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Sr. Linux & OCI Administrator (Oracle Linux / RHEL)

2 hours, 14 minutes ago
Canada
Senior
Cloud Engineer
DevOps and Infrastructure
Ansible Azure Bash DHCP DNS Docker GitHub Actions GitLab CI HashiCorp Vault Jenkins Kubernetes Linux Load Balancing Packer SFTP SSH TCP/IP Terraform TLS
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Mitratech

Mitratech

Mitratech specializes in automating processes through innovative solutions and services in compliance, risk management, enterprise HR, and legal operations, empowering organizations to effectively manage risks and scale for future growth.

Professional Services
1K-5K
Founded 1987
$3M raised
View All Jobs 34

Description

  • Administer and support Oracle Linux systems, including patching, tuning, and troubleshooting.
  • Manage OCI resources such as compute instances, VCNs, subnets, routing, and load balancers.
  • Configure and maintain OCI security controls, including IAM, NSGs, security lists, and compartments.
  • Design and troubleshoot OCI networking and connectivity issues.
  • Provision and manage infrastructure using Terraform as infrastructure as code.
  • Support SFTP and mail services, including secure access, monitoring, and troubleshooting.
  • Perform system monitoring, backup coordination, and disaster recovery support.
  • Participate in production support, incident response, and on-call rotations.
  • Maintain operational documentation, runbooks, and technical design materials.

Requirements

  • 7+ years of professional experience administering Linux in production, preferably Oracle Linux or closely related RHEL.
  • Strong hands-on experience with OCI administration, including compute, networking, IAM, and security.
  • Experience supporting Oracle WebLogic Server.
  • Working knowledge of Oracle Database environments.
  • Deep proficiency with Terraform, including modules, workspaces, remote state, and testing.
  • Experience with Ansible, including roles, collections, idempotency, and Vault.
  • Strong understanding of Linux systems topics such as kernel, systemd, SELinux/AppArmor, LVM/filesystems, iSCSI/NFS, SSH, and hardening.
  • Solid networking knowledge, including TCP/IP, routing, DNS, DHCP, load balancing, proxies, firewalls/security groups, and PKI/TLS.
  • Proficiency in Bash scripting.
  • Experience with SFTP and SMTP/mail services.
  • Comfort working with both modern deployment practices and older operational processes such as in-place upgrades, change windows, and maintenance runbooks.
  • Proven ability to troubleshoot and resolve complex incidents across OS, network, and platform layers.
  • Clear written and verbal communication skills, including the ability to author design docs, runbooks, and RFCs.
  • Preferred certifications such as Oracle Linux, OCI Architect Professional/Associate, RHCSA/RHCE, Terraform Associate, or Ansible Automation.
  • Preferred experience with tools such as Packer, GitHub Actions, GitLab CI, Azure DevOps, Jenkins, HashiCorp Vault, OCI Bastion, Cloud Guard, and Security Zones.
  • Preferred experience with Docker, Kubernetes, admission controls, image signing, and runtime policies.
  • OCI certifications preferred.
  • Experience with monitoring tools and CI/CD pipelines preferred.
  • High availability and disaster recovery experience preferred.

Interested in this position?

Apply directly on the company website

Apply Now

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