Rust Engineer - Trading Systems

As a Senior Rust Engineer at Keyrock, you will take ownership of high-impact trading infrastructure within the Capital Markets division, setting technical direction and driving continuous improvement in system performance, reliability, and operability. You join a highly-profitable team where you 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
• 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

What you bring

• 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 a 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
• A 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
• The ability to make sound architectural decisions, articulate trade-offs clearly, and guide implementation across complex systems
• Full ownership of your work, delivering high-quality service, meeting deadlines, and following through on commitments
• An approach to challenges with a problem-solving entrepreneurial mindset, making sound independent judgments and taking initiative to drive solutions
• Technical leadership that influences system design, raises engineering standards, and mentors other engineers
• Excellent communication skills and a collaborative mindset within a fully remote global team

What we offer

• A competitive salary package
• Flexible working hours and the opportunity to work remotely
• Autonomy and the freedom to create your own entrepreneurial experience as part of a team in search of excellence

About Keyrock

Keyrock is a leading market maker in the digital asset space founded in 2017. The team spans over 200 members from 42 nationalities across hubs in London, Brussels, Singapore, and Paris, operating predominantly remote. Keyrock trades on more than 80 exchanges and offers 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 startups through its Accelerator Program.