Senior Linux Engineer

Overview

Hybrid
Depends on Experience
Full Time

Skills

Linux Engineering
Systems Administration
kubernetes
openshift
python
bash
kernel
ansible
jenkins

Job Details

Senior Linux Platform Engineer

Salary: Open + bonus

Location: Chicago, IL or Overland Park, KS

Hybrid: 3 days onsite, 2 days remote

*This role is not open to sponsorship candidates*

Qualifications

  • 5+ years of experience in Linux systems administration and infrastructure/platform engineering.
  • Production experience managing Kubernetes, preferably in bare-metal or on-premises environments (e.g., with kubeadm, RKE, or OpenShift).
  • Strong scripting and automation skills in Python and Bash.
  • In-depth knowledge of Linux internals, kernel tuning, and performance diagnostics.
  • Hands-on experience with SaltStack (preferred), Puppet, or Ansible for configuration management.
  • Familiarity with observability tools such as Prometheus, Grafana, or Loki.
  • Solid understanding of core infrastructure protocols and services (TCP/IP, DNS, NTP/PTP, DHCP, etc.).
  • Experience managing CI/CD pipelines with tools such as Jenkins, GitLab, or similar
  • Experience of highly regulated environments
  • Related certifications is a plus

Responsibilities

  • Managing and improving our Linux-based infrastructure with a focus on performance, reliability, and scalability.
  • Designing, deploying, and maintaining on-premises Kubernetes clusters and containerized workloads.
  • Developing and maintaining system-level software, middleware, and APIs to support internal platforms and services.
  • Automating system workflows and infrastructure tasks using Python, Bash, and configuration management tools like SaltStack.
  • Building and maintaining RPM packages and internal software repositories.
  • Collaborating with Application Support (SRE), Development, and Security teams to ensure secure, automated CI/CD and platform integration.
  • Diagnosing and resolving complex system-level issues involving the OS, network, or container runtime.
  • Implementing hardened security configurations, including system hardening, secure communications, and identity/access integration.
  • Participating in an on-call rotation to support critical infrastructure services.
  • Documenting architecture, tools, and operational processes to support long-term maintainability.
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