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Posted 25 July, 2026

Network Engineer

The Citco Group Limited
Cork, Cork, Ireland Full Time
Reference: 1924483199

Job Description

Network Engineer

Join a global leader in financial services administration and help architect the infrastructure powering $3 trillion in assets under administration. In this role, you'll drive innovation across Citco's network infrastructure while collaborating with a talented team of 15,000+ professionals across 50+ office locations worldwide.

You'll be joining a dynamic and collaborative Network team of 15 talented professionals - comprising an 11-strong Network Support team, led by your direct manager, working closely alongside a dedicated team of 4 Network Engineers managed separately. Together, both teams form a close-knit, high-performing unit that drives Citco's global network operations.

You'll have the opportunity to:
  • Design and optimize network solutions supporting five strategically positioned datacenters
  • Work with leading cloud platforms including AWS, Azure, and GCP to modernize our infrastructure
  • Shape the future of Citco's technology landscape and directly impact our global operations
  • Develop your expertise within a majority independently-owned organization that prioritizes agility, leadership, and client-focused innovation
  • Thrive within a collaborative environment where both teams work in close partnership, fostering knowledge sharing and continuous improvement

  • Technical Requirements

  • Must haves: Strong knowledge and experience in the following areas and technologies:
    • TCP/IP protocols (TCP, UDP, FTP, GRE, IPsec, etc.)
    • OSPF multi-area.
    • BGP v4 (iBGP and eBGP).
    • Cisco routers, branch office to datacenter grade
    • Meraki and Catalyst switches
    • Cisco Nexus switches
    • Vmware Velocloud SDWAN.
    • IPsec site-to-site VPNs, and remote access VPNs using Ivanti and Palo Alto Global Protect.
    • Firewalling, access lists, protocol inspection.
    • Palo Alto firewalls and their administration using Panorama.
    • LAN switching, Spanning Tree protocol, VLANs, dot1Q trunking, LACP port-channels, vPC, VSS.
    • QOS on the LAN and WAN.
    • Load balancing traffic across server farms, load balancing algorithms, health probes.
    • F5 load balancers (F5 Big IP) or other load-balancer platforms.
    • Wide area network circuits and services (MetroE, MPLS, etc.)
    • Clear understanding and proven experience on implementing network hardware redundancy.
  • Desired Technical Skills:
    • Solarwinds experience
    • Dynamic routing interaction with ISPs using BGP.
    • Clear understanding of how network monitoring using ICMP and SNMP.
    • Operational experience with TACACS+/Radius authentication systems (Cisco ISE).
    • Experience with Netflow analysis and using Netflow collectors.
    • Basic user level knowledge of Linux operating systems.
    • Basic knowledge of cloud computing and cloud networking

  1. Education, Qualifications & Experience

  • College or university degree (preferably) in an Information Technology field.
  • Knowledge of the company and Network Operations experience in the financial sector

  1. Key Competencies Required

  • Fluent in English (written and spoken);
  • Sound judgment, problem solving and analytical skills;
  • Ability to multitask;
  • Result oriented approach to work;
  • Ability to analyse, consolidate and present information;
  • High level of accuracy and attention to details;
  • Effective organizational skills;
  • Strong written and verbal communication skills;
  • Communication and presentation skills;
  • Coaching and developing others;

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