Network Security Engineer in London

We are seeking an experienced and proactive Project focused Network Engineer to deliver a range of network and security focused projects across our clients' customer base. This role will suit someone with good exposure to Cisco and security products who is looking to hone in on a career as a Technical Security lead as further certification and training will be provided. This role is heavily centred on Cisco networking and security technologies, with a strong emphasis on Cisco Firepower, Cisco ISE, and broader Cisco security platforms. Experience with Fortinet (FortiGate) firewalls is highly desirable. The successful candidate will combine hands-on technical expertise with excellent communication and leadership skills, acting as a primary point of contact for stakeholders during project delivery. This is a UK based remote role, offering flexibility while still providing the opportunity to collaborate in person through periodic meetups and customer engagements.

Key Responsibilities

• Lead the technical delivery of network and security projects from design through implementation and handover.
• Act as the lead engineer on complex customer engagements, ensuring solutions are delivered on time and to a high standard.
• Provide technical guidance and mentorship to other engineers involved in project delivery.
• Collaborate closely with project managers, architects, and stakeholders to align technical outcomes with business objectives.
• Implement, and support enterprise grade network and security solutions.
• Deploy, configure, and troubleshoot Cisco Firepower firewalls, including policy configuration, VPNs, and threat protection.
• Implement and maintain Cisco Identity Services Engine (ISE) for network access control, authentication, and authorization.
• Work with Cisco Stealthwatch and other Cisco security tools to provide visibility, monitoring, and threat detection.
• Configure and support FortiGate firewalls where required, including firewall policies, VPNs, and security profiles.
• Produce high quality technical documentation, including designs, implementation guides, and handover documentation.
• Serve as a trusted technical advisor to customers, clearly explaining solutions and technical decisions.
• Gather technical requirements and translate them into robust, secure network designs.
• Participate in technical workshops, design reviews, and project update meetings.
• Support occasional onsite work at customer locations in the UK and Europe.

Required Skills & Experience

• Essential
• Strong experience in Cisco network and security environments.
• Proven hands-on expertise with: Cisco Firepower (FTD / FMC), Cisco ISE.
• Solid understanding of network security principles, firewalls, VPNs, routing, and switching.
• Experience working in a project based environment, leading or owning technical delivery.
• Excellent verbal and written communication skills.
• Ability to work independently in a remote setting while collaborating effectively with distributed teams.
• Full right to work in the UK and willingness to travel occasionally.
• Desirable
• Experience with Fortinet / FortiGate firewalls.
• Knowledge of Cisco Stealthwatch and related Cisco security products.
• Exposure to wider Cisco security technologies (e.g. Secure Firewall, Secure Network Analytics, Umbrella, etc.).
• Relevant industry certifications such as CCNP Security, CCNP Enterprise, or equivalent.

Benefits

• Competitive salary up to £50,000, depending on experience.
• Fully remote UK based role with flexible working.
• All business travel expenses covered from home location.
• Opportunity to work on diverse, technically challenging projects.
• Access to professional development, training, and certification support.
• Supportive and collaborative team environment.

Why Join Us?

This role offers the chance to take ownership of high impact network and security projects while maintaining a healthy work-life balance through remote working. You will work with leading technologies, have direct influence on technical decisions, and play a key role in shaping secure network solutions for customers across the UK and Europe.