Unix Linux Administrator

3 weeks ago

Delhi, 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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