Linux Systems Engineer (Chicago)

This firm is a leading global trading and technology company that combines advanced research, software engineering, and data-driven decision-making to provide liquidity and stability across global markets. With teams across the US, Europe, and Asia Pacific, the company is defined by its culture of collaboration, innovation, and technical excellence. Engineers here work on mission-critical systems that push the boundaries of speed, scale, and reliability.

Technology is the foundation of this global trading firms success. Their infrastructure teams build and maintain the powerful systems that enable millions of trades and decisions to be executed every day driving speed, stability, and innovation across global markets.

They are seeking a Linux Systems Engineer to join their high-performance technology team. This role will focus on designing, scaling, and optimizing a complex Linux-based environment that underpins all trading, research, and development operations. Youll collaborate closely with software engineers, network specialists, and trading teams to deliver low-latency, high-availability systems that perform under pressure.

This position offers the opportunity to work on cutting-edge infrastructure challenges at scale, contributing directly to the reliability and performance of a world-class trading platform.

Core Responsibilities

• Design, build, and maintain high-performance Linux systems supporting large-scale trading and research environments.
• Proactively monitor, troubleshoot, and tune systems for optimal performance, stability, and low latency.
• Automate system configuration, deployment, and management using modern tools and scripting languages.
• Collaborate with development and network engineering teams to identify and resolve infrastructure bottlenecks.
• Manage and evolve system security, patching, and compliance across global data centers.
• Drive improvements in observability, monitoring, and operational resilience through metrics, alerting, and automation.
• Participate in on-call rotation and incident response to ensure continuous uptime of mission-critical systems.

Skills & Experience