Trading Software engineer

Selby Jennings; Aarhus; On-site; DKK 600,000 - 900,000; Full time

Job summary

Selby Jennings in Aarhus, Denmark, is seeking a Trading Engineer to join a collaborative team supporting and evolving low-latency trading systems alongside traders, quantitative researchers, software engineers, and infrastructure specialists.

You will troubleshoot production issues, improve stability and performance, coordinate releases, and drive automation using open-source technologies to minimize downtime.

Qualifications

• 2+ years in SRE/DevOps/Platform Eng or similar.
• Strong Python and Bash scripting skills.
• Hands-on experience with Kubernetes and Linux.
• Experience supporting production-critical systems.
• Solid understanding of TCP/IP and networking basics.
• Good communication to work with business stakeholders.

Responsibilities

• Troubleshoot production issues in a fast-paced trading environment.
• Improve stability, scalability, and performance of trading infrastructure.
• Collaborate with traders and researchers to translate requirements.
• Coordinate software releases, migrations, and infra changes.
• Automate processes to minimize downtime using open-source tech.
• Contribute to a low-latency, real-time data ecosystem.

Skills

Python

Bash scripting

Kubernetes

Linux environments

Networking fundamentals

Job description

Trading Engineer | Quantitative Trading Firm | Aarhus, Denmark

Our client is one of the world's leading quantitative trading firms, where technology sits at the core of every trading strategy.

They're looking for a Trading Engineer to join a highly collaborative team working directly alongside traders, quantitative researchers, software engineers, and infrastructure specialists to support and evolve the systems that power global trading operations.

This is not a traditional DevOps or SRE role. You'll be operating at the intersection of technology and trading, solving complex production challenges, improving the reliability of low-latency trading platforms, and helping deliver technology that directly impacts trading performance.

What You'll Be Doing

• Troubleshoot and resolve production issues in a fast-paced trading environment while identifying and addressing root causes.
• Improve the stability, scalability, and performance of critical trading infrastructure.
• Work closely with traders and quantitative researchers to translate business requirements into technical solutions.
• Coordinate software releases, exchange migrations, and infrastructure changes across trading systems.
• Automate processes and eliminate downtime using modern open-source technologies.
• Contribute to a highly sophisticated ecosystem of trading systems, market data infrastructure, networking, and low-latency technology.

What We're Looking For

• 2+ years' experience in Site Reliability Engineering, DevOps, Platform Engineering, Systems Engineering, Trading Infrastructure, or MLOps.
• Strong Python and Bash scripting skills.
• Hands-on experience with Kubernetes and Linux environments.
• Experience supporting production-critical systems and troubleshooting complex technical issues.
• Understanding of networking fundamentals and TCP/IP.
• Strong communication skills and a desire to work directly with business stakeholders.

Why This Opportunity?

• Direct exposure to traders and quantitative researchers
• Work on business-critical systems where your contributions have an immediate impact
• Ownership of complex technical challenges across a world-class trading environment
• Exposure to low-latency systems, real-time data flows, and cutting-edge infrastructure
• Opportunity to accelerate your career within one of Europe's most respected quantitative trading firms
• Collaborative, engineering-led culture with a strong focus on learning and development