SeniorAdministrator - Linux, Red Hat Cluster, Red Hat Satellite
Noida, Uttar Pradesh
Job Summary
The Linux L2 Engineer is responsible for advanced administration, troubleshooting, and optimization of Linux systems across on-premises and cloud platforms. The role includes owning complex incidents, driving automation, ensuring system reliability, and supporting hybrid infrastructure services integrated with storage, cloud, virtualization, and enterprise tooling.
Key Responsibilities
- Perform advanced administration of Linux servers (RHEL, CentOS, Ubuntu) in enterprise environments.
- Handle L3‑level troubleshooting for OS, CPU, memory, disk, kernel, and performance issues.
- Manage OS patching, upgrades, kernel tuning, and image lifecycle.
- Perform server provisioning, decommissioning, and configuration management.
- Own and resolve P1/P2 incidents related to Linux systems.
- Perform root cause analysis (RCA) and implement preventive actions.
- Support change, release, and configuration management processes.
- Proactively monitor system performance and ensure availability.
- Analyze CPU, memory, IO, filesystem usage and optimize system performance.
- Implement proactive measures and automation for self‑healing systems.
- Support Linux workloads on AWS and OCI, including: o VPC, networking, load balancers, storage (ZFS, EBS‑like services) o Monitoring and alerting
- Manage Linux‑based workloads on IaaS and PaaS platforms, including container hosts.
- Build and support infrastructure provisioning using Terraform (IaaS).
- Develop automation scripts (Shell/Python) for operational efficiency.
- Support Kubernetes‑based platforms (SRE/PRE scope).
- Manage and troubleshoot container host environments.
- Support Linux integration with NAS solutions such as Nasuni Filers.
- Monitor filer health, cache utilization (
Skill Requirements
- Operating Systems: RHEL, CentOS, Ubuntu
- Core Linux Skills:
- LVM, filesystem management, systemd, networking
- Kernel tuning, performance troubleshooting
- Scripting & Automation: Shell scripting, Python
- Cloud Platforms: AWS, OCI
- Infrastructure as Code: Terraform
- Containers: Kubernetes, Docker
- Monitoring Tools: Nagios, Prometheus, CloudWatch, OEM tools
- Storage & NAS: Nasuni, NFS, CIFS
- Virtualization: VMware (basic integration knowledge)
Other Requirements
- Experience in hybrid cloud environments (on‑prem + cloud)
- Exposure to DevOps/SRE practices
- Knowledge of configuration management tools (Ansible, Puppet, Chef)
- Familiarity with enterprise backup solutions (Dell ABS, Data Domain)
- Understanding of networking concepts (DNS, TCP/IP, firewall basics)
- Experience in event correlation and monitoring optimization
- Hands‑on with: VMware Aria Operations (vROps), Aria Automation, Log Insight
- Dell VxRail / PowerEdge infrastructure
- Storage (vSAN, NAS, Dell Unity, ZFS – basic integration)
- Lifecycle Manager (LCM), patching & upgrades
- Monitoring & alerting tools (Datadog, SolarWinds, etc.)
- Basic scripting: PowerCLI / PowerShell
Preferred Skills
- Experience in: Hybrid cloud environments (AWS, OCI basics)
- Terraform / Ansible automation
- Backup tools (Data Domain, Veeam, Commvault)
- Security & vulnerability remediation (Qualys, patching cycles)
- Familiarity with: ITIL processes & ServiceNow