(SC cleared) Senior Network Architect - Cisco

We are seeking a Senior Network Architect to assess, document and improve enterprise network architecture in a secure defence environment. You will combine detailed technical investigation with clear design documentation and practical recommendations for operational resilience. 

Your initial assignment will support bridging the Gap programme and its Network team. The estate spans two data centres and includes Cisco ACI, Cisco routers, Cisco ASA firewalls and F5 load balancers.

Working alongside Architecture and Network support teams, you will establish an accurate view of the existing network, recommend improvements with minimal operational risk and assess the changes needed to support true active/active connectivity between the two data centres. 

Salary: between £70,000 to £80,000

Location: Bristol (no remote working)

Clearance: a minimum of UK SC clearance

What you will do: 

• Review the live network implementation, configurations and legacy design material across both data centres, identifying gaps between documented and actual operation. 

• Produce accurate current-state High Level Designs and Low Level Designs using company templates, supported by clear topology diagrams, connectivity flows and technical dependencies. 

• Review Cisco ACI, routing, firewall and load-balancing arrangements