Job Title: Firewall Engineer Location: London or Gloucester (Hybrid) Contract Type: 6 months, Inside IR35 Day Rate: £360 The Role Were looking for a skilled Firewall Engineer with active UK SC Clearance to join on a 6-month contract. Youll be responsible for firewall rule optimisation, configuration, and transformation activities across complex IT and OT environments. This role requires strong experience across multiple vendors (Palo Alto, Fortinet, Cisco ASA, Check Point) and the ability to collaborate with technical and non-technical stakeholders to maintain compliance and security best practice. Key Responsibilities Configure, implement, and manage firewall solutions across multi-vendor environments Review, optimise, and enforce firewall rules and policies Support migrations and replacement projects for firewall infrastructure Monitor traffic and logs, respond to incidents, and troubleshoot performance issues Apply patches, firmware updates, and maintain HA firewall clusters Ensure compliance with frameworks such as ISO 27001, NIST, PCI-DSS Automate rule management/reporting where possible (Ansible, Python, APIs) Required Experience Strong hands-on experience configuring Palo Alto, Fortinet, Cisco ASA, Check Point firewalls Skilled in firewall rule tuning and optimisation Background in firewall migration projects and multi-vendor environments Knowledge of network security architecture and best practice Active UK SC Clearance (mandatory) Why Apply? £360 a day Opportunity to work on complex, multi-vendor security projects Hybrid model London or Gloucester with some out-of-hours work