Network Engineer - £450 - £500 Per Day (Outside IR35) – 3 Months Rolling – London (Hybrid)
Overview
We are currently partnered with a leading UK enterprise seeking an experienced Network Engineer to join a major data centre migration and network transformation programme on an initial 3-month rolling contract in London.
The successful candidate will be responsible for designing, implementing and migrating complex enterprise network infrastructure, with a particular focus on Cisco ACI, Fortinet Firewalls and F5 Load Balancers. This is a hands-on, project-focused opportunity involving large-scale data centre migrations, network modernisation and secure connectivity across hybrid infrastructure environments, with no BAU support responsibilities.
Role & Responsibilities
Design, implement and migrate enterprise network infrastructure across complex data centre environments.
Lead technical delivery of data centre migration activities, ensuring minimal disruption to business-critical services.
Configure, deploy and troubleshoot Cisco ACI fabrics, including network policies, endpoint groups and connectivity.
Implement and manage Fortinet FortiGate firewalls, including firewall policies, routing, NAT and VPN configurations.
Configure and migrate F5 LTM load balancing solutions, ensuring application availability and performance.
Produce High-Level and Low-Level Designs (HLDs/LLDs), network diagrams and technical documentation.
Plan and execute network migration activities, including cutovers, testing, validation and rollback procedures.
Implement routing, switching, network segmentation and secure connectivity across data centre infrastructure.
Collaborate with infrastructure, cloud, security and application teams to manage dependencies throughout migration activities.
Troubleshoot complex network issues across Cisco ACI, Fortinet and F5 environments during implementation and migration.
Develop migration runbooks, implementation plans and technical handover documentation.Essential Skills & Experience
Proven experience delivering large-scale data centre migrations and enterprise network transformation projects.
Strong hands-on Cisco ACI experience, including fabric configuration, policy management, EPGs and troubleshooting.
Strong Fortinet FortiGate experience, including firewall configuration, security policies, routing, NAT and VPNs.
Hands-on F5 LTM experience, including load balancing, virtual servers, pools and application traffic management.
Strong understanding of data centre network architecture, connectivity and infrastructure migration methodologies.
Excellent knowledge of routing and switching technologies including BGP, OSPF, VLANs, NAT and IPSec VPNs.
Experience planning and executing complex network cutovers, migrations and rollback procedures.
Proven ability to troubleshoot complex connectivity, firewall and application delivery issues.
Experience working across hybrid cloud and on-premise enterprise infrastructure environments.
Familiarity with network automation technologies including Python, Terraform and/or Ansible would be advantageous.
Excellent technical documentation and stakeholder communication skills, with the ability to operate in fast-paced project environments.Package & Location
Day Rate: £450 - £500 Per Day (Outside IR35)
Contract Length: 3 Months (Rolling Contract)
Location: London (Hybrid)Network Engineer - £450 - £500 Per Day (Outside IR35) – 3 Months Rolling – London (Hybrid)