Job Title: Linux L3 Engineer

3 weeks ago

NCR, India Tetra Information Services Full time

Experience Required: 6 to 8 years in advanced Linux system administration and infrastructure engineering

Key Responsibilities

  • Deliver expert-level technical support and conduct root cause analysis for complex Linux system issues
  • Architect, deploy, and maintain scalable Linux infrastructure across hybrid cloud environments
  • Drive performance tuning, capacity planning, and system optimization initiatives
  • Design and implement high-availability and disaster recovery strategies
  • Lead advanced configuration and troubleshooting of Zimbra, Postfix, and other enterprise mail systems
  • Manage and scale OpenStack environments and virtualized infrastructure
  • Develop and maintain automation workflows using Ansible, Python, and Shell scripting
  • Implement centralized logging and monitoring solutions using ELK Stack, Prometheus, Grafana, and Nagios
  • Ensure infrastructure compliance with security standards through regular audits and assessments
  • Mentor L1/L2 engineers and contribute to internal knowledge base and documentation

Required Skills & Qualifications

  • Expert-level proficiency in Linux distributions (RHEL, CentOS, Ubuntu) and scripting languages
  • Deep expertise in Zimbra architecture, deployment, and migration strategies
  • Advanced troubleshooting capabilities for mail servers including Postfix and Zimbra
  • Strong hands-on experience with OpenStack architecture and operations
  • Proficiency in automation tools such as Ansible, Python, and Shell
  • Solid experience with observability platforms (ELK Stack, Prometheus, Grafana) and Nagios for proactive monitoring
  • In-depth understanding of DNS, LDAP, authentication mechanisms, and core network protocols
  • Proven track record in leading incident response and conducting root cause analysis
  • Exceptional communication, documentation, and mentoring abilities

Preferred Qualifications

  • Red Hat Certified Architect (RHCA) or equivalent advanced certification
  • Experience designing and managing hybrid cloud and containerized environments
  • Prior leadership in supporting 24x7 enterprise-grade infrastructure
  • Degree in Computer Sc / IT

Why Join Us

  • Spearhead initiatives in cutting-edge open-source technologies
  • Enjoy a flexible remote work culture with global collaboration
  • Mentor and grow within a high-performing, technically driven team
  • Receive support for advanced certifications and career development

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