Senior C++ Engineer – Low-Latency Trading Platform

Company: Reactive Markets Limited
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Job Description:

Reactive Markets Limited in the United Kingdom is seeking a Senior C++ Software Engineer to shape the Switchboard trading platform. You will work on latency-critical components, from pricing engines to messaging layers, owning deliverables and production support.

You’ll collaborate across teams, review designs, mentor engineers, and contribute to architectural decisions while embracing modern C++20, Go, and cloud-native AWS infrastructure.

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Posted: October 21st, 2026