What are the responsibilities and job description for the Senior Linux Administrator position at ComTec Information Systems?
Job Details
Title: Senior Linux Administrator
Location: Little Rock, AR
Work Mode: Hybrid 3 day a week to local office
Full Time
Key Responsibilities:
- Lead, design, implement, and maintain enterprise Linux environments (Solaris, Debian, RHEL, Ubuntu).
- Own architecture decisions for high availability, scalability, and performance.
- Monitor systems and perform performance tuning and capacity planning.
- Lead troubleshooting and root cause analysis for complex system and production issues, including service failures.
- Manage OS patching, upgrades, lifecycle, and package management.
- Implement Linux security hardening, access controls, and compliance standards (including SELinux).
- Manage Linux storage including LVM, file systems, multipathing, and performance tuning.
- Design and maintain automation using scripting and configuration management tools.
- Support Linux workloads in cloud and hybrid environments (AWS).
- Support Linux systems in VMware environments, including backup and disaster recovery.
- Provide OS-level support for container platforms.
- Collaborate with network teams on Linux connectivity, VLANs and bonding.
- Mentor junior administrators and act as the escalation point for Linux issues.
- Participate in incident, change, and problem management using ServiceNow or similar tools.
- Maintain system documentation, standards, and operational runbooks.
Required Skills:
- Minimum 8 years of hands-on Linux system administration experience.
- Expert knowledge of Linux internals, system performance tuning, troubleshooting, and package management.
- Strong experience with Linux storage management (LVM, file systems).
- Strong experience with shell scripting and automation (Bash, Python).
- Advanced experience with configuration management tools (Ansible, Puppet, Chef).
- Strong understanding of Linux security, hardening, and compliance best practices.
- Experience supporting Linux systems on VMware platforms (vSphere, DRS, HA).
- Hands-on experience supporting Linux systems in AWS or other cloud platforms.
- Experience managing container environments (Docker, Kubernetes) from an OS perspective.
- Solid understanding of networking concepts including switches, firewalls, VPNs, and monitoring tools.
- Familiarity with ITSM tools such as ServiceNow for incident, change, and problem management.
- Experience supporting high-availability and production-critical environments.
- Ability to lead technical initiatives and mentor team members.
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