Senior Front Office Business Analyst – London Overview A leading financial services organisation is seeking a highly skilled Senior Front Office Business Analyst with deep hands-on experience across trading platforms - specifically MarkitWire and ION Trading. This role is central to supporting front-office technology change initiatives, ensuring seamless trade execution, post-trade processing, and regulatory compliance. The successful candidate will work directly with traders and quants, supporting day-to-day platform usage, performing testing across ION and MarkitWire, and helping optimise end-to-end workflows. You will also be involved in executing trades within ION, which downstream into Bloomberg TOMS, and subsequently into Murex and other internal systems, so exposure to these integrations is highly desirable. Role & Responsibilities Act as the primary BA supporting front-office users across trading, execution, and post-trade platforms Capture, analyse, and document business and technical requirements across front-office workflows Perform detailed testing across ION Trading, MarkitWire, and related integration points Support traders with platform usage, troubleshooting, workflow queries, and escalation management Execute trades in ION and validate correct data flow into Bloomberg TOMS, Murex, and downstream systems Analyse and enhance clearing workflows - both via MarkitWire and direct venue connectivit...