Mid-level Linux Infrastructure Administrator

The role is titled 'mid-level' explicitly in the job summary, which directly maps to the Mid seniority band; no total years of experience are stated.

SOC classification is a genuine judgment call: the role primarily OPERATES and administers existing infrastructure (Linux sysadmin, storage, networking, identity services) which points to 15-1244, but it also involves meaningful automation/scripting (Ansible playbooks, Python/Bash) and container orchestration work that edges toward 15-1252. 15-1244 was chosen as the primary because the core day-to-day work is running and maintaining systems rather than shipping software.

Containerization and container orchestration are listed as required under Key Qualifications with no specific product named; Docker and Kubernetes are captured as the canonical tools for those requirements.

The posting states 'Ability to obtain and maintain a DoD Secret clearance' as a hard requirement under Key Qualifications — candidates must be clearance-eligible (US citizenship also required), so Secret clearance is flagged as required.

The benefits section mentions a hybrid 60/40 arrangement in passing, but the Location section explicitly states 'Primarily on-site in a closed-network research environment,' which governs for a classified airgapped facility; remote is set to false.

LDAP and Kerberos appear together under Preferred Qualifications as part of an IAM bullet; they are listed as alternatives of each other since the posting treats them as a combined identity stack rather than independent requirements.

GPU compute and AI/ML inference workload support appear only under Preferred Qualifications.

Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): NIST SP 800-171.

Requires a Secret clearance — the cleared population is a small fraction of this occupation, so the real candidate pool is materially smaller than the estimate below, which does not model clearance.