Linux Administrator

Description

Job Summary: A professional responsible for the administration, support, maintenance, and optimization of Linux platforms in critical enterprise environments, ensuring availability and security. Key Highlights: 1. Administration and optimization of critical Linux platforms. 2. Incident response and infrastructure improvements. 3. Support in automation and implementation of security best practices. Join Stefanini! At Stefanini, we are more than 30\.000 geniuses, connected from 41 countries, doing what they love and co\-creating a better future. **Responsibilities and Duties** A professional responsible for the administration, support, maintenance, and optimization of Linux platforms within critical enterprise environments. Responsibilities include stable server operations, incident response, support for infrastructure improvements, and execution of preventive and corrective activities to ensure system availability, performance, and security. * Administer Linux servers in production and non-production environments. * Perform installation, configuration, updates, and hardening of Linux operating systems. * Monitor server performance, availability, and capacity. * Respond to incidents, requests, and issues related to Linux platforms. * Conduct troubleshooting at the operating system, service, and connectivity levels. * Manage permissions, users, processes, services, and file systems. * Support operational task automation through scripts or administration tools. * Apply security, continuity, and backup best practices. * Document implemented changes, procedures, and solutions. * Collaborate closely with infrastructure, network, security, and database teams. **Requirements and Qualifications** * Technical, technological, or professional education in Systems Engineering, Electronics, Telecommunications, or related fields. * Minimum 2–3 years of experience in Linux system administration. * Proficiency in enterprise Linux distributions, preferably Red Hat, CentOS, Oracle Linux, or SUSE. * Knowledge of service management, administrative commands, permissions, logs, and processes. * Experience in monitoring, troubleshooting, and server administration. * Basic scripting skills in Bash or Shell. * Fundamental knowledge of operating system security. * Banking or high-availability environment experience is desirable. Desired Competencies * Attention to detail. * Analytical and problem-solving ability. * Teamwork. * Sense of urgency. * Effective communication. **Additional Information** Looking for a place where your ideas shine? With over 38 years of experience and a global presence, Stefanini transforms tomorrow—together. Here, every action matters and every idea can make a difference. Join a team that values innovation, respect, and commitment. If you are a disruptive individual, committed to continuous learning, and innovation is in your DNA, then we’re exactly what you’re looking for. Come and build a better future—with us!