IBM System Administrator 

Romania, Bucharest 

490643445

Responsibilities

• Infrastructure Management: Oversee and maintain the infrastructure without service disruptions, managing both virtualized and containerized servers leveraging technologies such as LXD/LXC and HAProxy.
• Security and Compliance: Lead security tasks, including audits, updates, and patch management, ensuring compliance with processes and procedures outlined in our Technical Operations Manual (TOM) and Data Processing Agreement (DPA).
• Technology Implementation: Implement and migrate to new technologies, collaborating with development teams to support application launches for IBM and its customers.
• Database and Application Support: Manage database maintenance across various platforms, including MySQL, MariaDB, and MongoDB. Oversee the installation and setup of learning solutions like Moodle, Joomla, and Drupal.
• Team Leadership: Coach and mentor junior Linux administrators on installation, configuration, and maintenance of services on critical platforms including Apache Web Server, Tomcat, DB2, MySQL/MariaDB, MongoDB, nginx, naemon, eXtplorer, piwik, etc.
• Performance Tuning and Monitoring: Design, develop, and implement infrastructure monitoring and reporting tools. Tune performance to ensure high availability and reliability of all infrastructure components.
• Automation and Documentation: Develop automation strategies and maintain configuration management solutions. Document technical implementations and create user guides for new tools and technologies.
• Support and Troubleshooting: Provide support for a large number of developers working on new applications, while troubleshooting issues with customers and data center operators. Respond to JIRA problems efficiently.

Required Technical and Professional Expertise

• Experience:
  • Extensive experience with Linux servers in virtualized environments using command-line interface.
  • Strong knowledge of storage types, particularly with ZFS and CEPHfs.
  • Proficient in DNS management and experience with Kubernetes at the Certified Kubernetes Administrator (CKA) level.
• Technological Expertise:
  • Hands-on experience with containerization technologies, especially OpenShift and Kubernetes.
  • Familiarity with log tracing and a basic understanding of PHP and Python.
  • Proficient in bash scripting and cron job management.
  • Experience with SSL configuration in an SNI environment and securing internet-facing servers.
  • Experience with installing, configuring, and maintaining services such as Apache Web Server 2.4, tomcat, DB2, MySQL/MariaDB, MongoDB, nginx, naemon, eXtplorer, piwik
• Developer Support:
  • Proven track record of supporting developers working with custom applications (PHP, Java, Node.js, npm).
  • Familiarity with configuring load balancing, firewalls, iptables
  • Proficient with network tools such as iptables, Linux IPVS, HAProxy, etc.
• Virtualization and Containerization:
  • Significant experience with virtualization technologies such as Xen and LXC/LXD operations on Ubuntu server hosts is a MUST
  • Ability to build and monitor services on production server
  • Knowledge of server and switch hardware

Preferred Technical and Professional Expertise

• LMS and CMS Administration (Moodle, Joomla, Drupal) is a plus.
• Good understanding of server and switch hardware is advantageous.
• Ability to manage passwords and support customers with software installations.
• Ability to work remotely with a globally diversified team and adjust work hours as needed.
• Commitment to continual learning and adapting to new technologies while managing legacy systems.
• CKA or LPIC certification is a plus.