Senior Network Engineer Salary: £75,000 Location: Oxford (Hybrid) We are recruiting on behalf of a well-established, global organisation with a complex enterprise network environment and an ongoing programme of infrastructure investment. This is a permanent, in-house role offering real ownership across a large, multi-site estate. The position suits a senior, hands-on network engineer who enjoys autonomy, working across varied technologies, and contributing to meaningful transformation projects rather than operating in a narrow or siloed role. The Role You will be responsible for the delivery, optimisation, and ongoing support of a global enterprise network, working closely with internal stakeholders and technical teams. Key responsibilities include: * Supporting and improving enterprise LAN, WAN, campus, and data centre networks * Contributing to a major firewall refresh project * Working across multiple international sites and data centres * Taking ownership of network delivery and continuous improvement * Supporting cloud connectivity and modern network services * Assisting with vendor evaluation and technology selection Technical Environment * Cisco (routing, switching, campus, firewalls) * Arista (including data centre networking) * Infoblox * Meraki (wireless) * WAN connectivity and global networking * Cloud networking expos...