Network Security Engineer

Network Security Engineer – Dartford, England, United Kingdom | Remote – 2 days per month in office | Full-time

About the role

An ambitious and growing organisation is seeking a Network Security Engineer to join its technology team and make a real impact in cybersecurity. This role is ideal for a driven, detail‑oriented professional with a passion for protecting digital environments. If you thrive in fast‑paced environments, maintain a positive attitude, and can manage multiple priorities effectively, this could be the perfect opportunity.

What you will be doing as Network Security Engineer

• Deploy, maintain, and optimise network and security platforms including routers, switches, firewalls, IDS/IPS, and cloud technologies.
• Manage Cisco‑based network security solutions (firewalls, VPNs, NAC) to ensure reliability and performance.
• Monitor network traffic to maintain efficiency and troubleshoot issues.
• Implement secure remote access and VPN solutions.
• Lead PKI management, including certificate issuance and revocation.
• Recommend and deploy network and security improvements.
• Develop technical specifications, rollout plans, and provide BAU support.
• Collaborate with IT and cybersecurity teams, as well as third‑party vendors, to optimise systems and ensure security policies are implemented and maintained.

Our Ideal Network Security Engineer

• Proven experience deploying, administering, and maintaining network infrastructure, including routers, switches, wireless solutions, and firewalls.
• Strong familiarity with IDS/IPS technologies to protect networks from threats.
• Ability to manage security protocols, ensuring encryption and access control across networks.
• Experience monitoring network traffic to optimise performance and reduce bottlenecks.
• Skilled in managing network security for cloud‑based applications and platforms.
• Hands‑on experience implementing and administering remote access and VPN solutions.
• High level of accuracy and attention to detail when configuring and managing security systems.
• Strong analytical and troubleshooting skills to identify and resolve network issues quickly.
• Ability to adapt in fast‑evolving environments and stay up‑to‑date with emerging network security trends.
• Strong communication skills, with the ability to collaborate across IT teams, management, and vendors.

Desirable qualifications

• Cisco certifications such as CCNA or CCNP
• CompTIA Network+
• AZ‑700 or AZ‑500
• Experience with network security platforms such as Cisco, Palo Alto, Juniper, or Fortinet

What’s on offer

• Competitive salary package up to £55,000 depending on experience
• Hybrid working with 2 days onsite per month in WF6 1TN
• Free onsite car parking and canteen facilities
• 25 days annual leave
• Enhanced maternity, paternity, and adoption pay
• Access to an employee wellbeing programme
• Refer‑a‑friend bonus scheme
• Supportive working culture with strong work‑life balance
• Recognition programmes including charity initiatives and long‑service awards

Applicants must be

• Able to commute to Dartford 2x per month (can be back to back)
• Willing to undergo background checks
• Authorised to work in the United Kingdom

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