Senior System Administrator

Virtualization Platform Management: Administer and support enterprise virtualization platforms — hypervisor clusters, software-defined storage, and platform lifecycle management; participate in design, capacity planning, expansion, and upgrade activities across multiple data centers.

Software-Defined Networking & Cloud Delivery: Support and develop software-defined networking, load balancing, and cloud management/self-service platforms enabling multi-tenant resource delivery; contribute to virtualization-adjacent services such as backup and replication.

Linux Infrastructure Management: Administer and support Linux-based server infrastructure (RHEL/Rocky/AlmaLinux, Ubuntu); manage OS lifecycle, patching, performance tuning, and troubleshooting.

Physical Infrastructure & Storage: Manage enterprise server hardware, storage systems (SAN/NAS), and FC SAN fabrics; support LUN provisioning, zoning, multipathing, and storage migration activities.

Automation & Configuration Management: Develop and maintain automation using Ansible, Python, and Bash; apply Infrastructure as Code principles for configuration and lifecycle management at scale; actively reduce manual operational toil.

Monitoring & Observability: Design and maintain monitoring, alerting, and logging pipelines; ensure proactive visibility into system health, capacity, and performance across the infrastructure stack.

High Availability & Disaster Recovery: Ensure HA and fault tolerance of mission-critical systems; maintain and validate Backup and DR procedures; document and test RPO/RTO targets.

Security & Compliance: Apply security hardening best practices across virtualization and Linux/Unix layers; understanding of SELinux/AppArmor concepts and their role in system security; support vulnerability patching lifecycle and audit/compliance requirements.

Incident Management & Troubleshooting: Lead complex incident resolution and root cause analysis across virtualization, OS, storage, network, and hardware layers; drive post-incident reviews and systemic improvements.

Capacity Planning: Analyze infrastructure trends and proactively plan for growth across compute, storage, and network resources.

Documentation & Collaboration: Produce accurate technical documentation (HLD/LLD, runbooks); mentor junior and mid-level team members; work closely with networking, security, and development teams.