Network Engineer
Posted Today by Investigo Change Solutions
£600 Per day
Inside
Onsite
Stafford, UK
Summary: The Network Engineer role involves supporting a secure, high-availability environment for a critical UK public sector programme. The position requires expertise in network design, build, and operational support, focusing on maintaining the organisation's LAN architecture. The successful candidate will ensure resilience, performance, and security across multiple secure sites. Active NPPV3 clearance is essential for this position.
Key Responsibilities:
- Design, implement, and maintain secure LAN infrastructures across multiple physical locations
- Configure and manage FortiGate Firewalls, including rule sets, VPNs, and policy optimisation
- Deploy, integrate, and manage Cisco LAN Switches to enterprise standards
- Lead the build-out of new LAN environments from scratch, including configuration, testing, and documentation
- Conduct proactive performance monitoring, capacity planning, and incident response
- Collaborate closely with infrastructure, security, and project delivery teams to ensure seamless service transitions
- Support audits, compliance checks, and vulnerability remediation within secure networks
Key Skills:
- Proven experience in enterprise networking with a strong focus on FortiGate Firewalls and Cisco switch configuration
- Hands-on experience designing and deploying LAN environments (from greenfield through to production)
- Excellent understanding of routing, switching, VLANs, subnetting, VPNs, and network segmentation
- Strong knowledge of network security principles, high-availability design, and resilience planning
- Experience working within secure or regulated environments (Public Sector, Defence, or similar)
- Ability to produce detailed technical documentation and handover materials
Salary: £600 per day
City: Stafford
Country: UK
Working Arrangements: on-site
IR35 Status: inside IR35
Seniority Level: undetermined
Industry: IT
Network Engineer - Onsite | Inside IR35 | NPPV3 Cleared
We're seeking a highly capable Network Engineer to support a secure, high-availability environment for a critical UK public sector programme. This role sits within a technically mature infrastructure team delivering network design, build, and operational support across multiple secure sites.
You'll be joining an environment where reliability, scalability, and compliance are non-negotiable. The successful engineer will play a central role in shaping and maintaining the organisation's LAN architecture, ensuring resilience, performance, and security throughout the network estate.
Key Responsibilities
Design, implement, and maintain secure LAN infrastructures across multiple physical locations
Configure and manage FortiGate Firewalls, including rule sets, VPNs, and policy optimisation
Deploy, integrate, and manage Cisco LAN Switches to enterprise standards
Lead the build-out of new LAN environments from scratch, including configuration, testing, and documentation
Conduct proactive performance monitoring, capacity planning, and incident response
Collaborate closely with infrastructure, security, and project delivery teams to ensure seamless service transitions
Support audits, compliance checks, and vulnerability remediation within secure networks
Essential Skills and Experience
Proven experience in enterprise networking with a strong focus on FortiGate Firewalls and Cisco switch configuration
Hands-on experience designing and deploying LAN environments (from greenfield through to production)
Excellent understanding of routing, switching, VLANs, subnetting, VPNs, and network segmentation
Strong knowledge of network security principles, high-availability design, and resilience planning
Experience working within secure or regulated environments (Public Sector, Defence, or similar)
Ability to produce detailed technical documentation and handover materials
Clearance Requirement
Active NPPV3 clearance is essential for this role (cannot consider applicants without this level).
Contract Details
Location: Onsite
Contract Type: Inside IR35
Duration: Initial 6 months with likely extensions
