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Uvation

Linux Systems Administrator (Ubuntu / Red Hat)

Uvation, Romania, Pennsylvania, United States

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Job Title:

Senior Linux Systems Administrator (Ubuntu / Red Hat) Location:

Remote (Preferred: IST overlap with U.S. hours)

Employment Type:

Contract part time (4 IST Hour/Day)

Experience Required:

10+ years (Senior Level)

Department:

Infrastructure & Cloud Operations

Reports To:

Infrastructure Lead / DevOps Manager

Position Overview We are seeking a

Senior Linux Systems Administrator

experienced in

Ubuntu and Red Hat Enterprise Linux (RHEL)

environments. The role involves managing and optimizing large-scale Linux server infrastructure across production and development environments, ensuring uptime, reliability, and security.

This position will closely collaborate with DevOps, Network, and Software teams to support mission-critical systems, implement automation, and streamline infrastructure management processes.

Key Responsibilities

Manage, monitor, and maintain

Ubuntu and Red Hat Linux

servers (production and staging).

Perform system upgrades, kernel updates, patch management, and performance tuning.

Implement and manage

user access, security policies, and backup/recovery strategies .

Troubleshoot and resolve hardware, OS, and network-related issues.

Maintain configuration management and deployment pipelines using

Ansible, Puppet, or similar tools .

Monitor system health and resource utilization; ensure optimal uptime and performance.

Collaborate with DevOps and Cloud teams for environment provisioning (AWS, Azure, or on-prem).

Manage

server hardening, SSH configuration, SSL certificates , and OS-level security compliance.

Participate in capacity planning, disaster recovery, and incident response activities.

Create and maintain detailed system documentation, SOPs, and audit reports.

Required Skills & Experience

5+ years of hands-on experience in

Linux system administration (Ubuntu & Red Hat) .

Strong command of

Bash scripting

and automation tools (e.g., Ansible, Terraform, Shell, or Python basics).

Experience with

monitoring tools

such as Nagios, Zabbix, or Prometheus.

Solid understanding of

networking fundamentals (DNS, DHCP, NFS, SSH, firewalls) .

Experience with

virtualization and containerization technologies (VMware, KVM, Docker, etc.) .

Strong troubleshooting skills with system logs, kernel issues, and service failures.

Familiarity with

version control (Git)

and

CI/CD pipeline environments .

Exposure to

cloud platforms

(AWS, GCP, Azure) is an added advantage.

Excellent documentation and communication skills; ability to support global teams.

Preferred Qualifications

Red Hat Certified System Administrator ( RHCSA ) or Engineer ( RHCE ) certification.

Experience managing

high-availability clusters , load balancing, and RAID management.

Previous experience in

enterprise-scale infrastructure environments

or tech product companies.

Soft Skills

Strong ownership and accountability mindset.

Detail-oriented with a proactive approach to issue prevention.

Excellent communication and coordination with cross-functional teams.

Ability to handle pressure and maintain SLAs in critical environments.

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