Keyrock
Senior Rust Engineer - High Frequency Trading (HFT)
Brussels +32 · Senior · Full-time · Posted Aug 10, 2026
- Location
- Brussels
Rome
Zug
Porto
Istanbul
Eindhoven
Geneva
Milan
Amsterdam
Manama
Madrid
London
Berlin
Antwerp
Copenhagen
Vienna
Prague
Athens
Budapest
Paris
Frankfurt
Dublin
Warsaw
Sofia
Luxembourg
Remote
Zurich
Lisbon
Tallinn
London OR Brussels
Rotterdam
Krakow
Zagreb
About the job
Designs, operates, and improves low-latency trading infrastructure for Keyrock’s Capital Markets division, collaborating with quants, traders, and engineers.
What you'll do
- Design, develop, and optimise mission-critical trading systems and own components from architecture through production operation.
- Improve performance, reliability, observability, and operational resilience; troubleshoot production issues across exchange connectivity, execution, and market data.
- Provide technical leadership through architecture decisions, code reviews, mentoring, testing, and automation of operational workflows.
What they ask for
- Production-grade Rust experience building high-performance, concurrent systems.
- Hands-on experience in systematic trading, such as HFT, market making, or quantitative trading, and understanding of execution, market data, and operational risk.
- Strong AWS and Linux expertise, including latency-sensitive infrastructure, scripting, debugging, and production troubleshooting.
- Proficiency in Python or another scripting language; familiarity with trading protocols, exchange connectivity, market data feeds, and low-latency networking.
Nice to have
- Tokio proficiency.
- Familiarity with agentic engineering tools and concepts, including LLMs, MCP APIs, AI-first IDEs, harness engineering, and workflow automation.
Tools
Rust, Tokio, AWS, Linux, Python, FIX, REST, WebSocket
AI focus
Use AI-assisted workflows and autonomous agents, automate operational tasks, and help evolve the team's agentic tooling.
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