Network Security Engineer

Network Security Engineer - £550 per day - Inside IR35 - Remote - 6 Months initial contract.

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We are seeking an experienced Network Security Engineer Contractor to join a high-performing Security Engineering team supporting enterprise-scale security infrastructure and transformation initiatives. This role is ideal for a hands-on engineer with strong expertise across next-generation firewalls, SASE technologies, network security operations, and infrastructure security within complex regulated environments.
The successful candidate will operate within a SAFe-aligned Agile delivery environment and contribute to the engineering, administration, and continuous improvement of critical security platforms and services.
Key Responsibilities -
Operate as part of the Security Engineering team delivering enterprise security capabilities.
Work within SAFe Agile practices, participating in daily stand-ups, sprint planning, retrospectives, and other delivery ceremonies.
Maintain accurate workload management, delivery tracking, and time logging within Jira.
Engineer, support, and maintain Next Generation Firewall (NGFW) and Secure Access Service Edge (SASE) solutions.
Translate customer and operational requirements into actionable engineering tasks and technical solutions.
Provide technical escalation support to junior engineers and operational teams.
Produce and maintain high-quality technical documentation, including knowledge base articles and operational procedures.
Deliver technical knowledge transfer sessions and support capability uplift across the wider team.
Participate in occasional out-of-hours support activities for priority changes or incident response.

Technical Skills & Experience -
Network & Security Technologies -
The ideal candidate will demonstrate experience across as many of the following technologies as possible:
Enterprise-grade Next Generation Firewalls, particularly: Palo Alto Networks
Fortinet
Firewall policy administration, security profile configuration, and lifecycle management.

Management platforms such as: Panorama
FortiManager
FortiAnalyzer

Strong Routing & Switching fundamentals.
Secure Access Service Edge (SASE) platforms and architectures.
Load balancing and application delivery technologies, primarily F5.
Email security gateways and email hygiene solutions such as Mimecast.
Network monitoring and troubleshooting tooling.
Laptop build and endpoint configuration processes aligned to organisational standards.
Pre-logon authentication and Host Integrity Profile implementation and support.
Certificate services administration and secure VPN configuration.
Security & Exposure Management -
Experience with Exposure and Vulnerability Management platforms such as Tenable One.
Strong analytical troubleshooting and problem-solving capability.
Understanding of security architecture principles and secure design practices.
Experience supporting or contributing to Security Risk Assessments.
Ability to produce and maintain:
Network diagrams
High-Level Designs (HLDs)
Low-Level Designs (LLDs)
Security designs
Risk assessment documentation
Cloud & Infrastructure
Working knowledge of AWS and Azure infrastructure and cloud security services.
Soft Skills & Attributes -
Strong stakeholder engagement and customer-facing communication skills.
Ability to work independently while collaborating effectively within multidisciplinary teams.
Experience working within SAFe, Scrum, or similar Agile delivery frameworks. xwzovoh
Proven collaboration with:
IT Operations
Security Operations
Governance, Risk & Compliance teams
Architecture and Engineering teams
Previous experience within an MSSP or highly regulated environment (such as nuclear, utilities, defence, or critical infrastructure) would be advantageous.