Network Security Administrator

Network Security Administrator

Posted 6 days ago by Infoplus Technologies UK Limited

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Negotiable
Inside
Onsite
Drayton, England, United Kingdom
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Border Gateway Protocol Check Point Certified Security Administrator (CCSA) R80 Cisco Meraki Computer Hardware Crisis Communications Crisis Management Domain Name System (DNS) Servers Dynamic Host Configuration Protocol (DHCP) Dynamic Multipoint Virtual Private Networks Enhanced Interior Gateway Routing Protocols Firewall Firmware ICAS Chartered Accountant (CA) Management Network Address Translation Network Monitoring Network Performance Network Protocols Network Security Network Security Administrator Open Shortest Path First (OSPF) Open Systems Interconnection Patch Management SSL Security Virtual Private Networks (VPN) Wide Area Networks Wireless LAN

Summary: The Network Security Administrator role involves managing and troubleshooting network and security systems in a 100% onsite capacity in Drayton, UK. The position requires a strong understanding of networking principles and the ability to resolve complex issues across various networking disciplines. The role also emphasizes vendor coordination and proactive analysis to maintain network performance and security. This is a 6-month contract position classified as inside IR35.

Key Responsibilities:

  • Strong working knowledge of OSI layers 1-7 for troubleshooting complex networking problems.
  • Monitor network performance and identify hardware and software malfunctions.
  • Triage and troubleshoot issues within defined areas, coordinating with vendors and IT teams.
  • Develop strong relationships with customers and supporting departments.
  • Support Cisco WLAN Controllers, SSID, and Access Points.
  • Implement and troubleshoot Firewalls Security, VPNs, NAT policy, and Software Patch management.
  • Configure and troubleshoot routing & switching protocols like OSPF, BGP, EIGRP, VLANs, STPs, VRF, MC-LAG, FHRP, DMVPN, NAT Policy.
  • Understand LAN, WAN, and SDWAN concepts with experience in enterprise routers and switches.
  • Implement and troubleshoot Internal and External DNS, IPAM, DHCP.
  • Implement and troubleshoot F5 LTM administration, SSL Certificate renewal, iRules creation, Software Upgrade & Patching.
  • Review and analyze data from Network Monitoring Tools for proactive crisis management.
  • Test and implement software patches & firmware for network & security devices.
  • Coordinate with vendors and manage major/high severity incidents.

Key Skills:

  • Routing & Switching (Cisco/Juniper)
  • WIFI- DC
  • DC-Core Network Protocol BGP/OSPF concepts
  • Checkpoint Firewall – Network Security & VPN concepts
  • Cisco Wireless & SD WAN concepts
  • F5 LTM
  • DNS/DHCP, IPAM
  • CCNP, CCSA, F5 Certificate
  • Cisco Meraki (Good to Have)
  • AWS Networking (Good to Have)
  • Cisco ISE & Security (Good to Have)
  • NMS: BIG IQ, SolarWinds, CA Spectrum, Thousand eyes, NetBrain, Firewall Monitoring Tools (Checkpoint) (Good to Have)

Salary (Rate): undetermined

City: Drayton

Country: United Kingdom

Working Arrangements: on-site

IR35 Status: inside IR35

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

Job title: Network and security Admin

Work mode: 100% Onsite

Location: Harmondsworth, Drayton, UK

Duration: 6 months contract

InsideIR35

Key responsibilities:

  • Candidates should have a strong working knowledge of OSI layers 1-7, with the ability to apply analytical and troubleshooting skill sets to solve complex problems across all networking disciplines
  • Monitor the performance and capability of the network using diversified tools. Identify the malfunctioning of hardware, software, and alerts events.
  • Triage or troubleshoot the issues & incident, within the defined areas. Follow Standard Operating Manuals and coordinate with third party vendors, customer contacts, or other IT teams to implement solutions and resolution.
  • Develop strong relationships with the customer and all other supporting departments.
  • Experience on supporting the Cisco WLAN Controllers, SSID and Access Points
  • Experience on Implementing and troubleshooting Firewalls Security, VPN’s, NAT policy, Software Patch management
  • Configuring and troubleshooting routing & switching protocols: Set up and troubleshoot protocols like OSPF, BGP, EIGRP, VLANs, STPs, VRF, MC-LAG, FHRP,DMVPN, NAT Policy.
  • Solid understanding of LAN, WAN and SDWAN concepts (including wireless LAN) with experience in supporting enterprise class routers, switches in a global and enterprise network environment.
  • Experience on Implementing and troubleshooting Internal and External DNS, IPAM, DHCP for IP management.
  • Experience on Implementing and troubleshooting F5 LTM administration, SSL Certificate renewal, iRules creation, Software Upgrade & Patching
  • Proactive Analysis: Review and analyze the DATA from Network Monitoring Tools to identify the best course of action to avert potential crises.
  • Test & Implement software patches & firmware for the network & security devices
  • Vendor or Supplier coordination, Problem-solving skills and ability to meet reasonable deadlines.
  • Major / High Severity Incidents management & Problem, Vendor Management

Key skills/knowledge/experience:

Must Have

  • Routing & Switching (Cisco/Juniper & Juniper – OEMs)
  • WIFI- DC
  • DC-Core Network Protocol BGP/OSPF concepts
  • Checkpoint Firewall – Network Security & VPN concepts
  • Cisco Wireless & SD WAN concepts
  • F5 LTM
  • DNS/DHCP, IPAM
  • CCNP, CCSA, F5 Certificate

Good to Have

  • Cisco Meraki
  • AWS Networking,
  • Cisco ISE & Security
  • NMS: BIG IQ, SolarWinds, CA Spectrum, Thousand eyes, NetBrain, Firewall Monitoring Tools (Checkpoint)
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