Engineer

Working with a global financial services organisation who are looking for a Network Security Engineer to help deliver a high-profile project. The Senior Network Security Engineering Lead oversees the design, operation, and ongoing enhancement of enterprise network security capabilities across data centre, campus, WAN, cloud, and hybrid infrastructure environments. Details Location - London Hybrid - 2-3 days / week in office Duration - Initially 12 months Rate - £750-£850 / day Inside IR35 via Umbrella Skills and Experience Required Strong understanding of network security principles, including security boundaries, network segmentation, micro-segmentation, and Zero Trust architectures. Extensive hands-on experience designing, implementing, and managing Palo Alto and FortiGate firewalls , along with F5 BIG-IP load balancing solutions. Proven expertise in deploying and maintaining proxy services and secure web gateway technologies. Advanced troubleshooting capabilities across Layers 2-7, combined with significant experience leading to major incident response and resolution activities. Demonstrated ability to architect secure data centre and wide area network (WAN) environments with robust segmentation and micro-segmentation strategies. Practical experience working with Cisco ACI , including security frameworks, policy enforcement, and network automation models. Strong track record in vulnerability management, remediation programmes, and coordinating security incidents and risk mitigation efforts across multiple teams. Experience operating within highly regulated industries, such as financial services, with a focus on audit compliance and maintaining comprehensive documentation. The organisation operates a Cisco-based networking infrastructure supplemented by security technologies such as Palo Alto and FortiGate. Candidates should possess strong expertise in network routing protocols, secure network architecture, and modern security frameworks, including Zero Trust and network segmentation methodologies. Core Competencies: Firewall experience Security Design Ideally, financial services experience or investment banking If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk