Senior Network Engineer — Opportunihub
Job

Senior Network Engineer

Exegy · Belfast

At a glance

Type
Job
Organisation
Exegy
Location
Belfast
Work mode
On-site
Deadline
Rolling / not stated
Posted
17 Aug 2026

About this job

<p style="min-height:1.5em"><strong>About Exegy</strong></p><p style="min-height:1.5em">Exegy is a global leader in intelligent market data, advanced trading systems, and future-proof technology. Exegy serves as a trusted partner to the complete ecosystem of the buy-side, sell-side, exchanges, and financial services technology firms around the globe. Headquartered in St. Louis with regional offices in North America, the UK/Europe and Asia Pacific, Exegy has the global footprint to deliver world-class support and managed services to its customer base of elite financial market participants.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em"><strong>Job Summary</strong></p><p style="min-height:1.5em">The Senior Network Engineer will play a crucial role in supporting Exegy’s network infrastructure. This role involves network administration, device maintenance, and collaboration with vendors to ensure the smooth operation of network services. The ideal candidate should possess a strong technical background, extensive experience with network equipment and services, and the ability to work effectively in a fast-paced environment while contributing to project planning and execution.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em"><strong>Responsibilities</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Provide day-to-day support &amp; assistance to Exegy Network Engineering team on network issues across business critical Exegy Production, Corporate and Development networks</p></li><li><p style="min-height:1.5em">Perform day-to-day network administration and maintain all network and security devices and systems to allow Exegy Network Engineering team to concentrate on design and execution of network management handover for SuperFeed, DMA and Metro products to relevant vendors</p></li><li><p style="min-height:1.5em">Work with vendors providing network support to troubleshoot and resolve issues or roll out changes to hosted production environments</p></li><li><p style="min-height:1.5em">Work with Exegy Network Engineers to plan and implement network changes to support business decisions</p><p style="min-height:1.5em"></p></li></ul><p style="min-height:1.5em"><strong>Our Ideal Candidate Has:</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Solid technical background with 5+ years’ experience in a hosted services environment including infrastructure networks, hardware and telecommunications</p></li><li><p style="min-height:1.5em">Degree in Computer Science, Software or Electronic Engineering or other related discipline</p></li><li><p style="min-height:1.5em">Strong experience in installing, configuring and maintaining network services, equipment and devices</p></li><li><p style="min-height:1.5em">Proven experience with Juniper, Cisco, Arista switching</p></li><li><p style="min-height:1.5em">Experience with Mellanox Infiband switches a plus</p></li><li><p style="min-height:1.5em">Multicast experience desired</p></li><li><p style="min-height:1.5em">Experience with RoCE a plus</p></li><li><p style="min-height:1.5em">Experience with routing protocols including but not limited to BGP / OSPF</p></li><li><p style="min-height:1.5em">Good understanding of subnetting, VLANs, VLAN tagging, NAT</p></li><li><p style="min-height:1.5em">Strong experience configuring IPSec VPNs, GRE tunnelling</p></li><li><p style="min-height:1.5em">Demonstrate good network security practices</p></li><li><p style="min-height:1.5em">Ability to collaborate with stakeholders across a wide variety of teams in a fast-paced environment</p></li><li><p style="min-height:1.5em">Ability to gather relevant information systematically to troubleshoot and resolve issues</p></li><li><p style="min-height:1.5em">Capable of working effectively and efficiently in a team environment</p></li><li><p style="min-height:1.5em">Contribute to technical aspects of project delivery, planning and risk management</p></li><li><p style="min-height:1.5em">Effective communication, interpersonal and organizational skills</p></li><li><p style="min-height:1.5em">Datacenter experience including racking and patching of devices</p></li><li><p style="min-height:1.5em">Knowledge and experience configuring and maintaining Fortinet, Checkpoint, Juniper SRX, and Cisco ASA firewalls</p></li></ul><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div><p>Find <a href="https://www.arbeitnow.co.uk">Jobs in United Kingdom</a> on Arbeitnow</a>

How to apply

  1. 1 Read the full details above and confirm you meet the eligibility criteria.
  2. 2 Prepare your documents — an updated CV, and any cover letter, proposal or certificates required.
  3. 3 Click Apply on official site to complete your application on Exegy’s official page.
  4. 4 Submit as early as possible — many close once filled.
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Frequently asked questions

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Review the full details and eligibility on this page, prepare your documents, then use the “Apply on official site” button to complete your application on Exegy’s official page.

Is this opportunity remote or location-based?

This opportunity is based in Belfast. Check the official listing for any relocation or on-site requirements.

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