SC Cleared Network Engineer

SR2; City Of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A technology consultancy partner is seeking an experienced Network Engineer to design and maintain secure on-premises network infrastructure. This contract role emphasizes collaboration with cross-functional teams and requires active SC clearance. The ideal candidate has hands-on expertise with Cisco, Palo Alto, and NSX-T technologies, and understands complex network dynamics.

Qualifications

• 3+ years' experience as a Network Engineer in secure or regulated environments.
• Strong knowledge of switching, routing, firewalls, VLANs, VNets, BGP, and software-defined networking.
• Hands-on experience with Cisco, Palo Alto, NSX-T, and Fortigate technologies.

Responsibilities

• Design, implement, and optimise secure on-premises network infrastructure.
• Configure, manage, and troubleshoot network devices.
• Collaborate with teams for integrating new solutions.

Skills

Network engineering

Cisco

Palo Alto

NSX-T

Troubleshooting

Scripting for automation

Documentation skills

Education

Professional certifications (e.g. CCNA, CCNP, CCDP)

Tools

Cisco switches/routers

Palo Alto firewalls

Fortigate firewalls

NSX-T

Job description

Overview

SC Cleared Network Engineer | Cisco | Palo Alto | NSX-T | Defence | Contract. SR2 is supporting a consultancy partner on a multi-year project and we're looking for an experienced Network Engineer to join the dedicated product team building and supporting a highly secure, state-of-the-art digital platform. This role will focus on designing, building, and maintaining secure on-prem network infrastructure, collaborating with security, platform, and architecture teams to deliver solutions in a highly regulated environment.

Responsibilities

• Design, implement, and optimise secure on-premises network infrastructure
• Configure, manage, and troubleshoot Cisco switches/routers, Palo Alto firewalls, Fortigate firewalls, and NSX-T
• Build and maintain both physical and virtualised network environments
• Support high availability, scalability, and performance across the network estate
• Prepare and deliver detailed technical design documentation and knowledge management
• Collaborate with cross-functional teams to integrate new solutions and meet evolving business needs
• Ensure compliance with governance, change control, and security accreditation processes

Skills & Experience Required

• 3+ years' experience as a Network Engineer in secure or regulated environments
• Strong knowledge of switching, routing, firewalls, VLANs, VNets, BGP, and software-defined networking
• Hands-on experience with Cisco, Palo Alto, NSX-T, and Fortigate technologies
• Proven troubleshooting skills and ability to deliver pragmatic solutions in complex environments
• Familiarity with scripting for automation (e.g. PowerShell, Bash, Python, Perl)
• Excellent documentation, communication, and stakeholder engagement skills
• Professional certifications (e.g. CCNA, CCNP, CCDP) highly desirable

The Details

• Contract role - long-term programme
• Rate: Market rate (Inside IR35)
• Location: Hybrid with secure site access required
• Clearance: Active SC clearance required
• Start: ASAP

If you're a Network Engineer with strong on-premises expertise and experience working in secure environments, apply now for immediate consideration