Unix/Linux System Administrator

Web Developer

Project Role : Web Developer
Project Role Description : Design, build and test web-based applications for various site components and edit site content. Document technical designs and specifications. Research and incorporate updated content for websites.
Must have skills : Linux Architecture
Good to have skills : Linux Operations
Minimum 3 year(s) of experience is required
Educational Qualification : 15 years full time education

Summary
We are seeking a highly experienced Unix/Linux Administrator with hands-on expertise across Solaris, AIX, HP-UX, and Linux platforms. The role involves managing enterprise-level systems, providing 24x7 production support performing upgrades, troubleshooting complex issues, and driving root cause analysis. The ideal candidate will have strong knowledge of clustering, virtualization (LDOMs, Solaris Zones), automation scripting, and performance monitoring.

Roles & Responsibilities
Administer and support Unix (Solaris, AIX, HP-UX) and Linux (RHEL/OEL/CentOS/Suse/Ubuntu) environments
Manage LDOMs, Solaris Zones, and clustering technologies (HACMP, Veritas Cluster, Solaris Cluster)
Execute OS patching, upgrades, and migrations across Unix/Linux systems
Troubleshoot incidents and perform detailed Root Cause Analysis (RCA)
Develop and maintain automation scripts in Bash and Korn Shell (Ksh)
Support configuration management through Puppet
Configure, optimize, and troubleshoot SSSD for authentication and identity services
Monitor system performance, capacity, and health to ensure high availability
Maintain system documentation, SOPs, and RCA reports

Professional & Technical Skills
Strong knowledge of Solaris, AIX, HP-UX, and Linux (RHEL/OEL/CentOS) administration
Experience with LDOMs, Solaris Zones, clustering, and high availability solutions
Proficiency in Bash/Ksh scripting for automation and troubleshooting
Familiarity with Puppet or similar configuration management tools
Expertise in SSSD,NFS,Autofs, authentication services, and security hardening, PAM, auditd
Skilled in performance monitoring and tuning using tools like nmon, topas, prstat, vmstat, iostat, sar etc.
Strong background in incident troubleshooting, RCA, and capacity planning
Good understanding of networking fundamentals (DNS, NTP, TCP/IP), storage (SAN, NFS, LVM, ZFS)
Knowledge of audit/compliance processes and ITIL best practices
Exposure to cloud platforms (AWS, Azure, OCI) and automation (Bash and Korn shell scripting) is a plus
. Key Competencies: Strong analytical skills, problem-solving mindset, ability to work under pressure, effective communication, proactive approach, and team collaboration

Additional Information
The candidate should have minimum 6-8 years of experience in Linux
Work Model: 24x7 rotational support environment .
A 15 years full time education is required.