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About the Role:

  • Build low-latency trading infrastructure on Linux, working on core components of the Switchboard trading platform.
  • Own the full lifecycle from design through production, including testing, deployment, and incident response.
  • Work with modern C++20, Go, and cloud-native infrastructure on AWS.

What You'll Work On:

  • Modern C++20 and Go on Linux with a focus on microsecond-level latency optimisation.
  • Market-data and reference-data pipelines across multiple asset classes.
  • FIX protocol integrations with global banks and liquidity providers.

What We Need:

  • Strong C++ with Linux systems programming (3+ years) and experience with performance-sensitive systems.
  • Familiarity with networking fundamentals (TCP/UDP, socket programming) and Go experience is a strong bonus.
  • Delivery-focused mindset, ownership of production systems, and clear communication.

What You Get:

  • Real problems with trading systems where performance is measured in microseconds.
  • Competitive package including up to 30 days leave, private health insurance, pension, and more.
  • Remote-friendly, sustainable pace, and career progression to senior roles or technical leadership.

Reactive Markets

Reactive Markets is an OTC trading platform that handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. Their engineering team is small, senior, and deeply invested in building cutting-edge, reliable, high-performance systems.

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