Linux Systems Administrator

Key Responsibilities:

Linux System Administration

• Administer Linux servers (Ubuntu Pro or RHEL/CentOS) in production and staging environments.
• Configure and secure SFTP, SAMBA, and NFS services for file sharing and data integration.
• Perform OS hardening, patch management, and automation using scripts or configuration management tools.
• Manage user accounts, permissions, firewalls, system logs, and process monitoring.
• Troubleshoot performance, connectivity, and service issues across infrastructure layers.

Web/Application Server Management

• Install, configure, and tune Apache Tomcat and Nginx for high-performance web and application hosting.
• Deploy WAR files and configure server.xml for Tomcat tuning.
• Setup reverse proxy, load balancing, and SSL termination in Nginx.

Cloud DevOps (AWS)

• Manage EC2 instances, EBS volumes, and SSH access.
• Configure VPC subnets, route tables, security groups, and ELB (Application & Network Load Balancers).
• Setup IAM roles, policies, cross-account access.
• Manage S3 storage, bucket policies, and lifecycle rules.
• Setup and mount EFS, configure Route 53 DNS.

Optional / Preferred

• Automation using Bash, Ansible, or Terraform.
• Monitoring and logging with Prometheus, Grafana, ELK, or CloudWatch.