Linux Administrator L3

3 weeks ago

Hyderabad India MOURI Tech Full time

Job Description Job Title: Linux Administrator with Windows Admin (L3 Support) Key Responsibilities: - Provide L3-level support and administration for Linux servers (RHEL, CentOS, Ubuntu). - Deploy, configure, and manage web hosting platforms (Apache, NGINX, Tomcat). - Administer Linux systems running on VMware environments (vSphere, ESXi, vCenter). - Work with cloud and DevOps teams to implement and support autoscaling on AWS, Azure, or GCP. - Manage certificate servers, including CSR generation, SSL/TLS configuration, and certificate lifecycle renewals (OpenSSL, Let's Encrypt). - Set up and maintain backup tools and disaster recovery processes (rsync, Bacula, Veeam, Acronis, etc.). - Troubleshoot OS-level and infrastructure-level incidents. - Manage core Linux services (DNS, DHCP, FTP, SSH, NFS) and schedule jobs with cron. - Write and maintain Bash scripts to automate tasks and improve system operations. - Monitor system health, disk usage, and performance using tools like Zabbix, Prometheus, Grafana, or Nagios. - Handle user and permission management, implement security measures (firewalls, SELinux, audit logs). - Document systems, operational procedures, and perform routine patching/hardening. - Support high-availability configurations, load balancing, and scaling for hosted websites and services. Required Skills and Qualifications: - 8+ years of experience in Linux server administration and support. - Hands-on experience with Linux systems in VMware environments. - Strong knowledge of Apache/NGINX hosting, virtual hosting, and SSL configuration. - Experience with autoscaling and cloud platforms (AWS, Azure, GCP). - Proficient in certificate management and SSL lifecycle processes. - Experience with backup and restore tools in Linux environments. - Strong scripting skills in Bash; Python knowledge is a plus. - Solid understanding of user/file permissions, ACLs, and sudo configurations. - Familiarity with ITIL processes, ticketing systems, and documentation practices. Preferred Qualifications: - Certifications: RHCE, LFCS, or VMware Certified Professional (VCP). - Exposure to DevOps tools (Ansible, Jenkins, Git) and CI/CD pipelines. - Knowledge of containerization (Docker) and orchestration basics (Kubernetes). - Experience with load balancing and HA solutions (HAProxy, NGINX, ELB).

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