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Senior Exchange Connectivity Engineer | Crypto

Selby Jennings
London
2 days ago
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We are working with a pioneering financial technology firm that is building a global institution for digital assets, designed from the ground up for market integrity and efficiency. Their disciplined, first-principles approach underpins everything they do - from institutional liquidity provision and trading solutions to OTC execution and treasury management.

As part of their continued growth, they are seeking a Senior Exchange Connectivity Engineer to join their London team. This role sits at the heart of their trading infrastructure, focusing on ultra-reliable, low-latency integrations with major crypto exchanges.







Key Responsibilities

  • Design and implement exchange connectivity modules (REST, WebSocket, FIX, proprietary APIs).
  • Optimize order entry, market data ingestion, and account management for performance and reliability.
  • Contribute to a fault-tolerant, scalable connectivity framework using Rust and Typescript.
  • Collaborate with trading, infrastructure, and product teams to deliver high-quality integrations.
  • Monitor, debug, and continuously improve production systems.
  • Mentor junior engineers and help shape engineering best practices.
  • Participate in on-call rotations and occasional travel as needed.







Ideal Candidate Profile

  • 3-5+ years of professional software engineering experience.
  • Minimum 1 year of hands-on experience integrating with crypto exchanges.
  • Strong understanding of networking fundamentals (HTTP, WebSocket, TCP, TLS).
  • Proficiency in Rust or a strong C++ background with exposure to Rust.
  • Working knowledge of Typescript.







Nice to Have

  • Experience with Web3 / DeFi protocols.
  • Leadership or mentoring experience.
  • Familiarity with traditional finance connectivity protocols (ITCH / OUCH / UDP Multicast).

This is a unique opportunity to join a high-impact team shaping the future of digital asset infrastructure. If you're passionate about building robust systems and thrive in a fast-paced, collaborative environment, we'd love to hear from you.

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