A City based Banking institution is seeking a Systems & Application Support Specialist with strong Fidessa trading platform expertise to support trading across UK and US markets. This is a front-office aligned role requiring close interaction with Traders, Sales Traders, Compliance, and Technology teams to ensure high availability, performance, and stability of mission-critical trading systems.
Key Responsibilities
Trading Systems Support
*Provide 1st, 2nd, and 3rd line support for the Fidessa trading platform across cash equities, derivatives, and related workflows.
*Deliver real-time trading floor support during UK and US market hours, ensuring rapid response to incidents and minimal disruption to trading activity.
*Monitor system performance, connectivity, market data feeds, and order routing infrastructure to proactively identify and resolve issues.
Incident & Problem Management
*Own production incidents end-to-end, including triage, root cause analysis, escalation, resolution, and post-incident reporting.
*Coordinate with internal technology teams, Fidessa vendor support, exchanges, brokers, and infrastructure partners as required.
*Ensure adherence to ITIL processes and operational best practices.
System Configuration & Enhancements
*Configure Fidessa modules, workflows, user profiles, permissions, FIX connectivity, and market access parameters.
*Support releases, upgrades, patches, and testing cycles, including UAT coordination with front-office stakeholders.
*Deliver enhancements to improve execution workflows, system resilience, automation, and user experience.
Stakeholder Engagement
*Act as a trusted technology partner to Traders, Sales Traders, Compliance, Risk, and Operations, translating business needs into technical solutions.
*Support regulatory initiatives and controls (e.g., MiFID II, best execution, trade surveillance, market abuse monitoring).


Required Skills & Experience
Technical / Platform
*Strong hands-on experience supporting Fidessa in a front-office trading environment.
*Solid understanding of equity trading workflows, market microstructure, order lifecycle management, and execution venues.
*Experience with FIX protocol, market data feeds, OMS/EMS integrations, and low-latency trading environments.
Support & Operations
*Proven experience in production support within investment banking, broker-dealer, or asset management environments.
*Strong incident management, troubleshooting, and root cause analysis skills in high-pressure trading environments.
*Experience supporting UK and US trading desks, including overlapping market hours and time-sensitive workflows.
Business & Communication
*Excellent stakeholder management and communication skills, particularly when working directly with front-office users.
*Ability to operate calmly and decisively in time-critical trading situations.
*Strong documentation, organisational, and prioritisation skills.