Senior Rust Engineer - Low-Latency Trading (Remote)

Keyrock; Porto; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Competitive salary

Flexible hours & remote

Entrepreneurial team culture

Job summary

Keyrock is seeking a Senior Rust Engineer with deep trading systems experience and strong AWS knowledge to join our Capital Markets division. Candidates with a passion for the Rust ecosystem and a proven track record designing, building, and operating mission‑critical trading systems will be at a significant advantage.

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,

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 and latency path analysis, kernel bypass techniques (DPDK).
• Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI‑First IDEs, harness engineering, and workflow automation.
• Ability to make sound architectural decisions, articulate trade‑offs clearly, and guide implementation across complex systems.

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.
• Contribute to functional, component, and production‑readiness testing for critical trading components.

Skills

Rust

Trading systems

AWS

Python

Networking (low-latency)

Agentic engineering

Architectural decisions

Team leadership

Tools

Tokio

DPDK

FIX protocol

WebSocket

Python

Job description

Keyrock is seeking a Senior Rust Engineer with deep trading systems experience and strong AWS knowledge to join our Capital Markets division. Candidates with a passion for the Rust ecosystem and a proven track record designing, building, and operating mission‑critical trading systems will be at a significant advantage.

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,