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Orbis Consultants Logo Orbis Consultants · IT - Software Development

Low-Latency Software Engineer

United Kingdom · Job Posted February 02, 2026
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Job Description

Low-Latency Software Engineer (Real-Time Crypto Infrastructure). We’re working with a crypto firm building real-time, low-latency systems where microseconds matter. This software sits directly on the transaction path and makes in-flight decisions around fund movement and execution under extreme performance constraints. This is not blockchain protocol work or smart contracts. It’s backend infrastructure that feels closer to high-performance trading or payments systems.

Job Responsibility

  • Build and optimise ultra-low-latency, real-time backend systems
  • Tune for microseconds, jitter, and deterministic performance
  • Work deep in concurrency, threading, memory, and runtime behaviour
  • Own critical-path code where performance has real financial impact

Requirements

  • Rust, Java, C++ or similar in performance-critical systems
  • Experience working on low-latency or performance-critical backend systems
  • Strong understanding of concurrency, multithreading, and lock-free or low-lock design
  • Proven focus on latency optimisation rather than just throughput
  • Comfortable working close to the runtime, including memory management and performance tuning
  • An engineering mindset that obsesses over why something takes 5µs instead of 3µs
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