Network Engineer

The Citco Group Limited; Cork; On-site; EUR 70,000 - 95,000; Full time

Job summary

The Citco Group Limited is hiring a Network Engineer to help design and optimize global network infrastructure across five strategically placed datacenters. You will work with top cloud platforms including AWS, Azure, and GCP to modernize Citco's infrastructure and support its $3 trillion in assets under administration.

You will join a dynamic team of 15 network professionals, collaborating with the enterprise network group to ensure resilient, secure connectivity and continuous improvement

Qualifications

• Must have deep and demonstrable experience with enterprise network design and operations.
• Strong understanding of TCP/IP, routing protocols, and IPsec VPNs.
• Hands-on experience with data center and SD-WAN technologies.
• Experience across multi-vendor gear and cloud networking platforms.
• Fluent English, with excellent written and verbal communication.

Responsibilities

• Design and optimize network solutions across five datacenters.
• Collaborate with teams to modernize infrastructure on AWS, Azure, and GCP.
• Influence Citco's technology landscape and global operations.
• Develop expertise in a largely independent, agility-focused organization.
• Foster knowledge sharing and continuous improvement within collaborative teams.

Skills

TCP/IP

OSPF

BGP

WAN/LAN

Firewalling

VPNs

Load balancing

Monitoring

Linux basics

Cloud networking

English communication

Education

College degree in IT/related field

Tools

Cisco routers

Meraki/Catalyst/Nexus switches

VMware Velocloud SDWAN

Ivanti & Palo Alto Global Protect

Palo Alto Panorama

F5 Big IP or similar

Netflow/SolarWinds monitoring

ICMP/SNMP monitoring

TACACS+/Radius (Cisco ISE)

Job description

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


• 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


• 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;