About the role

Senior Unix Administrator / Senior Linux Administrator

Engagement Mode: Remote

Position Overview

We are looking for an experienced Unix/Linux Administrator to manage, support, and optimize enterprise server environments. The ideal candidate should have strong hands-on expertise in Unix/Linux system administration, shell scripting, automation, production support, performance tuning, and system reliability. This role requires someone who can work closely with infrastructure, application, DevOps, and security teams to maintain stable, secure, and high-availability environments supporting business-critical applications.

Key Responsibilities

Administer, monitor, and maintain Unix/Linux servers in enterprise environments
Perform system installation, configuration, patching, upgrades, and OS-level troubleshooting
Monitor system health, CPU, memory, storage, logs, and overall server performance
Troubleshoot production incidents, outages, and performance bottlenecks
Develop and maintain shell scripts to automate routine operational and administrative tasks
Manage users, groups, permissions, file systems, and process-level controls
Support backup, recovery, and disaster recovery procedures
Work with application and DevOps teams to support deployments, releases, and environment stability
Implement system hardening, access controls, and security best practices
Prepare and maintain SOPs, operational documentation, and runbooks
Participate in incident response, root cause analysis, and production support activities

Required Skills

5+ years of hands-on experience in Unix/Linux system administration
Strong experience with Linux distributions and/or enterprise Unix platforms such as AIX, Solaris, or HP-UX
Strong scripting skills in Shell/Bash/KornShell
Good understanding of process management, cron jobs, job scheduling, and system services
Strong knowledge of networking fundamentals including DNS, SSH, FTP/SFTP, NFS
Experience in system performance tuning, capacity monitoring, and log analysis
Hands-on experience with patching, backups, restore procedures, and disaster recovery support
Strong understanding of file systems, storage, LVM/volume management, and server resource utilization
Familiarity with monitoring and log analysis tools such as Nagios, Splunk, Grafana
Experience in production support, incident management, and root cause analysis

Preferred (Bonus) Skills

Exposure to infrastructure automation tools such as Ansible, Puppet, or Chef
Experience with cloud-based Linux administration on AWS, Azure, or GCP
Exposure to Docker, Kubernetes, and deployment support in modern infrastructure environments
Basic scripting or automation experience in Python
Understanding of Unix/Linux security hardening, vulnerability remediation, and audit compliance
Familiarity with DevOps practices, release support, and CI/CD environments
Exposure to Perl scripting