Senior Rust Engineer: Low-Latency Trading, Remote

Keyrock; Brussel; On-site; EUR 90,000 - 150,000; Full time

Benefits offered by this job

Flexible working hours

Remote work

Job summary

Keyrock in Brussels is seeking a Senior Rust Engineer with deep trading systems experience and strong AWS knowledge to join our Capital Markets division. You will own high‑impact trading infrastructure and drive performance, reliability, and operability as a senior individual contributor within a fully remote global team.

We value leadership, ownership, and hands‑on design and expect you to mentor others, shape architectural decisions, and push the boundaries of low‑latency, mission‑critical

Qualifications

• 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).
• 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 analysis, and kernel bypass techniques (DPDK).
• Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI‑First IDEs, harness engineering, and workflow automation.

Responsibilities

• 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: leverage AI‑assisted workflows and automation of operational tasks.

Skills

Rust

Trading systems

AWS

Linux

Python

Networking

Agentic engineering

LLMs / AI tooling

Tools

Tokio

FIX

WebSocket

DPDK

AWS

Job description

Keyrock in Brussels is seeking a Senior Rust Engineer with deep trading systems experience and strong AWS knowledge to join our Capital Markets division. You will own high‑impact trading infrastructure and drive performance, reliability, and operability as a senior individual contributor within a fully remote global team.

We value leadership, ownership, and hands‑on design and expect you to mentor others, shape architectural decisions, and push the boundaries of low‑latency, mission‑critical