Senior System Administrator
Responsibilities: Administer, configure, and maintain RHEL and Oracle Linux environments, including OS patching, upgrades, kernel tuning, live patching, and lifecycle management. Resolve L3-level operating system, performance, capacity, and stability issues, and perform advanced system performance optimization.
Skills
About This Role
Responsibilities
- Administer, configure, and maintain RHEL and Oracle Linux environments, including OS patching, upgrades, kernel tuning, live patching, and lifecycle management.
- Resolve L3-level operating system, performance, capacity, and stability issues, and perform advanced system performance optimization.
- Configure and manage NFS, enterprise storage, and Linux High Availability (HA) solutions.
- Design, deploy, and operate workloads on Oracle Cloud Infrastructure (OCI), including computer, networking, storage, Container Registry.
- Manage OCI Block, Object, and S3-compatible storage, backups, snapshots, restores, and disaster recovery solutions.
- Deploy, operate, and troubleshoot containerized environments, including Docker and Oracle Kubernetes Engine (OKE), supporting microservices and cloud‑native architectures.
- Implement container security best practices and manage container image lifecycles.
- Develop and maintain automation using Terraform, Ansible Tower, Shell, and Python for provisioning, configuration management, patching, and compliance.
- Implement and enforce server security, including hardening, vulnerability remediation, audits, and compliance reporting.
- Design and support IDM, centralized authentication, RBAC, and sudo/access policies.
- Integrate Linux and cloud platforms into CI/CD pipelines and troubleshoot complex system and networking issues.
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