Network Security Administrator
Cardiff, Wales
11d ago


The Network Security team is responsible for ensuring the confidentiality, availability and integrity of our customers’ critical infrastructure whilst providing industry leading Fanatical Support to both the customers and other segments of the business.

The Network Security Engineer will be responsible for the EMEA customer base comprising in excess of 4000 customers employing a mixture of firewalled and load balanced solutions, some incorporating DR and HA solutions.

The level 2 engineer will serve as an escalation point for level 1 engineers and is accountable for implementation, troubleshooting and configuration of all solutions and will be heavily focused on troubleshooting customer specific network security issues.

The level 2 engineer will be required to be customer facing and able to troubleshoot various issues with third party vendors and suppliers.

Key Accountabilities Net device provisioning IP management for each solution

  • Implementation and configuration and some basic troubleshooting of;
  • DNS (A records, CNAMES, MX records, Authority Section, TTL values.)- Cisco firewall (ASA / PIX)-Juniper Firewalls- Cisco IDS / IPS-
  • Application firewalls (layer 7) - Load balancers (F5, Brocade ADX)-IP routing and switching-SNMP and monitoring platforms

    Qualifications : Perform ticket queue monitoring, and prioritization. IP address assignment and management Provide world-

    class Fanatical support Build relationships with colleagues and customers via the ticket system, telephone and face-to-face Candidate must have the ability and desire to work within a Team Driven environment and be responsible enough to work with minimal supervision.

  • Responsible for adhering to company security policies and procedures
  • Strong awareness of subnetting and CIDR Good knowledge of DNS (A records, CNAMES, MX records, Authority Section, TTL values.

    Switching (Vlans, STP, trunking etc) and general networking Needs good understanding of IP routing, TCP / IP ports and services, different levels of the OSI model and exposure to operating systems (Windows server and Linux) Will also benefit from basic knowledge of firewalls (Pix / ASA), VPN, access lists and loadbalancing (CSS, F5, webmux) Can work in a mixed environment using GUI and command line operating systems

    CCNA Security beneficial

  • Current active Security Clearance or willingness to undergo Security Clearance VettingAvailability to work shiftsPartake in on-
  • call roster no more than 1 week in every 4


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