Linux Administrator L3

1 day ago

Delhi, India MOURI Tech Full time

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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