SC-Cleared Network Security Engineer - Remote

Syntax Consultancy Ltd; United Kingdom; Hybrid; GBP 60,000 - 81,000; Full time

Job summary

Syntax Consultancy Ltd. is seeking a Network Security Engineer with active SC clearance for a 6-month contract. The role is UK remote with hybrid options and may require occasional travel to sites across Warwick, Wokingham, Corsham and Farnborough.

Start ASAP in August/September 2026. You will own security infrastructure design and lifecycle, act as technical reference for firewall changes, support vendor incidents, and design networks with HLD/LLD guidance while delivering change control and

Qualifications

• Strong hands-on experience with F5, Zscaler, and Palo Alto technologies.
• Experience with Check Point, Juniper, Blue Coat, and Cisco Network Solutions.

Responsibilities

• Own the security infrastructure estate, processes, documentation and lifecycle management.
• Act as technical reference and escalation for security changes, modifications and firewall rule projects.
• Serve as vendor contact for security incidents.
• Design customer networks including High Level Design (HLD) and Low Level Design (LLD).
• Provide technical support and change management for physical and remote changes, inventory management.

Skills

Technical ownership

Vendor liaison

Tools

F5 BIG-IP

Zscaler

Palo Alto Networks

Check Point

Juniper Networks

Blue Coat

Cisco Network Solutions

Job description

Syntax Consultancy Ltd. is seeking a Network Security Engineer with active SC clearance for a 6-month contract. The role is UK remote with hybrid options and may require occasional travel to sites across Warwick, Wokingham, Corsham and Farnborough.

Start ASAP in August/September 2026. You will own security infrastructure design and lifecycle, act as technical reference for firewall changes, support vendor incidents, and design networks with HLD/LLD guidance while delivering change control and