* Role - Expert level Network & Security Engineer
* Location - City of London (will accept EU candidates if they are highly relevant)
* Duration - 12 months rolling
* Contract type - Inside IR35.
Responsibilities
* Own and troubleshoot network-related incidents from first alert to resolution.
* Provide excellent customer-facing support when liaising with users.
* Collaborate with team members and other internal teams.
* Manage vendor relationships for incident resolution.
* Maintain and, when necessary, create comprehensive network data diagrams and documentation.
* Conduct project activities according to specified timelines.
* Deliver network data project tasks and objectives assigned to the team.
* Support and maintain all NSS duties, including data, security, and infrastructure.
* Participate in shift rotations for after-office hours, on-call, and weekend work as required.
* Managing Cisco routing and switching environments
* Implementing and supporting network security measures
Required skills:
* Strong understanding of ISO layers, IP addressing, and subnetting.
* Proficiency in Layer 3 path control, IPv4 redistribution, EIGRP, OSPF, and BGP solutions.
* Experience with Layer 2 switching and VLANs, including high availability and multicast.
* Cisco NX-OS, IOS, ACI. ISE, Meraki
* Firewalls: Palo Alto, CheckPoint, Cisco ASA
* Tetration for workload protection and security analytics
* F5 BigIP load balancer management
* Maintaining and monitoring network performance
* Troubleshooting multi-protocol system networks
Personal Requirements
* Excellent communication and interpersonal skills.
* Strong problem-solving abilities with a results-driven mindset.
* Ability to handle pressure during outages and systematically resolve issues.
* Proactive and motivated with a structured and logical work approach.
* High attention to detail and accuracy.
* Effective at managing constructive conflict and large workloads under tight deadlines.
* Capable of simplifying complex technical concepts for non-technical audiences.