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Fidessa Developer

Job in City Of London, Central London, Greater London, England, UK
Listing for: Apex Systems US
Full Time position
Listed on 2026-09-19
Job specializations:
  • Software Development
    Backend Developer, DevOps, Software Engineer, Unix/Linux
Salary/Wage Range or Industry Benchmark: 75000 - 120000 GBP Yearly GBP 75000.00 120000.00 YEAR
Job Description & How to Apply Below

Overview

We are seeking an experienced Fidessa Developer to join a global Equities Cash Technology team supporting institutional and retail trading businesses.

This is a hands- on development role focused on the customisation, enhancement, implementation and support of a highly tailored Fidessa environment. The successful candidate will have deep expertise in Fidessa architecture and a proven track record developing solutions directly within OMS/EMS platforms.

This is not a support, QA, business analysis or integration-focused position. We are specifically seeking candidates who have developed and customised functionality inside Fidessa.

Key Responsibilities
  • Develop, customise and enhance Fidessa trading applications and workflows.
  • Build custom screens, business logic, order management functionality and workflow automation.
  • Deliver ongoing platform enhancements and participate in Fidessa upgrades.
  • Develop and maintain TCL-based solutions within the Fidessa platform.
  • Integrate external market and trading data feeds, including RTD solutions.
  • Collaborate with technology teams, project managers and business stakeholders on strategic initiatives.
  • Support production trading systems and contribute to Dev Ops and automation efforts.
Required Experience
  • Hands- on Fidessa development experience within OMS and/or EMS environments.
  • Strong Fidessa architecture and implementation knowledge.
  • Direct platform customisation including workflow changes, order routing logic, custom screens and business rules.
  • Strong TCL development experience.
  • Experience with Fidessa upgrades in customised environments.
  • Linux/Unix experience.
  • Equities trading systems and order management knowledge.
  • Ability to discuss complex OMS workflow challenges they have personally solved.
Technical Skills

Experience with a broad range of Fidessa products is highly desirable, including CASE, FBL, TOP (OMAR, TMAR, PMAC), PAIRS, NMS, FIX+, APAS and FDA.

Additional technical experience may include:

  • FIX Protocol
  • Python, Shell Scripting, Power Shell
  • Sybase and SQL Server
  • Distributed systems and event-driven architecture
  • Messaging technologies such as IBM MQ, AMPS or Tibco EMS
  • CI/CD, Dev Ops and automated testing frameworks
Desirable Skills
  • Java development experience
  • FDA expertise
  • FTW implementation or development experience
  • Experience with in large-scale global investment banking environments
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