Quantitative Developer, Low Latency

Flowdesk

Rust engineer focused on OMS and trading infrastructure at Flowdesk. Building and maintaining low-latency trading systems for digital assets.

Posted 7/3/2026full-timeLondon • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Distributed SystemsRust

About the role

Key responsibilities & impact

Order Management System (OMS) development and maintenance.
Feed handler design and optimisation - processing market data at high throughput.
Strategy logic implementation and integration with execution infrastructure.
Low-level networking code: custom protocol parsing, socket management, kernel bypass techniques.
Fast parsing pipelines for market data and order flow.
Exchange connectivity across FIX, WebSocket, and proprietary protocols.
Latency profiling, benchmarking, and continuous performance improvement.

Requirements

What you’ll need

Direct, hands-on experience building OMS, feed handlers, and/or strategy logic in a production environment.
Strong Rust - the primary language for this role. Experience with both async and non-async (synchronous / bare-metal) Rust is highly valued.
Low-level networking: socket programming, protocol implementation, latency-aware design.
Experience writing fast parsing code - binary protocols, custom formats, minimal-copy pipelines.
FIX protocol and WebSocket connectivity in production.
Strong understanding of distributed systems and state synchronization.
TradFi or institutional crypto market-making background (Preferred).
Experience with kernel bypass networking (DPDK, RDMA, or similar) (Preferred).
Familiarity with lock-free data structures and wait-free concurrency (Preferred).
Options or derivatives experience (Preferred).
C++ background - useful where Rust experience is being built (Preferred).

Benefits

Comp & perks

International environment (English is the main language)
100% health coverage
Team events and offsites
Company Pension scheme
Learning and Development budget

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Order Management SystemFeed Handler DesignStrategy Logic ImplementationSocket ProgrammingLatency ProfilingBinary ProtocolsCustom Protocol ParsingKernel Bypass NetworkingLock-Free Data StructuresWait-Free Concurrency