Network & Security Consultant

Job Title: Network & Security Consultant
Day Rate: £400-450 per day - Outside IR35/Limited Company
Duration: 6 months initially
Location: Central London - Fully onsite
Start Date: ASAP

Role
We are assisting a client who require an experienced Cisco Network & Security Consultant to support a network and security infrastructure refresh, covering the deployment of Cisco Secure Firewall technology alongside a Cisco switching migration.
This role requires strong technical capability across both network security and enterprise networking, with particular emphasis on Cisco Secure Firewall and advanced BGP.

Key Responsibilities

• Design and deployment of a new Cisco Secure Firewall Management Center (FMC) High Availability pair
• Deployment and configuration of HA pair Cisco Secure Firewalls
• Migration of existing Legacy Firewall configurations to the new environment
• Review and optimisation of migrated configurations in line with current Cisco and security best practices
• Configuration and migration of Firewall policies, NAT, objects and routing
• Integration of the new Firewall infrastructure with the existing network
• Configuration and troubleshooting of BGP and associated routing
• Migration of Cisco Catalyst 3850 switch stacks to Catalyst 9300
• Migration of VLANs, trunks, port channels and Layer 3 configurations as required
• Production implementation, testing and cutover
• Troubleshooting across network, routing and security layers
• Production of relevant technical and implementation documentation

Essential Skills & Experience

• Strong hands-on experience with Cisco Secure Firewall/FTD
• Strong experience with Cisco Firewall Management Center (FMC)
• Experience deploying FMC and Firewalls in High Availability configurations
• Proven experience with Firewall migrations and configuration optimisation
• Advanced BGP knowledge, including configuration and troubleshooting
• Strong understanding of routing protocols and enterprise network design
• Cisco Catalyst switching experience
• Experience with Catalyst 3850 and Catalyst 9300 platforms
• Strong knowledge of VLANs, trunking, EtherChannel/PortChannel and Layer 3 switching
• Experience delivering network and security changes within production environments
• Strong troubleshooting skills across both networking and security technologies

Technical Environment

Cisco Secure Firewall | FTD | FMC | High Availability | BGP | Routing | Cisco Catalyst 3850 | Cisco Catalyst 9300 | Switching | VLANs | NAT | Firewall Policy | Network Security