Linux Administrator
Linux Administrator
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Salary Not Disclosed
1 Vacancy
Job Description
Position Overview:
We are seeking an experienced and proactive Linux and OpenShift Systems Administrator to support enterprise systems in disconnected and air-gapped environments. This role requires deep knowledge of Linux system administration Red Hat OpenShift and infrastructure automation using Ansible and GitOps tools like Argo CD. The ideal candidate will ensure system reliability security and compliance while supporting high-performance mission-critical environments.
Key Responsibilities:
- Administer configure and maintain Red Hat Enterprise Linux (RHEL) and Oracle Linux systems along with OpenShift clusters ensuring high availability and regulatory compliance in restricted (air-gapped) environments.
- Design and implement automation solutions using Ansible including the development of playbooks roles and automated workflows for system provisioning and configuration management.
- Utilize GitOps methodologies with Argo CD for continuous deployment environment synchronization and infrastructure version control.
- Conduct system tuning performance optimization and troubleshooting in both Linux and OpenShift environments.
- Enforce system security and compliance practices such as NIST STIG and CIS standards through hardening access control patch management and auditing.
- Monitor system health respond to incidents and perform root cause analysis for system or performance failures.
- Maintain comprehensive documentation for configurations operational procedures and troubleshooting guides.
- Collaborate with DevOps security and network teams to support application deployments and environment provisioning.
- Support change management and configuration control in environments with limited external connectivity.
- Provide mentorship and knowledge sharing with internal teams to foster operational excellence and continuous improvement.
- Stay current with emerging technologies and best practices related to Linux OpenShift and infrastructure automation.
Required Qualifications:
- 5 years of experience administering Linux systems in enterprise or mission-critical settings (Red Hat preferred).
- 3 years of hands-on experience with OpenShift including deployment configuration and lifecycle management.
- Demonstrated experience operating in air-gapped or disconnected network environments.
- Advanced skills in Ansible for infrastructure automation and configuration management.
- Experience with Argo CD and GitOps workflows in Kubernetes/OpenShift environments.
- Strong understanding of core infrastructure concepts: networking DNS storage and container orchestration.
- Experience implementing security hardening and compliance measures using tools like SCAP/OpenSCAP.
- Familiarity with CI/CD pipelines version control (e.g. Git) and DevSecOps practices.
- Excellent problem-solving abilities with a detail-oriented and proactive mindset.
- Strong interpersonal and communication skills with the ability to collaborate across technical teams.
Employment Type
Full-time
