Senior Network Engineer

Salary: £42,000 – 46,000 per year

Requirements

• We require CCNA or an equivalent certification.
• CCNP is highly desirable.
• We need proven experience supporting enterprise-scale network environments.
• We require a strong background in firewalls and VPNs, including Cisco ASA and Check Point.
• We need experience with routing protocols and network design principles.
• We require experience with WAN technologies and monitoring.
• We need experience with campus LAN and Wi‑Fi networks.
• We require knowledge of QoS in WAN and LAN environments.
• Experience with SD‑WAN is required, with Arista preferred.
• Knowledge of Cisco wireless networks is required; Juniper exposure is beneficial.
• We need excellent network troubleshooting and diagnostic skills.
• Experience using tools for traffic analysis, performance monitoring, and capacity planning is required.
• We need strong problem‑solving skills and attention to detail.
• We require the ability to work independently and take initiative.
• We need someone comfortable working in a fast‑paced, collaborative team environment.
• We require a quick learner who can apply new knowledge effectively.
• Excellent communication and stakeholder engagement skills are required.

Responsibilities

• We maintain and support WAN, LAN, and wireless LAN connectivity across multiple locations.
• We deploy, configure, and support edge routers and security firewalls.
• We contribute to the design and implementation of network solutions.
• We monitor network health, performance, and overall environment stability.
• We perform fault finding, troubleshooting, and root cause analysis.
• We support the development of network standards, configurations, and best practices.
• We assist with hardware lifecycle planning and replacement strategies.
• We produce and maintain clear technical documentation and procedures.
• We work closely with vendors, suppliers, and internal stakeholders.
• We provide on-site support and installations when required.
• We ensure adherence to organisational policies and security standards.

Technologies

• Cisco
• Hardware
• Support
• LAN
• Network
• Security
• WLAN

More

We are a well-established and dynamic organisation based in Lewes, East Sussex, offering a full-time, permanent Senior Network Engineer opportunity within our internal IT team. This hands‑on role reports to the Network Team Leader and gives you the chance to support and evolve a large‑scale enterprise network estate across WAN, LAN, WLAN, and network security. We offer a competitive salary of £42,000 to £46,000 per annum for a 37‑hour working week, along with great benefits, a stable long‑term career opportunity, and the chance to join a skilled and collaborative team working with emerging technologies such as SD‑WAN and next‑generation wireless.

last updated 25 week of 2026

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