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 standardsSkills & 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 planningPersonal 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 skillsWhy 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
Only candidates based in UK and eligible to work in UK are allowed