Linux Engineer

About The Opportunity We are looking for a highly skilled Linux Systems Engineer to join a premier global proprietary trading firm. In this role, you will engineer and optimize large-scale Linux infrastructure that powers both ultra‑low‑latency financial systems and high‑throughput research environments. This is a chance to manage a massive global footprint of over 10,000 bare‑metal systems where automation, performance tuning, and technical initiative are the primary drivers of success. Location Chicago, IL (Hybrid/On‑site) Responsibilities Infrastructure Engineering: Lead the provisioning, configuration, and performance tuning of a global, large‑scale Linux fleet to ensure maximum reliability and speed. Automation & Tooling: Design and maintain sophisticated internal tools using Python and Bash to streamline the management of thousands of bare‑metal servers. Configuration Management: Develop and refine codebase for system configurations, ensuring consistency across diverse workloads including Kubernetes‑based applications and high‑frequency trading platforms. Fleet Visibility: Enhance system telemetry by extending monitoring, logging, and alerting frameworks to provide deep visibility into Linux performance metrics. Systems Troubleshooting: Diagnose and resolve complex kernel and network‑level issues within a mission‑critical enterprise environment. Collaborative Development: Engage in a rigorous technical environment through code reviews, merge requests, and cross‑functional architectural discussions. Requirements (Must‑have) Expert Linux Administration: Extensive experience engineering and managing Linux distributions at scale, specifically on bare‑metal hardware. Python Development: Strong proficiency in Python for automation, API design, and systems debugging. Configuration Management: Advanced experience using enterprise‑grade configuration tools (e.g., Puppet/Hiera or equivalent) to manage large server fleets. Automation Frameworks: Proven ability to author complex playbooks and automate tasks using Ansible. Systems & Network Diagnostics: Deep knowledge of low‑level troubleshooting tools such as EBPF, tcpdump, strace, and systemd. Build & Deploy: Solid experience with CI/CD pipelines, Git version control, and RPM package management/repository administration. Network Fundamentals: Strong understanding of TCP/UDP, Multicast, DNS, and routing protocols. Education: Bachelor’s degree in Computer Engineering, Computer Science, or a related technical field (or equivalent professional experience). Preferred Qualifications Containerization: Experience building Docker images and working within Kubernetes environments. Observability: Familiarity with Prometheus, Grafana, and AlertManager, particularly in developing custom exporters for Linux telemetry. High‑Stakes Environments: Previous experience in fintech, high‑frequency trading, or large‑scale research environments. Compensation & Benefits Base Salary: $150,000 – $225,000 USD Total Rewards: This role is eligible for a discretionary performance bonus and a comprehensive benefits package including premium health insurance and paid leave. #J-18808-Ljbffr