Senior Network Engineer

Senior Network Engineer

Lewes, East Sussex
Full-Time Permanent
42,000 - 46,000 per annum
37 hours per week (Monday-Friday)

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.

• 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

• 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

• 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

• 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