Fidessa Engineer
<b>Requirements:</b>
<ul><li>10 years experience in equities trading technology within buy-side or sell-side environments</li><li>Strong hands-on experience with Fidessa EMS and OMS platforms (e.g. Bloomberg AIM, FlexTrade, Charles River, or in-house systems)</li><li>Deep knowledge of FIX (4.2, 4.4, 5.0), EMS routing rules, Wheel, FDM, and drop copy configurations</li><li>Solid understanding of front-to-back trade lifecycle, market structure, and regulatory requirements (MiFID II, Reg NMS, CAT/TRF)</li><li>Experience with message-driven architectures, SQL, and scripting in Java or Python</li><li>Excellent problem-solving skills and the ability to work closely with traders and engineers in fast-paced environments</li></ul>
<b>Responsibilities:</b>
<ul><li>Lead the design, build, and deployment of OMS-Fidessa EMS integrations, covering order entry, execution feedback, and allocations</li><li>Define and implement FIX connectivity, including session management, execution reports, order routing, and drop copy feeds</li><li>Collaborate with Fidessa technical teams to align APIs, feeds, and message schemas with internal OMS standards</li><li>Analyse and optimise end-to-end trade workflows from order creation through execution, booking, and reporting</li><li>Partner with Front Office, Product, and Risk/Compliance teams to ensure robust trading controls and reporting integrity</li><li>Troubleshoot complex OMS-EMS issues related to latency, sequencing, reconciliation, and data consistency</li><li>Contribute to architecture and proof-of-concepts for multi-EMS and headless EMS solutions</li><li>Produce clear technical documentation, interface specifications, and operational runbooks</li></ul>
<b>Technologies:</b>
<ul><li>Java</li><li>Python</li><li>SQL</li></ul>
<p><b>More:</b></p>
<p>We are looking for an experienced Fidessa Engineer to join our Trading Technology team in London, focused on modernising equities execution platforms. This contract role will play a key part in integrating our in-house OMS with Fidessa EMS and shaping the transition toward a scalable, multi-EMS / headless EMS architecture. We value a collaborative working environment and seek individuals eager to drive innovation and efficiency in our trading technology solutions.</p>
<p>last updated 8 week of 2026</p>