Network Security Engineer - Vunerability and Patch Management

• Carry out approved firewall and network security infrastructure changes.
• Perform pre- and post-maintenance checks and validation testing.
• Troubleshoot issues arising from security infrastructure changes.
• Maintain change records and operational handover documentation.

• Strong hands-on enterprise network security engineering experience.
• Practical experience across technologies including:
• Check Point, Palo Alto and Fortinet
• Cisco ISE and Cisco Firewall/FMC
• Citrix NetScaler
• Experience patching and upgrading security infrastructure in live production environments.
• Good understanding of firewalls, authentication and access control.
• Familiarity with ITIL change management and rollback procedures.

Experience within utilities, energy or critical infrastructure environments, together with relevant security certifications, would be advantageous.

Duration: 6 Months Shift Pattern: Nights Only - Expected 4 On / 4 Off, 12-Hour Shifts (5:30pm-5:30am) - TBC IR35: Inside IR35 - Umbrella Company

We are looking for experienced Network Security Engineers to support a major cybersecurity vulnerability remediation and infrastructure patching programme within a large enterprise environment.

This is a hands-on engineering role involving firewall, security infrastructure and access control platform patching during planned overnight maintenance windows., Important: This is a nights-only contract, expected to follow a 4-on/4-off shift pattern. The role is fully remote within the UK and inside IR35, with payment through an umbrella company.