Network Security Engineer

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.

Responsibilities

• 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, cybersecurity teams and third‑party vendors to optimise systems and enforce security policies.

Qualifications

• 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 managing 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 and ability to collaborate across IT teams, management and vendors.
• Certifications: Cisco CCNA or CCNP, CompTIA Network+, AZ‑700 or AZ‑500.
• Experience with network security platforms such as Cisco, Palo Alto, Juniper or Fortinet.
• Willing to undergo background checks.
• Authorised to work in the United Kingdom.
• Able to commute to Dartford twice per month (back‑to‑back possible).

Benefits

• 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.

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