Linux Systems Engineer - Trading Infrastructure

About the role

A leading global proprietary trading firm is hiring a Linux Systems Engineer for its Trading Infrastructure team in Singapore. The role is hands-on and sits at the intersection of Linux systems, automation, networking and mission-critical trading infrastructure. You will work with software engineers, infrastructure teams, traders and operations stakeholders to deliver reliable, scalable and highly performant systems. No finance experience is needed.

Key responsibilities

• Design, build, maintain and optimise Linux-based production infrastructure supporting trading and research systems.
• Develop automation, tooling and operational workflows using Python and Bash.
• Manage Linux servers, including provisioning, configuration, patching, hardening and performance tuning.
• Support mission-critical production systems, including incident response, troubleshooting and root-cause analysis.
• Build and maintain observability solutions across metrics, logging, tracing and alerting.
• Improve deployment pipelines, configuration management, release processes and infrastructure-as-code practices.
• Collaborate with software engineers, DevOps, networking, data centre and trading teams.
• Conduct performance analysis, capacity planning, stress testing and system optimisation.
• Identify operational inefficiencies and contribute to resilient, scalable infrastructure for latency-sensitive workloads.

Required profile

• Strong Linux systems engineering experience, ideally in trading, fintech, cloud infrastructure or another performance-critical environment.
• Excellent hands-on Linux administration, troubleshooting, performance tuning and production operations.
• Solid understanding of networking fundamentals (TCP/IP, UDP, DNS, routing, switching).
• Experience with configuration management, infrastructure automation and deployment tooling.
• Familiarity with observability tooling, monitoring, alerting, logging and tracing.
• Strong diagnostic ability across application, OS, network and hardware layers.
• Ownership-driven mindset, good communication and comfort in a fast-paced, mission-critical environment.