Unix Linux Administrator

3 weeks ago

Hyderabad, India Tata Consultancy Services Full time
Job Role: Unix Linux Administrator

Job Location: Chennai/Hyderabad

Exp Range: 5Years to 8Years

Required technical skills: AIX, HP-UX

Desired Competencies (Technical/Behavioral Competency):

- System Administration: Install, configure, and manage Unix-based operating systems, including RHEL Linux, AIX, HP-UX. - Server Management: Monitor and maintain physical and virtual servers, ensuring optimal performance and uptime. - User Management: Manage user accounts, permissions, and authentication methods (LDAP, NIS, PAM). - Shell Scripting & Automation: Develop and maintain shell scripts (Bash, Perl, Python) for automation tasks like system monitoring, backups, and configuration management. - System Performance Tuning: Monitor system performance, identify bottlenecks, and implement optimizations to improve system efficiency. - Security Management: Apply patches, upgrades, and configure firewalls. Implement security best practices, ensuring systems are protected against vulnerabilities. - Backup & Recovery: Ensure system backups are performed regularly and that recovery procedures are in place and tested. - Troubleshooting: Diagnose and resolve hardware and software issues. Provide support for application and infrastructure teams. - Networking: Understand and manage networking concepts like TCP/IP, DNS, DHCP, VPN, NFS, and SAN/NAS storage solutions. - Incident & Problem Management: Provide support for critical issues (Level 3 escalation). Perform root cause analysis for system outages and incidents. - Documentation: Create and maintain documentation related to system configurations, procedures, and policies. - Collaboration: Work closely with development, application, and infrastructure teams to provide Unix system support and collaborate on IT projects. - In-depth knowledge of Unix-based operating systems (Linux, AIX, Solaris, etc.). - Proficiency in shell scripting (Bash, Perl, Python). - Experience with system monitoring tools (Nagios, Zabbix, etc.) and automation tools (Ansible, Puppet, Chef). - Familiarity with virtualization platforms (VMware, KVM, etc.). - Solid understanding of networking principles (TCP/IP, DNS, DHCP, VLANs, firewalls). - Strong troubleshooting and problem-solving skills. - Experience with storage management (NFS, SAN, NAS). - Knowledge of cloud platforms (AWS, GCP, Azure) is a plus. - Excellent communication and documentation skills. - Ability to work independently and as part of a team.

Good to have skills:

- Good understanding of Incident, Asset, Problem and Change Management (ITIL Process)

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