Network Engineer

Network Engineer

Company: Charles Russell Speechlys

Location: London, United Kingdom

Salary: £70,000–£78,000 per annum

Reporting directly to the Infrastructure Platforms Manager, the Network Engineer will maintain the existing LAN/WAN infrastructure and work on projects to support our LAN/WAN and Office Moves and Changes.

• Design, implement, and manage complex network infrastructure using Cisco Campus Networking 9300 series and Cisco Nexus switches.
• Configure, deploy, and maintain Palo Alto Prisma Access firewall policies to secure access to critical applications and data.
• Administer and configure Forti Gate Firewalls for advanced security measures and threat management.
• Monitor network performance, identify issues, and perform necessary troubleshooting to maintain optimal network health.
• Develop and enforce network security policies, procedures, and standards to protect organisational assets.
• Collaborate with IT and security teams to assess and mitigate security risks and vulnerabilities.
• Provide advanced technical support.
• Escalate issues / manage changes with necessary 3rd party managed service providers.
• Stay current with industry trends and emerging technologies to ensure the network infrastructure remains robust and up-to-date.
• Comply with all relevant legal and regulatory obligations including the Solicitors Regulation Authority (SRA) Standards and Regulations, and Principles.

• In-depth knowledge of core network fundamentals including Layer 2/3 technologies, routing protocols such as BGP and OSPF and network troubleshooting.
• Proven experience with Cisco’s range of products including Catalyst and Nexus switches.
• Working knowledge of Palo Alto firewalls, Prisma Access and SD‑WAN in general.
• Relevant Azure and Cisco qualifications.
• 5+ years of experience.
• HLD / LLD documentation skills.
• ITIL.
• Knowledge of the Microsoft Azure cloud stack.

• Proven experience in supporting network security functions primarily focusing on Cisco ISE.
• Strong understanding of network security protocols and ability to configure and optimise ISE policies for authentication, authorisation, and accounting (AAA).
• Monitor and troubleshoot ISE-related issues to ensure optimal performance and security.
• Collaborate with network and security teams to integrate ISE with existing infrastructure.
• Develop and maintain documentation related to ISE configurations, policies, and procedures.
• Strong understanding of network security protocols, including RADIUS, TACACS+, and 802.1X.

• Strong understanding of wireless protocols, Cisco Wireless LAN configurations, and security principles.
• Maintaining, troubleshooting, and supporting Wireless LAN Controllers and associated Wi‑Fi networks.

• Proven experience as a network engineer or support engineer with a focus on Fortinet products.
• Provide technical support and troubleshooting for Fortinet products, including Forti Gate, Forti Analyzer, Forti Manager, and other related solutions.
• Assist with the configuration, deployment, and maintenance of Fortinet and Cisco devices.
• Fortinet certifications such as NSE 4, NSE 5, or higher are highly desirable.

• A logical approach to problem‑solving and demonstrating analytical capabilities.
• The ability to work well under pressure.
• An enthusiastic approach to work and self‑learning.
• Attention to detail and a focus on process.
• Good communication skills, including the ability to convey information concisely to those who may have no background in technology.
• Self‑starter.

We adopt a hybrid and flexible working approach, dependent on the requirements of the role and subject to manager approval.

Mid‑Senior level

Full‑time

Information Technology

Law Practice