Senior Linux Administrator

Job Title: SR. Linux Administrator

Location: Onsite (Bangalore or Chennai)
Experience Level: 4 to 6 years
Employment Type: Full-Time

Role Overview

We are seeking an experienced SR. Linux Administrator to manage and support our enterprise-scale Linux infrastructure within the Managed Services team. The role involves leading a team of engineers responsible for the availability, performance, and security of Linux-based systems hosted on-premises and on cloud platforms (Azure/AWS).

The ideal candidate should have deep expertise in Linux administration, troubleshooting, automation, and operational governance, with proven experience in incident management and leading technical teams in a 24x7 support environment.

Key Responsibilities

• Lead and mentor a team of Linux support engineers to deliver high-quality operations and support.
• Oversee incident, problem, and change management activities in alignment with ITIL processes.
• Act as a technical escalation point for complex issues related to Linux infrastructure and associated services.
• Ensure SLA adherence for ticket response and resolution (P1, P2 priorities).
• Manage patching, backup, monitoring, and performance tuning across Linux servers.
• Troubleshoot OS, kernel, storage, and network-related issues efficiently.
• Implement and maintain automation scripts for operations using Shell, Bash, Ansible, or Python.
• Manage and optimize enterprise monitoring, alerting, and reporting tools.
• Collaborate with cloud, network, and security teams for cross-platform issues and service delivery.
• Perform root cause analysis (RCA) and drive preventive and corrective actions.
• Review configurations, implement best practices, and enforce compliance with security baselines.
• Maintain technical documentation, SOPs, and runbooks for operational readiness.
• Participate in customer discussions, service reviews, and internal governance meetings.

Technical Skills Required

• In-depth experience with Linux distributions (RHEL, CentOS, Ubuntu, SUSE).
• Strong command of system administration, performance tuning, and troubleshooting.
• Hands-on experience with automation and configuration management tools (Ansible, Puppet, Chef).
• Expertise in Shell scripting / Bash, with working knowledge of Python for automation.
• Experience managing Web, Application, and Database servers on Linux (Apache, Nginx, Tomcat, MySQL, PostgreSQL).
• Knowledge of LVM, SAN/NAS storage configuration, and file system management.
• Familiarity with virtualization and cloud platforms (Azure, AWS, VMware).
• Experience with monitoring tools such as Nagios, Zabbix, Prometheus, or Grafana.
• Understanding of networking fundamentals, firewalls, and load balancers.
• Good understanding of security hardening, patch management, and compliance (CIS benchmarks, vulnerability remediation).

Leadership & Soft Skills

• Strong leadership and people management capabilities.
• Ability to guide, motivate, and upskill team members.
• Excellent communication and stakeholder management skills.
• Analytical thinker with strong decision-making and problem-solving abilities.
• Ability to work under pressure and manage critical incidents in a 24x7 environment.

Qualifications

• Bachelors degree in computer science, Information Technology, or related field.
• Red Hat Certified Engineer (RHCE) or Linux Professional Institute Certification (LPIC-2/3) Mandatory.
• ITIL Foundation certification or working experience in ITIL-based environments is preferred.
• Cloud certifications (e.g., Azure Administrator, AWS SysOps) are desirable.

Work Environment

1. 24x7 Managed Services setup with rotational shift and on-call responsibilities.
2. Exposure to hybrid environments (on-premise and cloud-based Linux systems).
3. Opportunities to work on automation, cloud migration, and infrastructure modernisation projects.