Senior Software Engineer, Connectivity | Selby Jennings

Selby Jennings

Job Title: Senior Software Engineer, Connectivity
Employer: Selby Jennings
Location: London, United Kingdom
Employment Type: Permanent
Reference Number: 10826_73c084c7103bceb39d99a56a474a4596


Job Details:

Senior Software Engineer, Connectivity

Digital Assets Prime Brokerage (Fintech)

Office in London, UK (Remote flexible)

A global fintech are currently seeking a talented and experienced Connectivity Software Engineer to join their team and play a crucial role in integrating new digital asset and traditional exchanges into their trading platform.

The successful candidate will have an understanding of cryptocurrency exchange APIs and FIX protocol


  • Lead the integration of new exchanges into our trading platform, ensuring seamless connectivity and functionality.
  • Collaborate with exchange partners and third-party vendors to implement and maintain API connections
  • Develop custom solutions and tools to automate exchange integration processes and streamline trading operations.
  • Test and validate exchange integrations, including order execution, order book management, and trade settlement, to ensure reliability and compliance with regulatory requirements.
  • Monitor exchange API performance and reliability, identify and troubleshoot issues, and implement solutions to optimise trading efficiency.
  • Work closely with internal teams, including software developers, product managers, and compliance officers, to prioritise and deliver integration projects on time and within budget.

Knowledge, Skills & Abilities:

  • 7+ years of Finance experience
  • Bachelor’s degree in Computer Science, Engineering, Finance, or related field.
  • Proven experience working with exchange APIs and protocols, with a strong understanding of order execution, market data, and trade lifecycle management.
  • Hands-on experience integrating digital asset exchanges into trading platforms, including API authentication, data normalisation, and error handling.
  • Proficiency in programming languages such as Python, JavaScript, or Go for scripting and automation tasks.
  • Previous experience working in the cryptocurrency or fintech industry is required.
  • Strong problem-solving skills and attention to detail.
  • Excellent communication and collaboration skills, with the ability to work effectively in a team environment.

Apply Now!



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