FIX Connectivity Engineer

ION
📍 Woking, England, United Kingdom 💼 Full-time 🕒 Posted January 21, 2026

Job Description

The Role:The FIX Connectivity Engineer works part of a global operations team responsible for on-boarding and maintaining services for buy-sides / sell-sides on ION’s FIX Network at an application level. These buy-sides / sell-sides use both ION trading solutions as well as 3rd party OMS/EMS solutions. The engineer engages directly with clients and external vendors in a fast-paced environment, managing multiple requests from small daily tasks to larger multi-team projects.

Key Responsibilities

  • To implement new application level connections between clients on the ION network
  • To analyse, implement and certify new client / services on the ION network using the FIX protocol
  • To liaise with clients, third party vendors, and internal teams regarding FIX-based projects
  • To offer 3rd line support to the ION Support department
  • Participates in the team shift patterns and assists with weekend work and out of hours escalation when required
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    Job Details

    • Location Woking, England
    • Job Type Full-time
    • Category Computer Occupations
    • Posted Date January 21, 2026
    • Application Deadline March 02, 2026