Technology | Lead Exchange Connectivity Engineer | London
On-siteLondon, England, United Kingdom
Job Summary
Own the design, build, and operation of feed handlers across all connected venues, leading connectivity go-lives from planning through post-launch support. Debug complex production issues across exchange protocols and internal systems while setting technical standards for integration and mentoring engineers. Manage end-to-end venue migrations, including cutover planning, parallel-run testing, and legacy decommissioning to minimize trading disruption. Contribute to HFT infrastructure where connectivity and execution overlap, utilizing AI-first development workflows to maximize engineering productivity. This senior role requires a rigorous operational approach to quality delivery, deep expertise in low-latency Rust and C++, and the ability to lead architectural decisions within Flowdesk's global digital asset trading infrastructure.
Required Qualifications
- Extensive crypto feed handler experience across multiple venues in production at an institutional firm - not experimental or internal-only.
- Deep understanding of market data feed handling, order lifecycle management, and multi-feed aggregation.
- Minimum of 2+ years of solid technical Rust experience, across sync and async code.
- Demonstrable experience of low-latency Rust development, at the very least 5+ years of C++ experience in a low latency environment.
- Strong understanding of networking protocols down the stack: HTTP, WS, TCP/IP
- Understanding of the full go-live cycle: from integration and UAT through to production cutover and ongoing support.
- Proven experience leading multiple venue migrations end-to-end, from cutover planning and parallel-run testing through to full decommission of legacy connectivity, including managing rollback procedures and minimising trading disruption during transition.
- Experience managing exchange-driven changes (EDC), upgrade lifecycles, and rapid go-live pressures.
- Experience with AI-first development workflows and AI harness engineering and quality assurance.
- Some leadership experience: technical lead, team lead, or similar. This person needs to be able to set direction, not just execute.
- Curious and autonomous
- Highly motivated and results-driven
- Strong maths and analytical skills
- Ability to successfully manage multiple tasks in a fast-paced collaborative environment
- Professional proficiency in English
Desired Qualifications
- AI-native experience and AI harness engineering - delivered AI code generation workflows in production.
- Experience managing a team or squad of connectivity engineers.
- Experience across both TradFi and crypto connectivity (FIX, ITCH, OUCH, WebSocket, proprietary).
- Experience with ultra-low-latency development (kernel-bypass, zero-copy).
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