Linux Systems Administrator

Há 6 dias

Rio Grande do Sul, Brasil Uvation Tempo inteiro

**Job Title**: Senior Linux Systems Administrator (Ubuntu / Red Hat)**:**Location**: Remote (Preferred: IST)**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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