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Senior Rust Engineer High Frequency Trading HFT

Keyrock
Brussels, Belgium Posted Aug 11, 2026
RemoteUSD 105,000 - 120,000 / year

About this role

Senior Rust Engineer High Frequency Trading HFT

  • Design, develop, and optimise low-latency, mission-critical trading systems

  • Own key trading stack components end-to-end — from architecture through to production operation

  • Collaborate closely with quants, traders, and engineers to deliver solutions that improve trading performance and resilience

  • Maintain and evolve trading infrastructure with a focus on performance, stability, observability, and operational excellence

  • Troubleshoot complex production issues across exchange connectivity, execution, and market data handling

  • Drive engineering standards through technical leadership, code reviews, and mentoring

  • Embrace agentic engineering principles: leverage AI-assisted workflows, drive automation of operational tasks, and help evolve the team's agentic tooling

  • Contribute to functional, component, and production-readiness testing for critical trading components

Background and experience

Technical Skills

  • Production-grade Rust experience building high-performance, concurrent systems; proficiency with Tokio is a strong advantage

  • Hands-on experience in a systematic trading environment (HFT, Market Making, Quantitative Trading, or similar), with solid understanding of execution, market data, and operational risk

  • Strong AWS and Linux expertise, including cloud infrastructure trade-offs for latency-sensitive workloads, shell scripting, debugging, and production troubleshooting

  • Proficiency in Python or other scripting languages for strategy development, automation, and operational tooling

  • Deep familiarity with trading system protocols (FIX, REST, WebSocket), exchange connectivity, and market data feeds

  • Solid grasp of low-latency networking: TCP/UDP, packet and latency path analysis, dedicated network infrastructure, and kernel bypass techniques (DPDK)

  • Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI-First IDEs (e.g. Cursor, Claude Code), harness engineering, and workflow automation

  • Ability to make sound architectural decisions, articulate trade-offs clearly, and guide implementation across complex systems

Seniority & Competencies

  • Ownership & Reliability – Take full responsibility for your work. Deliver high-quality service, meet deadlines, and follow through on commitments. Anticipate and proactively address potential issues before they arise.

  • Initiative & Problem-Solving – Approach challenges with a problem-solving entrepreneurial mindset. Make sound, independent judgments and take the initiative to drive solutions rather than waiting for instructions.

  • Operational Diligence – Respond strategically to technical and operational challenges, ensuring robust and reliable trading infrastructure while instilling confidence in the team’s processes.

  • Technical Leadership – Influence system design, raise engineering standards, mentor other engineers, and help the team make pragmatic, high-quality technical decisions.

  • Curiosity & Growth Mindset – Continuously seek to improve your technical skills and knowledge. Stay ahead of industry trends and take the initiative to practice and explore new technologies that excite you.

  • Agentic Engineering – Embrace AI-assisted workflows and autonomous agents, pushing the boundaries of what engineering teams can achieve through intelligent automation.

  • Excellent Communication Skills with a team player mindset, collaborating within a fully remote global team.

Our recruitment philosophy

We value self-awareness and powerful communication skills in our recruitment process. We seek fiercely passionate people who understand themselves and their career goals. We're after those with the right skills and a conscious choice to join our field. The perfect fit? A senior engineer and crypto enthusiast who’s driven, collaborative, acts with ownership, raises the bar for others, and delivers solid, scalable outcomes.

Our offer

  • A competitive salary package

  • Autonomy in your time management thanks to flexible working hours and the opportunity to work remotely

  • The freedom to create your own entrepreneurial experience by being part of a team of people in search of excellence

As an employer we are committed to building a

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