Linux Administrator

Responsibilities

• System Deployment & Maintenance: Install, configure, and maintain Linux distributions (e.g., Ubuntu, CentOS, AlmaLinux) across physical and virtual servers.
• Automation & Scripting: Write and maintain scripts in Bash, Python to automate routine administration tasks and server provisioning.
• System Monitoring & Performance Tuning: Utilize monitoring tools (e.g., Zabbix, Prometheus, Nagios) to proactively identify resource bottlenecks and optimize server performance.
• Security & Patch Management: Apply security patches, maintain firewall configurations, and manage user access permissions to safeguard critical company data.
• Backup & Disaster Recovery: Design and execute regular system backups and disaster recovery plans to ensure 100% data integrity.
• Troubleshooting & Support: Resolve escalated hardware and software issues, and manage work orders through IT ticketing systems

• Maintain wide range Business applications and systems based on Linux: Jira, Conflunece, ERP (EPR (Deploys, Postgres, Java, Tomcat, Zookeeper, Kafka, Logs)), Bitbucket, Crucible, Testrail, Perforce, SVN, Git, Nexus repository (Ubuntu 20,22,24, Almalinux, NPM), Docker (Docker Compose, Swarm, logs, service inspect), Ansible (inventory, playbooks, roles)

• Web site (AWS)
• Asterisk, FreePBX (sip, trunks, routes, IVR, reports calls)
• Test Disaster recovery procedure for all locations.
• Technical communication with client`s engineers
• Keeping internal documentation at the actual state

Requirements

• Education: Bachelor's degree in Computer Science, Information Technology, or equivalent practical experience.
• Core Expertise: Deep understanding of Linux kernel architecture, filesystems, and networking (TCP/IP, DNS, DHCP).
• Configuration Management: Hands-on experience with automation tools like Ansible, Puppet, or Chef.
• Virtualization & Cloud: Familiarity with hypervisors and cloud platforms (e.g., VMware, AWS, Azure, Google Cloud).
• Certifications: Professional credentials like Red Hat Certified System Administrator (RHCSA), CompTIA Linux+, or Linux Professional Institute (LPI) are highly preferred

Key Performance Indicators (KPIs)

• System Uptime: Maintaining high availability across all critical business applications and services.
• Resolution Time: Meeting targeted Service Level Agreements (SLAs) for internal IT support tickets.
• Security Compliance: Ensuring all systems comply with internal security policies and regulatory frameworks.

Benefits

• Working with an international team of world-class professionals on exciting and challenging projects;
• Learning & Development opportunities – mentoring, lectures, participation at industry conferences and events;
• Medical Care package;
• Sensibly flexible working hours;
• Breakfasts, snacks and fruits available during the day, tea and coffee machines;
• Friendly team environment;
• Additional benefits – care bonus to cover health, educational and safety needs.