Technology | Lead Exchange Connectivity Engineer | London (Remote)

Flowdesk

London, United KingdomPosted Aug 2, 2026

About Flowdesk At Flowdesk, we are building the infrastructure powering the next era of global finance. As a full-service digital asset trading and technology firm, we provide liquidity solutions, OTC trading, and market infrastructure that connect digital assets to global markets with institutional-grade precision, transparency, and scale. Flowdesk combines expertise from traditional finance, algorithmic trading, and blockchain technology to deliver always-on trading capabilities across the digital asset ecosystem. Founded in 2020, we are a global team supporting institutions, exchanges, and token issuers to enable a tokenized financial markets ecosystem. Why join Flowdesk? You'll be joining a company operating at the intersection of finance, technology, and crypto; solving complex market problems, building critical infrastructure, and helping shape how digital assets connect to global liquidity. We move fast, think long term, and work with a strong ownership mindset across engineering, trading, product, operations, and business teams. Role Description This is a search for a senior engineer who can lead our exchange connectivity capability end-to-end. The role requires a rigorous operational approach to quality delivery, combined with deep technical and trading expertise. The role requires the ability to lead, make architectural decisions, manage go-live cycles, and debug complex production issues across a broad set of venues. We are looking for an AI-forward developer in this role, who understands the value of building repeatable AI coding workflows to maximise engineering productivity. Key Responsibilities <ul><li>Owning the design, build, and operation of feed handlers across all connected venues. </li><li>Leading connectivity go-lives{{{{:}}}} planning, staging, testing, cutover, and post-launch support. </li><li>Debugging complex production connectivity issues across exchange protocols and internal systems. </li><li>Setting technical standards for how the team approaches exchange integration. </li><li>Mentoring engineers working on connectivity components. </li><li>Contributing to HFT infrastructure where connectivity and execution overlap. </li></ul>Requirements Must have <ul><li>Extensive crypto feed handler experience across multiple venues in production at an institutional firm - not experimental or internal-only. </li><li>Deep understanding of market data feed handling, order lifecycle management, and multi-feed aggregation. </li><li>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. </li><li>Strong understanding of networking protocols down the stack{{{{:}}}} HTTP, WS, TCP/IP</li><li>Understanding of the full go-live cycle{{{{:}}}} from integration and UAT through to production cutover and ongoing support. </li><li>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. </li><li>Experience managing exchange-driven changes (EDC), upgrade lifecycles, and rapid go-live pressures. </li><li>Experience with AI-first development workflows and AI harness engineering and quality assurance. </li><li>Some leadership experience{{{{:}}}} technical lead, team lead, or similar. This person needs to be able to set direction, not just execute. </li></ul>Preferred <ul><li>AI-native experience and AI harness engineering - delivered AI code generation workflows in production. </li><li>Experience managing a team or squad of connectivity engineers. </li><li>Experience across both TradFi and crypto connectivity (FIX, ITCH, OUCH, WebSocket, proprietary). </li><li>Experience with ultra-low-latency development (kernel-bypass, zero-copy). </li></ul>Person profile <ul><li>Curious and autonomous</li><li>Highly motivated and results-driven</li><li>Strong maths and analytical skills</li><li>Ability to successfully manage multiple tasks in a fast-paced collaborative environment</li><li>Professional proficiency in English </li></ul>Company Culture &amp; Values <ul><li>Take Action &amp; Own the Mission</li><li>Be of Service &amp; Contribute</li><li>Innovate, Create Value, &amp; Be Courageous</li><li>Act with Integrity &amp; Respect </li></ul>Recruitment Process Our process is consistent across all engineering roles and is designed to assess genuine technical depth. Candidates should expect the following stages{{{{:}}}} <ul><li>Stage 1{{{{:}}}} First round interview with a member of our Talent Acquisition team (45 mins)</li><li>Stage 2{{{{:}}}} Binance take-home assignment, AI-assisted + online technical screen AI-free. </li><li>Stage 3{{{{:}}}} 30-45 mins with Head of Core Engineering or CTO - assessment of system design, technical experience, discussion of AI output. </li><li>Stage 4{{{{:}}}} Online CoderPad interview with HFT team - Rust focused. </li><li>Stage 5{{{{:}}}} In-person technical interview covering live-coding, data-structure &amp; algorithms round, and background and goals alignment. </li><li>Stage 6{{{{:}}}} Round-Up meeting with Head of Talent Strategy. </li></ul>Benefits Benefits <ul><li>International environment (English is the main language)</li><li>100% health coverage</li><li>Team events and offsites</li><li>Company Pension scheme</li><li>Learning and Development budget</li></ul>