Senior Network Engineer - LAN/WAN, Data Center, Hybrid

Colonial Group; Greater London; Hybrid; GBP 55,000 - 85,000; Full time

Job summary

CACI Network Services is seeking a motivated Network Engineer to design, implement and support LAN, WAN and data centre networks across London and the Home Counties. You will help ensure highly available, scalable network architectures and contribute to technical standards.

Join a growing team delivering challenging environments for major clients in the public and private sectors. We value collaboration, clear communication and a proactive approach to problem solving.

Qualifications

• Solid understanding of TCP/IP and routing protocols (e.g. OSPF, BGP).
• Experience designing, building and supporting LAN/WAN networks.
• Strong knowledge of Routing & Switching (CCNA or CCNP level).
• Experience with WAN technologies (e.g. MPLS, VPNs).
• Exposure to firewall technologies (Check Point, Palo Alto, Fortinet or Cisco).
• Knowledge of Application Delivery Controllers (e.g. F5, Citrix).
• Experience producing network design documentation (HLD/LLD).
• Strong communication and stakeholder engagement skills.

Responsibilities

• Design, implement and support LAN, WAN and Data Centre networks
• Assist in maintaining highly available and scalable network architectures
• Produce and maintain network design documentation (HLD/LLD)
• Support and troubleshoot network and infrastructure issues
• Work closely with internal teams and clients on project delivery

Skills

TCP/IP basics

LAN/WAN design

Routing & Switching

MPLS/VPNs

Firewall technologies

ADC (F5/Citrix)

Design documentation

Stakeholder comms

Job description

CACI Network Services is seeking a motivated Network Engineer to design, implement and support LAN, WAN and data centre networks across London and the Home Counties. You will help ensure highly available, scalable network architectures and contribute to technical standards.

Join a growing team delivering challenging environments for major clients in the public and private sectors. We value collaboration, clear communication and a proactive approach to problem solving.