisco technologies
• Experience with containerisation and orchestration platforms such as Kubernetes and Docker
• Strong knowledge of networking including WAN, LAN, WLAN, routing, firewalls, IDS/IPS, and load balancing
• Solid understanding of infrastructure security including IAM, PAM, Active Directory, and Entra ID
• Experience in disaster recovery planning and implementation
• Familiarity with enterprise-grade monitoring, alerting, and high availability environments

Key Capabilities

• Ability to design resilient, scalable, and secure infrastructure solutions
• Strong experience delivering change and transformation within enterprise environments
• Proven ability to challenge stakeholders constructively and influence technical direction
• Excellent troubleshooting and problem-solving skills with a structured and logical approach
• Ability to operate across both strategic and hands-on technical responsibilities
• Strong communication skills with the ability to engage technical and non-technical stakeholders
• Experience working within large, complex organisations with multiple delivery teams

Performance Measures

• Delivery and ownership of a robust infrastructure strategy and roadmap
• High availability and performance of platforms, aligned to strict SLA targets
• Successful delivery of transformation initiatives across infrastructure and cloud
• Continuous improvement in platform resilience, security, and operational efficiency
• Effective stakeholder engagement and communication across the organisation