Senior Network Engineer

Senior Network Engineer Lewes, East Sussex Full-Time | Permanent £42,000 - £46,000 per annum 37 hours per week (Monday-Friday) The Opportunity We are looking for a Senior Network Engineer to join a well-established and dynamic internal IT team based in Lewes. Reporting to the Network Team Leader , you will play a key role in supporting and evolving a large-scale enterprise network estate.

This is a hands-on role, offering the opportunity to work across WAN, LAN, WLAN, and network security , while contributing to both operational support and project-based network improvements.

Key Responsibilities Maintain and support WAN, LAN, and Wireless LAN connectivity across multiple locations Deploy, configure, and support edge routers and security firewalls Contribute to the design and implementation of network solutions Monitor network health, performance, and overall environment stability Perform fault finding, troubleshooting, and root cause analysis Support development of network standards, configurations, and best practices Assist with hardware lifecycle planning and replacement strategies Produce and maintain clear technical documentation and procedures Work closely with vendors, suppliers, and internal stakeholders Provide on-site support and installations when required Ensure adherence to organisational policies and security standards Skills & Experience Required CCNA (or equivalent certification) - essential CCNP - highly desirable Proven experience supporting enterprise-scale network environments Strong background with:
Firewalls & VPNs (Cisco ASA, Checkpoint) Routing protocols & network design principles WAN technologies and monitoring Campus LAN and Wi-Fi networks QoS in WAN/LAN environments

Experience with SD-WAN (Arista preferred) Knowledge of Cisco wireless networks (Juniper exposure beneficial) Excellent network troubleshooting and diagnostic skills Experience using tools for traffic analysis, performance monitoring, and capacity planning Personal Attributes Strong problem-solving mindset with attention to detail Ability to work independently and take initiative Comfortable working in a fast-paced, collaborative team environment Quick learner with the ability to apply new knowledge effectively Excellent communication and stakeholder engagement skills Why Apply?

Join a forward-thinking organisation with a modernising network environment Be part of a skilled and collaborative network team Opportunities to work with emerging technologies including SD-WAN and next-gen wireless Competitive salary and stable, long-term career opportunity Great benefits included