Senior Software Engineer, Quant trading – Python, Java, C++

Company: Quant Capital
Apply for the Senior Software Engineer, Quant trading – Python, Java, C++
Location: London
Job Description:

Overview

As a Senior Software Engineer, you will design and deliver robust systems enabling 24/7 global crypto trading. You will work with traders and researchers to translate requirements into scalable software across trading, connectivity, and monitoring domains. You’ll contribute to a high-performance tech stack that supports multiple exchanges and regions, shaping the infrastructure that underpins systematic market-making in digital assets. This role blends hands-on development with cross-functional collaboration in a fast-paced, crypto-focused environment.

Responsibilities

  • Collaborate with the cryptoassets team to sustain high-quality systems for global trading operations
  • Architect and implement software for trading systems, exchange connectivity, and monitoring
  • Use Python or Java to execute development tasks
  • Perform unit, functional, and integration testing to ensure reliability and performance
  • Handle legacy and new development projects
  • Foster collaboration among traders, researchers, and engineers

Key requirements

  • High-performance, mission-critical application design and development experience
  • 5+ years of Python; experience with Java and/or C++
  • Experience with network communication (multicast, WebSockets)
  • Proficiency in inter-process messaging, microservice architectures, and API design
  • Familiarity with Functional Programming and Immutable Design
  • Trading systems experience is desirable but not required
  • Excellent oral and written communication skills
  • Bachelor’s degree in Computer Science or equivalent
  • Excellent verbal and written communication
  • Cross-functional collaboration
  • Problem-solving mindset
  • Python (5+ years)
  • Java
  • C++

Posted: September 14th, 2026