Rust Engineer - Trading Systems

As a Senior Rust Engineer at Keyrock, you will take ownership of high-impact trading infrastructure within our Capital Markets division. You will set technical direction in your domain and drive continuous improvement in system performance, reliability, and operability. Joining a highly-profitable division within a leading digital asset market maker, you will make a senior individual-contributor impact while collaborating with a global, fully-remote team. This role is open to candidates located in European time zones.

What you'll do

• 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
• Leverage AI-assisted workflows and drive automation of operational tasks to evolve the team's agentic tooling
• Contribute to functional, component, and production-readiness testing for critical trading components

What you bring

• Production-grade Rust experience building high-performance, concurrent systems
• Hands-on experience in a systematic trading environment such as HFT, Market Making, or Quantitative Trading, 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 such as FIX, REST, and WebSocket, including 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 such as DPDK
• Ability to make sound architectural decisions, articulate trade-offs clearly, and guide implementation across complex systems
• Ownership and reliability in delivering high-quality service, meeting deadlines, and anticipating potential issues before they arise
• An entrepreneurial problem-solving mindset with the ability to make independent judgments and drive solutions
• Technical leadership skills to influence system design, raise engineering standards, and mentor other engineers
• Curiosity and a growth mindset, continuously seeking to improve your technical skills and stay ahead of industry trends
• Excellent communication skills and a collaborative approach to working within a fully remote global team

Nice to have

• Proficiency with Tokio
• Familiarity with agentic engineering tools and concepts, including LLMs, MCP APIs, AI-First IDEs such as Cursor or Claude Code, harness engineering, and workflow automation

What we offer

• A competitive salary package
• Flexible working hours and the opportunity to work remotely
• Autonomy in your time management

About Keyrock

Keyrock is a leading digital asset market maker founded in 2017, trading on more than 80 exchanges and working with a wide array of asset issuers. With over 200 team members from 42 nationalities across hubs in London, Brussels, Singapore, and Paris, Keyrock offers services spanning market making, options trading, high-frequency trading, OTC, and DeFi trading desks. The company is a pioneer in adopting Rust for algorithmic trading and supports Web3 ecosystem growth through an accelerator program and liquidity provision to DeFi, RWA, and NFT protocols.