Senior Network Engineer

The Senior Network Engineer will provide hands-on technical expertise across our client’s network infrastructure estate, supporting the operation, maintenance and enhancement of critical network, firewall, load balancing and connectivity services.

The Senior Network Engineer is a technical delivery role suited to an experienced engineer who enjoys working collaboratively to support and improve critical infrastructure services.

Tasks

• Work closely with Network, Security, Compute and Platform Engineering teams, supporting operational service delivery, project implementation, major incident resolution and technology lifecycle activities.
• Help drive Infrastructure as Code (IaC), automation and automated testing capabilities to improve service reliability, resilience and operational efficiency.
• Support the day-to-day operation of network infrastructure and associated services including maintaining and enhancing Cisco switching, routing, firewall and load balancing platforms.
• Investigate and resolve complex incidents, problems and service requests in collaboration with colleagues, suppliers and technology partners and contribute to root cause analysis and continuous service improvement activities.
• Support infrastructure projects, maintenance activities and technology refresh programmes and participate in major incident and service recovery activities.
• Build effective working relationships across Technology teams, suppliers and service partners., providing clear and effective communication during incidents, changes and service reviews.
• Deliver a high standard of customer service and stakeholder engagement.

• Strong experience in network engineering, with the ability to support and improve business-critical network services.
• Current holds active SC clearance or is SC clearance eligible
• Cisco CCNP certification or equivalent practical industry experience.
• Experience supporting Cisco Nexus switching, Cisco UCS platforms, enterprise firewall technologies, ideally including Check Point VSX environments.
• Strong understanding of routing, switching, network security and infrastructure operations.
• Experience developing automated testing and validation solutions for infrastructure changes alongside dedicated testing or quality assurance teams to implement automated testing capabilities.
• Experience using automation technologies such as Python, Ansible, Terraform or equivalent tools.
• Understanding of Infrastructure as Code (IaC) principles and modern infrastructure management practices.
• Experience working within operational environments where service availability and stability are critical.