System Administrator

ts (software products) for IBM Consulting and to provide end-to-end software engineering services to our clients that leverage these assets. The Comprehend Learning Management System is the primary IBM Consulting asset in play for this role.

The successful candidate will be responsible for ensuring the security, stability, and performance of our Comprehend infrastructure while leading a range of critical initiatives related to system administration, security updates, and technology implementation.

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.