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Sr. Linux & OCI Administrator (Oracle Linux / RHEL)
Mitratech
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toronto, Canada
Location
toronto
Posted
May 27, 2026
Commute
Local Area
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Job Description
Job Overview
We are seeking an experienced Sr. Linux & Oracle Cloud Infrastructure (OCI) Administrator to support a production application hosted on OCI. The role focuses on Oracle Linux administration, OCI networking and security, Terraform-based automation, and operational support for SFTP and mail services.
Essential Duties & Responsibilities
- Administer and support Oracle Linux systems (patching, tuning, troubleshooting)
- Manage OCI resources: compute, VCNs, subnets, routing, load balancers
- Configure and maintain OCI security (IAM, NSGs, security lists, compartments)
- Design and troubleshoot OCI networking and connectivity issues
- Provision and manage infrastructure using Terraform (IaC)
- Support SFTP and mail services (secure access, monitoring, troubleshooting)
- Perform system monitoring, backup coordination, and DR support
- Participate in production support, incidents, and onβc...