Senior Linux System Administrator; Hybrid

Responsibilities

• The Linux Administrator is responsible for the sustainment and maintenance of our core servers Linux within a Bare Metal infrastructure to appropriate standards and best practices in a fast-paced work environment.
• Their responsibilities will include administering system-level procedures; patch management; service layer application; deployment creation; redundancy management, and certificate management.
• Work with developers to build containerization that promotes automated, continuous integration and accelerates delivery of new products and services.
• Install upgrades, configure, test, and support system software.
• Some on-site duties include racking devices, cabling, and deploying new systems in multiple data centers. Able to lift 40lbs.
• Perform configurations and adjustments to enhance system performance.
• Perform automated and manual backup and restorative processes.
• Ensure the necessary security procedures are implemented and enforced across their work.

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 3 years of prior relevant experience, or an Advanced Degree in a related field and 2 years relevant experience, or in absence of a degree, 7 years of relevant experience.
• Experience with the Linux CLI, debugging tools, and network stack.
• Working knowledge of core networking, subnetting, firewalls, and routing.
• Proficient in configuration, troubleshooting, installation, operation, maintenance, and system administration of multiple Linux distros such as RHEL and Ubuntu.
• Ability to create shell programs and utility scripts.
• Ability to troubleshoot and resolve system hardware, software, and connectivity issues.
• Ability to work independently in an international, cross-functional team environment, including occasional off‑hours tasks and meetings.
• Ability to multi‑task, prioritize workload, and successfully handle competing deadlines.
• Must be authorized to work in the U.S. without sponsorship now or in the future.
• Must be a U.S. Citizen.
• Ability to support a hybrid (primarily on site) schedule at the Annapolis Office.

• Experience with IBM MQ.
• Experience with Docker, Kubernetes, and containerization.
• Experience with storage appliances (TrueNAS, FreeNAS) with a focus on NAS and iSCSI protocols.
• Ability to support a 24×7 rotating on‑call schedule will be required in this position.
• Occasional travel, as needed, less than 20 days a year.
• Experience working with Configuration Management Systems (git in particular).
• Experience with Solaris and ZFS.