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Linux Systems Engineer

Nextica Solutions IncChicago, IL🇺🇸United StatesPosted Sep 30, 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Chicago, IL, United States
Posted
20 hours ago
DockerAnsibleBashDNSGitGrafanaKubernetesPrometheusPuppetPython

Job Description

Linux Systems Engineer: Chicago, IL
 
About the job
We're looking for a Linux Engineer with strong systems knowledge and Python/scripting skills to join our expanding global team. You'll build and run Linux at scale in a business-critical environment, and improve the automation and self-service tooling we use to manage our server estate.
The Linux Engineering group owns provisioning, configuration, performance and reliability for a large Linux infrastructure that runs many kinds of workloads. These include ultra-low latency systems at the core of high-frequency trading, high-throughput research environments, and a wide range of Kubernetes-based applications. You'll need solid Linux fundamentals applied at scale, with automation driving consistency and efficiency across the fleet. Your initiative, teamwork, problem-solving and drive to keep improving will help the firm stay competitive by bringing new technologies and practices into production.
What You'll Do:
  • Use deep Linux expertise to diagnose and fix complex issues on enterprise systems, keeping them stable and performant
  • Improve the configuration management code and processes behind 10,000+ bare-metal Linux servers worldwide
  • Build and maintain Python/Bash tooling for large-scale Linux management
  • Streamline provisioning so bare servers become production-ready platforms
  • Expand Linux metrics, logging, monitoring and alerting integrations for full fleet visibility
  • Keep peers and stakeholders updated through meetings, tickets, code reviews, chat and merge requests
What You'll Bring:
  • Hands-on Linux engineering, administration and provisioning at scale, ideally on bare metal
  • Large-scale configuration management, ideally Puppet and Hiera on bare-metal servers
  • Python for automation, APIs, design, testing and debugging
  • Writing Ansible playbooks and automating complex tasks
  • Designing, building and publishing RPMs, plus managing in-house repositories
  • CI/CD pipelines, Git, and good branching/merging practice
  • Strong system and network troubleshooting with tools like eBPF, tcpdump, strace, systemd, NTP/PTP, lsof and nc
  • Networking fundamentals: routing, DNS, TCP/UDP/multicast
  • Building and publishing Docker images
  • Working knowledge of Kubernetes
  • Exposure to Prometheus, Grafana and AlertManager, especially Linux telemetry and exporter development
  • Bachelor's in Computer Engineering or a related field, or equivalent experience

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