Mitratech · 5 hours ago
Sr. Linux & OCI Administrator (Oracle Linux / RHEL)
United States
Full-time
Remote
Senior Level
$120K/yr - $125K/yr
7+ years expMitratech is a team of innovators focused on building world-class products that simplify operations in various business functions. They are seeking an experienced Sr. Linux & Oracle Cloud Infrastructure (OCI) Administrator to support production applications, focusing on Oracle Linux administration, OCI networking, security, and automation.
B2BBillingCyber SecurityData GovernanceEnterprise SoftwareHuman ResourcesLegalRisk ManagementSoftware
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 on-call rotations
Maintain operational documentation and runbooks
Qualification
Required
7+ years professional experience administering Linux in production (preferably Oracle Linux or closely related RHEL)
Strong Hands-on experience with OCI administration (compute, networking, IAM, security)
Experience supporting Oracle WebLogic Server
Working knowledge of Oracle Database environments
IaC & Automation: Deep proficiency with Terraform (modules, workspaces, remote state, testing) and Ansible (roles, collections, idempotency, vault)
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)
Scripting: Proficiency in Bash
Experience with SFTP and SMTP/mail services
Deployment Experience: Comfortable with both modern (immutable, pipelines, containers) and older practices (in‑place upgrades, change windows, maintenance runbooks)
Troubleshooting: Proven ability to diagnose and resolve complex incidents across OS, network, and platform layers
Documentation & Communication: Clear written/verbal communication; ability to author design docs, runbooks, and RFCs
Preferred
Certifications: Oracle Linux, OCI Architect Professional/Associate, RHCSA/RHCE (or equivalents), Terraform Associate, Ansible Automation
Tooling: Packer, GitHub Actions/GitLab CI/Azure DevOps/Jenkins, HashiCorp Vault, OCI Bastion/Cloud Guard, Security Zones
Containers & Orchestration: Docker, Kubernetes, admission controls, image signing, and runtime policies
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
Good communication and documentation skills
Benefits
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
Pet Insurance
FSA & HSA Options
Employee Assistance Program
Company
Mitratech
Mitratech is a proven technology partner for corporate legal departments, risk & compliance teams, and HR professionals.
1001-5000 employees
H1B Sponsorship
Mitratech has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (3)
2024 (3)
2023 (3)
2022 (2)
2021 (3)
Funding
Current Stage
Late StageTotal Funding
unknownKey Investors
Hg
2021-03-24Acquired
2017-04-04Private Equity
Leadership Team
Rene H. Barreda
Chief People Officer - People, Facilities and IT
Recent News
2026-01-11
2025-12-22
Company data provided by crunchbase