- Company Name
- ATR International
- Job Title
- Linux Administrator
- Job Description
-
Job Title: Linux Administrator
Role Summary: Design, deploy, maintain, and secure Linux server environments ensuring high availability, performance, and compliance with organizational standards.
Expectations: Provide year‑long contractual support; deliver reliable infrastructure; implement automation and monitoring; maintain up‑to‑date documentation and security patches.
Key Responsibilities:
- Install, configure, and update Linux OS (RHEL, Ubuntu, CentOS, SUSE) and application stacks.
- Monitor performance, analyze bottlenecks, and apply tuning for scalability and resilience.
- Apply security controls, perform patching, and manage access via SELinux, firewalls, and authentication services.
- Develop and maintain Bash/Python/Perl scripts and orchestrate with Ansible, Puppet, or Chef.
- Troubleshoot complex hardware/software issues, root‑cause incidents, and provide escalation paths.
- Collaborate with development, networking, and cloud teams to integrate applications and new technologies.
- Document configurations, procedures, and troubleshooting guides for operational continuity.
Required Skills:
- Proven Linux administration experience in production environments.
- Deep knowledge of kernel, filesystems, networking (TCP/IP, DNS, DHCP, SSH), and system services.
- Expertise in automation/configuration management (Ansible, Puppet, Chef).
- Strong scripting proficiency (Bash, Python, Perl).
- Familiarity with virtualization (VMware, KVM) and cloud platforms (AWS, Azure, GCP).
- Experience with container runtimes (Docker, Kubernetes) and monitoring (Nagios, Zabbix, Prometheus, Grafana).
- Excellent analytical, troubleshooting, and communication skills.
Required Education & Certifications:
- Bachelor’s degree in Computer Science, Information Technology, or related field (preferred).
- Red Hat Certified Engineer (RHCE) or Linux Foundation Certified System Administrator (LFCS) highly valued.