Network Security Engineer – Firewalls, VPNs & WAFs

Levrara Consulting Group; Greater London; On-site; GBP 70,000 - 100,000; Full time

Job summary

Levrara Consulting Group seeks an experienced Cyber Security Network Engineer to design, implement and manage secure network infrastructure in London within a highly regulated financial services context.

You will work hands-on with enterprise firewalls, WAFs and VPNs, ensuring secure segmentation and robust threat prevention across critical networks and systems.

Qualifications

• 5+ years in Network Engineering with a cyber security focus.
• Strong hands-on experience managing enterprise firewalls.
• Experience with Cisco Firepower / FTD or comparable NGFWs.
• Good understanding of TCP/IP, BGP, OSPF and EIGRP.
• Hands-on VPN/IPsec and secure remote access technologies.

Responsibilities

• Design, implement and maintain secure network and security infrastructure.
• Configure, manage and optimise enterprise firewall technologies and security policies.
• Manage firewall rule sets, access controls, NAT policies and security changes.
• Support Web Application Firewall (WAF) technologies and application security controls.
• Configure and support remote access VPNs and IPsec tunnels.
• Design and implement secure network segmentation and security zones.
• Monitor network security events and support investigation of potential security incidents.
• Produce and maintain technical documentation, network diagrams and security procedures.

Skills

Network Engineering

Cyber Security

Firewall Mgmt

VPN/IPsec

WAF

Cisco Firepower

BGP/OSPF/EIGRP

SIEM

IDS/IPS

Network Segmentation

Tools

F5 Advanced WAF

Citrix NetScaler

IPsec VPN

Job description

We are supporting an International Banking client with their search for a Cyber Security Network Engineer to join a highly regulated financial services organisation in London.

This is a hands-on technical role responsible for the design, implementation and ongoing management of secure network infrastructure. The successful candidate will have a strong network engineering background combined with practical cyber security experience, with particular exposure to firewalls, WAFs, VPNs and network security controls.

Key Responsibilities

• Design, implement and maintain secure network and security infrastructure
• Configure, manage and optimise enterprise firewall technologies and security policies
• Manage firewall rule sets, access controls, NAT policies and security changes
• Support Web Application Firewall (WAF) technologies and application security controls
• Configure and support remote access VPNs and IPsec tunnels
• Design and implement secure network segmentation and security zones
• Monitor network security events and support investigation of potential security incidents
• Support vulnerability management, remediation and security hardening activities
• Assess network security risks and recommend appropriate technical controls
• Plan and implement network security changes, including testing and rollback procedures
• Work closely with IT, infrastructure and security teams on technical projects and security improvements
• Produce and maintain technical documentation, network diagrams and security procedures

Experience Required

• 5+ years' experience within Network Engineering, with a strong focus on Cyber Security
• Strong hands-on experience managing enterprise firewalls
• Experience with Cisco Firepower / FTD or comparable next-generation firewall technologies
• Good understanding of TCP/IP, BGP, OSPF and EIGRP
• Hands-on experience with VPNs, IPsec and secure remote access technologies
• Experience with network segmentation and secure network design
• Exposure to WAF technologies, ideally F5 Advanced WAF / ASM
• Experience with load balancing or application delivery technologies such as F5 or Citrix NetScaler
• Understanding of vulnerability management and security remediation
• Exposure to SIEM and network security monitoring technologies
• Strong understanding of IDS/IPS and network threat prevention controls
• Experience working within a regulated or complex enterprise environment would be advantageous

About You

You will be a hands-on Network Security Engineer who is comfortable working directly with network and security technologies. You should be able to analyse technical issues, design appropriate solutions and take responsibility for implementing security changes within a complex enterprise environment.

This role would suit an experienced Network Security Engineer, Network & Security Engineer or Security Infrastructure Engineer looking to take ownership of network security within a highly regulated organisation.