Linux Systems Administrator

Há 8 horas

Rio Grande do Sul, Brasil Uvation Tempo inteiro

**Job Title**: Senior Linux Systems Administrator (Ubuntu / Red Hat)**:
**Location**: Remote (Preferred: IST)
**Employment Type**: Contract part time (4 IST Hour/Day )
**Experience Required**: 10+ years (Senior Level)
**Department**: Infrastructure & Cloud Operations
**Reports To**: Infrastructure Lead / DevOps Manager

**Position Overview**:
We are seeking a **Senior Linux Systems Administrator** experienced in **Ubuntu and Red Hat Enterprise Linux (RHEL)** environments. The role involves managing and optimizing large-scale Linux server infrastructure across production and development environments, ensuring uptime, reliability, and security.

This position will closely collaborate with DevOps, Network, and Software teams to support mission-critical systems, implement automation, and streamline infrastructure management processes.

**Key Responsibilities**:

- Manage, monitor, and maintain **Ubuntu and Red Hat Linux** servers (production and staging).
- Perform system upgrades, kernel updates, patch management, and performance tuning.
- Implement and manage **user access, security policies, and backup/recovery strategies**.
- Troubleshoot and resolve hardware, OS, and network-related issues.
- Maintain configuration management and deployment pipelines using **Ansible, Puppet, or similar tools**.
- Monitor system health and resource utilization; ensure optimal uptime and performance.
- Collaborate with DevOps and Cloud teams for environment provisioning (AWS, Azure, or on-prem).
- Manage **server hardening, SSH configuration, SSL certificates**, and OS-level security compliance.
- Participate in capacity planning, disaster recovery, and incident response activities.
- Create and maintain detailed system documentation, SOPs, and audit reports.

**Required Skills & Experience**:

- 5+ years of hands-on experience in **Linux system administration (Ubuntu & Red Hat)**.
- Strong command of **Bash scripting** and automation tools (e.g., Ansible, Terraform, Shell, or Python basics).
- Experience with **monitoring tools** such as Nagios, Zabbix, or Prometheus.
- Solid understanding of **networking fundamentals (DNS, DHCP, NFS, SSH, firewalls)**.
- Experience with **virtualization and containerization technologies (VMware, KVM, Docker, etc.)**.
- Strong troubleshooting skills with system logs, kernel issues, and service failures.
- Familiarity with **version control (Git)** and **CI/CD pipeline environments**.
- Exposure to **cloud platforms** (AWS, GCP, Azure) is an added advantage.
- Excellent documentation and communication skills; ability to support global teams.

**Preferred Qualifications**:

- Red Hat Certified System Administrator (**RHCSA**) or Engineer (**RHCE**) certification.
- Experience managing **high-availability clusters**, load balancing, and RAID management.
- Previous experience in **enterprise-scale infrastructure environments** or tech product companies.

**Soft Skills**:

- Strong ownership and accountability mindset.
- Detail-oriented with a proactive approach to issue prevention.
- Excellent communication and coordination with cross-functional teams.
- Ability to handle pressure and maintain SLAs in critical environments.

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