Sr. Linux & OCI Administrator (Oracle Linux / RHEL)
RemoteSeniorNACloud ComputingOffice AdministratorEducation AdministratorBashTerraformAnsibleVaultJenkins
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Requirements
- 7+ years professional experience administering Linux in production (preferably Oracle Linux or closely related RHEL).
- 7+ years
- Linux
- Oracle Linux
- Strong Hands-on experience with OCI administration (compute, networking, IAM, security)
- OCI administration
- Experience supporting Oracle WebLogic Server
- Oracle WebLogic Server
- Working knowledge of Oracle Database environments
- Oracle Database
- IaC & Automation: Deep proficiency with Terraform (modules, workspaces, remote state, testing) and Ansible (roles, collections, idempotency, vault).
- IaC & Automation:
- Terraform
- Ansible
- Systems Expertise:
- Systems Expertise:
- Kernel, systemd, SELinux/AppArmor, LVM/filesystems (xfs/ext4/btrfs), iSCSI/NFS, SSH/hardening.
- Package and patch management (yum/dnf, repo mirrors, Ksplice), vulnerability management, and baseline hardening (CIS/STIG).
- Solid understanding of Networking Fundamentals: TCP/IP, routing, DNS, DHCP, load balancing, proxies, firewalls/security groups, PKI/certificates (TLS).
- Networking Fundamentals:
- Scripting: Proficiency in Bash
- Scripting:
- Experience with SFTP and SMTP/mail services
- SFTP and SMTP/mail services
- Deployment Experience: Comfortable with both modern (immutable, pipelines, containers) and older practices (in‑place upgrades, change windows, maintenance runbooks).
- modern (immutable, pipelines, containers)
- older practices (in‑place upgrades, change windows, maintenance runbooks)
- Troubleshooting: Proven ability to diagnose and resolve complex incidents across OS, network, and platform layers.
- Troubleshooting:
- Documentation & Communication: Clear written/verbal communication; ability to author design docs, runbooks, and RFCs.
- Documentation & Communication:
- Certifications: Oracle Linux, OCI Architect Professional/Associate, RHCSA/RHCE (or equivalents), Terraform Associate, Ansible Automation.
- Certifications:
- OCI Architect Professional/Associate
- Tooling: Packer, GitHub Actions/GitLab CI/Azure DevOps/Jenkins, HashiCorp Vault, OCI Bastion/Cloud Guard, Security Zones.
- Tooling:
- Containers & Orchestration: Docker, Kubernetes, admission controls, image signing, and runtime policies.
- Containers & Orchestration:
- OCI certifications
- Experience with monitoring tools and CI/CD pipelines
- High availability and disaster recovery experience
- Strong troubleshooting skills
- Ability to work in production-critical environments
- production-critical environments
- Good communication and documentation skills
Responsibilities
- Administer and support Oracle Linux systems (patching, tuning, troubleshooting)
- Oracle Linux
- Manage OCI resources: compute, VCNs, subnets, routing, load balancers
- OCI resources
- Configure and maintain OCI security (IAM, NSGs, security lists, compartments)
- OCI security
- Design and troubleshoot OCI networking and connectivity issues
- OCI networking
- Provision and manage infrastructure using Terraform (IaC)
- Terraform (IaC)
- Support SFTP and mail services (secure access, monitoring, troubleshooting)
- SFTP and mail services
- Perform system monitoring, backup coordination, and DR support
- Participate in production support, incidents, and on-call rotations
- production support
- Maintain operational documentation and runbooks
Benefits
- Mitratech remains committed to equitable and transparent pay practices. Final base salary offered may vary from the range listed and will be determined after carefully considering multiple factors during the hiring process, including location, relevant experience and education, required competencies and skill proficiency level, and review of internal equity. We encourage candidates to apply even if they may not meet all the listed requirements.This role can be performed 100% remotely within the U.S. Anticipated base salary: $120,000 - $125,000 USD Annually Total compensation includes US employee benefits and annual bonus eligibility.Benefits we offer:
- Anticipated base salary: $120,000 - $125,000 USD Annually
- Health, Dental & Vision Insurance
- 401 (k) + Employer Match
- Unlimited PTO + 11 Paid Holidays + 4 Annual Paid Global Wellness Days Off
- STD, LTD & Group Life Insurance
- Paid Parental Leave
- FSA & HSA Options
- Employee Assistance Program
- Career Advancement & Professional Development Opportunities
- Employee Recognition
- LinkedIn Learning Platform
- Mitratech is proud to be an EEOE, M/F/D/V, and we are committed to diversity both in practice and spirit at the corporate level. Mitratech participates in the Electronic Employment Verification Program. E-Verify is an Internet-based system that compares information from an employee’s I-9 to data from the U.S. Department of Homeland Security and Social Security Administration Records. To learn more, visit: everify.com
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