London/Reading – 1-2 days per week on site

We are seeking a Telco Cloud Infrastructure Architect to deliver HLD/LLD designs for large-scale telecom transformation programmes spanning 5G Core, IMS, and cloud-native infrastructure .

Key Responsibilities

• Design vendor-neutral HLD/LLD architectures for Telco Cloud platforms
• Support migration from VMware to Red Hat / Wind River / cloud-native environments
• Define resilience, HA/DR, capacity and scaling models
• Deliver security-by-design (TSA-compliant) architectures
• Design IP network fabrics (Cisco / Arista) and infrastructure services (DNS, NTP, FW, LB, AAA)
• Support 5G Core, IMS, UDB, DAB and Load Balancing programmes
• Drive automation-first / GitOps operating models
• Support first-site builds and transition into BAU operations

Requi...