Core Linux Administration Skills
Administer, monitor, and support Linux servers (RHEL-based systems – versions 6/7/8/9) across Production, Staging, and DR environments.
Perform OS installation, system hardening, patching, upgrades, and vulnerability remediation.
Manage file systems, LVM, RAID, multipathing, and conduct performance tuning and capacity planning.
Hands-on experience with package management systems such as RPM, YUM/DNF, APT, and DPKG.
Strong understanding of Linux networking concepts including TCP/IP, DNS, DHCP, routing, and firewalls.
Strong hands-on experience with load balancers, especially HAProxy and Nginx.
Experience managing web servers such as Apache and Nginx.
Automation & Infrastructure as Code (Highly Emphasized)
Strong automation experience using Ansible for configuration management and orchestration.
Hands-on expertise in Terraform for Infrastructure as Code (IaC), provisioning, and lifecycle management.
Advanced scripting skills in Bash and Python to automate operational tasks and improve system reliability.
Virtualization & Cloud
Support and manage virtualization platforms including VMware, KVM, and Proxmox.
Manage and support cloud infrastructure services including EC2 Instances, Load Balancers, VPC, S3, IAM, and DNS.
Assist with cloud migrations, disaster recovery planning, and hybrid infrastructure design.
Monitoring & Logging
Experience with enterprise monitoring and observability tools including Datadog.
Hands-on experience with metrics visualization using Grafana.
Knowledge of time-series monitoring using Prometheus.
Experience implementing infrastructure and service monitoring using Zabbix.
Exposure to application performance monitoring tools such as Dynatrace.
Containerization & Orchestration
Proficiency with container technologies such as Docker and Podman in Linux environments.
Operations & Incident Management
Act as Level 3 support for complex Linux, automation, and infrastructure-related issues.
Participate in incident handling, root cause analysis (RCA), and preventive action planning.
Ensure SLA compliance and high availability for mission-critical airline applications.
Provide on-call and shift support as per operational requirements.