Duration: 6 Months

Location:Milton Keynes & remote (hybrid)

Rate: £500 - £540 per day

Start: ASAP

IR35 Status: Inside

 

A Senior Network Engineer is required for our Government client to be responsible for designing, implementing, securing and maintaining enterprise network infrastructure with a focus on high availability, performance and resilience.

This role provides advanced technical leadership across routing, switching, firewall administration and network security operations. You will also serve as an escalation point for complex issues involving Cisco switching platforms, Cisco Firepower Threat Defence (FTD) and Palo Alto Networks Next-Generation Firewalls, ensuring the network reliably supports business operations.

Responsibilities include:

Enterprise LAN/WAN design, optimisation and lifecycle management

Firewall, IPS/IDS, and network security policy management

Advanced troubleshooting of network performance, connectivity, and security issues

Leading network modernisation, migration, and automation initiatives

Ensuring compliance with security frameworks and organizational standards

Collaboration with cross-functional IT teams to deliver secure, scalable solutions

 

Essential Skills & Experience required:

As the Senior Network Engineer you will possess the following skills & experience:

Experience of support and design working within highly secure environments - essential

Cisco Switching, Routing, Security and wireless technologies

Network Protocols TCP/IP, BGP, ICMP, OSPF, IPSEC

Cisco ASA Firewall Administration and design

Cisco Firepower ( NGFW)

Palo Alto Firewall administration.

Knowledge of Virtual Environments and virtual network solutions,(ie VMWare )

Experience in Cisco ISE and PRIME

BIG IP F5 Administration \ Configuration – LTM, ASM

Network Monitoring PRTG

Cisco ACI

Azure \ AWS experience

 

Desirable Skills and Experience:

Experience of working within a variety of ITIL4 environments.

Knowledge of IT Service Management toolsets ie ServiceNow

Key performance reporting and documentation

Stakeholder Management

Leadership skills

Experience of working in Government Sector

 

If this role is of interest please email your CV to: joanne.stanley@certes.co.uk