Lead Network Engineer

In this Lead Network Engineer role, you shape OS’s enterprise network across data centres, cloud, and remote sites. You provide technical authority, drive secure, resilient and scalable networking, and lead a team to deliver complex solutions. You’ll partner with cybersecurity, infrastructure and applications teams to set the technology roadmap and improve reliability. The role blends hands-on expertise with strategic leadership in a mission-critical, hybrid environment.

• Competitive salary and pension
• Performance-related bonus
• 23–28 days annual leave (plus holidays)
• Hybrid and flexible working options
• Learning and development support
• OS Maps subscription and wellbeing support

• Lead architecture, design and delivery of enterprise network solutions across data centres, cloud environments and remote sites
• Act as the technical authority for networking and oversee performance, capacity and operational health
• Lead, coach and develop network engineers and technicians and foster a collaborative, inclusive culture
• Collaborate with cybersecurity, infrastructure, development and applications teams to shape the network roadmap and priorities
• Drive automation and continuous improvement to increase reliability and efficiency
• Support incident response and root-cause analysis for complex network issues
• Identify capability gaps and support development and succession planning
• Develop standards, documentation and best practice for networking
• Evaluate emerging networking technologies and liaise with technology partners and vendors
• Contribute to strategic planning, investment, budgeting and network risk management
• Define and maintain the network technology roadmap

• Extensive experience with enterprise network infrastructure and leading large-scale initiatives
• Expert knowledge of BGP, VLANs and VPNs
• Hands-on expertise across routing, switching, wireless, firewalls and cloud networking
• Strong understanding of modern network security principles including segmentation and zero-trust
• Experience with network monitoring, automation and scripting
• Strong troubleshooting and problem-solving for complex network issues
• Excellent leadership, communication and stakeholder management
• Ability to balance operational priorities with longer-term strategy
• Experience leading, coaching and developing engineers
• Industry-recognised networking certification such as Cisco CCNP/CCIE or equivalent
• Valuable experience: Cisco switching/routing, Cisco ISE, Cisco Meraki, Check Point, F5 BIG-IP, Microsoft Azure networking

• Leadership
• Communication
• Stakeholder management
• Cisco switching and routing
• Cisco ISE
• Cisco Meraki