FIX Onboarding & Client Services
Reactive Markets Is this your company? Claim it · Hybrid, London · Full-time
Description
FIX Onboarding & Client Services, EMEA Hybrid, London, UK (3+ days per week in-office) | Full-Time About Us Reactive Markets is the 2026 OTC Trading Platform of the Year (Risk.net). Our network handles over $75 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 60+ of the world's leading liquidity providers. We build trading systems that operate at the edge of what's technically possible — where nanoseconds matter and a dropped message costs real money. Our engineering team is small, senior, and deeply invested in the craft of building cutting edge, reliable, high-performance systems. The Role We are seeking a motivated and technically curious Onboarding and Client Services professional to join our London team. This role will focus on FIX client onboarding, integrations, and client service delivery across FX, equities and digital assets. The successful candidate will work closely with clients and internal teams to ensure seamless connectivity, smooth integration, and exceptional service throughout the client lifecycle. We're building genuinely AI-enabled tooling to support this function — so this role is less about arriving with a decade of FIX e…
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Questions about this job
Where is this FIX Onboarding & Client Services job located?
The listing places this job in Hybrid, London.
Who is hiring?
The employer shown on the listing is Reactive Markets.
What is the salary?
The listing does not state a salary. Ask the employer about pay, overtime and payment dates before accepting.
Is it full-time or part-time?
The listing type is Full-time.
When was this job posted?
It was posted on 11 November 2026. Jobs that stay open too long are closed automatically, so apply soon if you are interested.
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