FIX Onboarding & Client Services Specialist

Reactive Markets Limited is seeking a technically skilled Onboarding and Client Services Associate for our London team. The role focuses on FIX onboarding, integrations, and client service across FX, equities and digital assets.

You will work with clients and internal teams to ensure seamless connectivity and effective production support throughout the client lifecycle. We value strong FIX protocol knowledge, multi-asset experience, and a proactive approach to automation and AI-assisted tooling