Job Description
Senior Network Engineer
Lewes, East SussexFull-Time | Permanent£42,000 – £46,000 per annum37 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:
o Firewalls & VPNs (Cisco ASA, Checkpoint)
o Routing protocols & network design principles
o WAN technologies and monitoring
o Campus LAN and Wi-Fi networks
o 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