Network Architect – Enterprise IP Programme

About the role

We are seeking an experienced Network Architect to join a large‑scale programme focused on reviewing, assessing and improving enterprise IP networking environments. The role is hybrid, requiring 1‑2 days per week on site in London, and will initially run for three months.

Key responsibilities

• Assess large enterprise IP address environments and provide technical recommendations.
• Review network infrastructure, routing and addressing to identify risks and inefficiencies.
• Analyse network utilisation, routing information and infrastructure data from multiple technical sources.
• Support the development of governance standards, IP management processes and future‑state network architecture.
• Evaluate BGP routing, network visibility and routing security best practices.

Required profile

• Proven experience designing and optimising complex network estates.
• Strong knowledge of IPv4 addressing, subnetting and IP address management; IPv6 knowledge is beneficial.
• Excellent understanding of BGP, routing architecture and network design principles.
• Familiarity with routing security technologies such as RPKI or ROA.
• Experience with IPAM platforms, DNS, firewalls, cloud networking and network management tools.

Required skills

• IPv4 addressing
• Subnetting
• IP address management (IPAM)
• IPv6 (knowledge)
• BGP routing
• Routing architecture
• Network design
• RPKI / ROA
• DNS
• Firewalls
• Cloud networking
• Network management tools