Keyrock - Senior Rust Engineer - High Frequency Trading (HFT)

• AWS knowledge • Capital Markets • mission-critical trading systems • As part of the engineering team in Capital Markets, you will take ownership of high-impact trading infrastructure, set technical direction in your domain, and drive continuous improvement in system performance, reliability, and operability. You will join a highly-profitable, fast-paced division within Keyrock, where you will be expected to 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. • continuous improvement • European time zones • Production-grade Rust experience building high-performance, concurrent systems; proficiency with Tokio is a strong advantage • Tokio • 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 • Market Making • Quantitative Trading • Strong AWS and Linux expertise, including cloud infrastructure trade-offs for latency-sensitive workloads, shell scripting, debugging, and production troubleshooting • Linux • Proficiency in Python or other scripting languages for strategy development, automation, and operational tooling • Python • Deep familiarity with trading system protocols (FIX, REST, WebSocket), exchange connectivity, and market data feeds • WebSocket • 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 • agentic engineering • MCP APIs, • AI-First IDEs • harness engineering • 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. • Ownership & Reliability • 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. • Initiative & Problem-Solving • Operational Diligence – Respond strategically to technical and operational challenges, ensuring robust and reliable trading infrastructure while instilling confidence in the team’s processes. • Operational Diligence • Technical Leadership – Influence system design, raise engineering standards, mentor other engineers, and help the team make pragmatic, high-quality technical decisions. • Technical Leadership • 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. • Curiosity & Growth Mindset • Agentic Engineering – Embrace AI-assisted workflows and autonomous agents, pushing the boundaries of what engineering teams can achieve through intelligent automation. • Agentic Engineering • 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.