Fidessa Engineer

Role: Fidessa Engineer (OMS / EMS Specialist)
Location: London - 100% on-site
Contract Duration: 12 months

Rate: up to £800 p/d (via PAYE)

We are looking for an experienced Fidessa Engineer to join a Trading Technology team focused on modernising equities execution platforms. This contract role will play a key part in integrating an in-house OMS with Fidessa EMS and shaping the transition toward a scalable, multi-EMS / headless EMS architecture.

Key Responsibilities

• Lead the design, build, and deployment of OMS-Fidessa EMS integrations, covering order entry, execution feedback, and allocations.
• Define and implement FIX connectivity, including session management, execution reports, order routing, and drop copy feeds.
• Collaborate with Fidessa technical teams to align APIs, feeds, and message schemas with internal OMS standards.
• Analyse and optimise end-to-end trade workflows from order creation through execution, booking, and reporting.
• Partner with Front Office, Product, and Risk/Compliance teams to ensure robust trading controls and reporting integrity.
• Troubleshoot complex OMS-EMS issues related to latency, sequencing, reconciliation, and data consistency.
• Contribute to architecture and proof-of-concepts for multi-EMS and headless EMS solutions.
• Produce clear technical documentation, interface specifications, and operational runbooks.

Required Skills & Experience

• 10+ years' experience in equities trading technology within buy-side or sell-side environments.
• Strong hands-on experience with Fidessa EMS and OMS platforms (e.g. Bloomberg AIM, FlexTrade, Charles River, or in-house systems).
• Deep knowledge of FIX (4.2, 4.4, 5.0), EMS routing rules, Wheel, FDM, and drop copy configurations.
• Solid understanding of front-to-back trade lifecycle, market structure, and regulatory requirements (MiFID II, Reg NMS, CAT/TRF).
• Experience with message-driven architectures, SQL, and scripting in Java or Python.
• Excellent problem-solving skills and the ability to work closely with traders and engineers in fast-paced environments.

Apply today or email your CV to

McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds.

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