Senior Rust Engineer - High Frequency Trading (HFT)

As a Senior Rust Engineer in our Capital Markets division at Keyrock, you own high-impact trading infrastructure and set technical direction for mission-critical trading systems. You join a profitable, fully-remote engineering team, working with quants, traders, and engineers across European time zones to design and operate low-latency systems that power our market-making and high-frequency trading operations.

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 agentic engineering principles to automate operational tasks and evolve the team's 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, with proficiency in Tokio
• Hands-on experience in systematic trading environments (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 such as DPDK
• Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI-first IDEs (such as Cursor and Claude Code), harness engineering, and workflow automation
• Ability to make sound architectural decisions, articulate trade-offs clearly, and guide implementation across complex systems
• Ownership and reliability: take full responsibility for your work, deliver high quality, meet deadlines, and proactively address potential issues
• Initiative and problem-solving: approach challenges with an entrepreneurial mindset, make sound independent judgments, and drive solutions
• Operational diligence: respond strategically to technical and operational challenges, ensuring robust infrastructure
• Technical leadership: influence system design, raise engineering standards, mentor others, and drive pragmatic technical decisions
• Curiosity and growth mindset: continuously improve your technical skills, stay ahead of industry trends, and explore new technologies
• Excellent communication skills and ability to collaborate in a fully remote global team

What we offer

• Competitive salary package
• Flexible working hours and fully remote work
• Autonomy to create your own entrepreneurial experience as part of a team in search of excellence

About Keyrock

Keyrock is a leading digital asset market maker and trading firm founded in 2017, operating across more than 80 exchanges. With over 200 team members from 42 nationalities, we offer market making, options trading, high-frequency trading, OTC, and DeFi trading services. We are pioneers in adopting Rust for algorithmic trading and support Web3 growth through our Accelerator Program.