Senior Red Hat Linux Engineer

About the role

LS Technologies, a Tetra Tech company, is seeking a Senior Red Hat System Administrator or Engineer to support on-prem IT infrastructures running Red Hat Enterprise Linux (RHEL) in a virtualized environment. This role supports enterprise cybersecurity services in a dev/test/prod deployment environment supporting critical FAA cybersecurity capabilities.

Responsibilities

• Supports the development and management of container technologies and the integration of DevSecOps solutions.
• Develops and maintains RHEL deployments supporting cybersecurity applications.
• Designs, configures, tests, and deploys automation of tasks and integrates RHEL into the infrastructure ecosystem.
• Enforces DISA STIG standards across both the Linux operating system layer and the container runtime environments.
• Works as the highest escalation point for complex technical issues spanning the operating system, hypervisor, network, and container orchestrator.
• Applies system engineering techniques to solve and mitigate cyber vulnerabilities.
• Works with teammates to design, provision, scale, and maintain enterprise container platforms (e.g., Red Hat OpenShift, Kubernetes).
• Manages cluster networking, persistent storage integration, and node health.
• Develops and maintains operations-related documentation, including configuration data, change requests, installation procedures, knowledge base articles, Standard Operating Procedures (SOPs), engineering diagrams, and test plans.

Requirements

• Minimum of 10 years of hands-on experience designing, developing, and deploying RHEL environments.
• Experience working in a multi-platform (Microsoft, RHEL, VMWare) infrastructure.
• Experience with RHEL 8+, RHCI, OpenShift, Ansible.
• Experience with using ticketing systems and Tier II or higher helpdesk.
• Knowledge of Linux iptables, networking configuration, and DNS.
• Ability to apply system engineering techniques to solve and mitigate cyber vulnerabilities.
• Experience with hardening enterprise environments using DISA STIGs, utilizing tools like OpenSCAP, SCAP Compliance Checker (SCC), or automated remediation playbooks.
• Minimum of a B.S. in Computer Science preferred.
• Red Hat Certified Engineer (RHCE) or Red Hat Certified Architect (RHCA) preferred.
• Red Hat Certified Specialist in OpenShift Administration or Certified Kubernetes Administrator (CKA) preferred.
• CompTIA Security+ or equivalent.

Qualifications

• A successful candidate will have 10+ years of experience performing Red Hat Linux systems engineering, with at least 3 years of hands-on experience architecting and managing production-grade Kubernetes or Red Hat OpenShift environments.
• Demonstrated experience with managing traditional virtualized IT infrastructure (storage, LVM, networking) while simultaneously supporting container technologies and microservices.