IT & Software

Senior Network Engineer

Exegy

Belfast · County Antrim · United Kingdom

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Overview

As Senior Network Engineer you will uphold Exegy's network infrastructure, handling administration, device upkeep, and vendor collaboration to keep services running smoothly. You will operate in a fast-paced setting, supporting production, corporate, and development networks while contributing to planning and execution of network initiatives. You will work closely with cross-functional teams and external partners to enable product delivery and reliability. This role blends hands-on engineering with project planning to sustain and scale Exegy's network services.

Responsibilities
  • Provide day-to-day support to the Network Engineering team across production, corporate and development networks
  • Perform network administration and maintain devices and systems to enable design and handover for products to vendors
  • Collaborate with vendors to troubleshoot, resolve issues, and rollout changes to hosted production environments
  • Plan and implement network changes to support business decisions
Key requirements
  • 5+ years in a hosted services environment with infrastructure networks, hardware and telecoms
  • Degree in Computer Science, Software or Electronic Engineering or related discipline
  • Strong experience installing, configuring, and maintaining network services and devices
  • Experience with Juniper, Cisco, Arista switching
  • Mellanox InfiniBand experience is a plus
  • Multicast experience desired
  • RoCE experience is a plus
  • Experience with routing protocols (BGP/OSPF)
  • Subnetting, VLANs, VLAN tagging, NAT
  • IPSec VPNs and GRE tunneling
  • Knowledge of network security practices
  • Ability to collaborate with stakeholders across teams in a fast-paced environment
  • Systematic information gathering for troubleshooting
  • Datacenter experience including racking and patching devices
  • Experience configuring Fortinet, Check Point, Juniper SRX, and Cisco ASA firewalls
  • Effective communication
  • Interpersonal and organizational skills
  • Collaboration across teams
  • Juniper switching
  • Cisco switching
  • Arista switching

Reference: WJ-747_31205225 · Posted 01 Nov 2026, 12:14 PM

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