Computing; HPC; SA; Government

High-Performance Computing (HPC) Systems Administrator

AT&T Global Public Sector is a trusted provider of secure, IP‑enabled, cloud‑based, network solutions and professional services to the Federal Government. This role supports a large client‑based IT enterprise, installing, configuring, and networking Linux and Windows platforms at a government customer site. The position requires office presence a minimum of five days per week and is located in Columbia, Maryland. No relocation is offered.

• Provide HPC sustainment support across two geographically dispersed sites.
• Maintain Linux‑based HPC clusters (Red Hat/CentOS/Rocky/Ubuntu) with parallel file systems (Lustre/GPFS) and high‑speed interconnects (Infini Band/Slingshot).
• Transition new systems and capabilities into operations (clusters, SMP/MPP, parallel file systems).
• Support HPC and ABS (ABUNDANT SHIELD) SRE teams in accordance with Government policies and procedures.
• Operate and maintain systems/services: monitoring, incident response, troubleshooting, and routine maintenance.
• Install and configure Linux OS, file systems, and TCP/IP networking; troubleshoot OS and application issues.
• Automate and administer via Bash scripting; compile and install software as required.
• Use common operations and observability tooling:
  Jira, Confluence, Grafana, Prometheus, Nagios.
• Support HPC workload and configuration management tooling:
  Slurm, Git, Salt, Ansible.
• Provide user support and escalation/status communication to agency management and internal customers.
• Optimize operations through resource utilization and capacity analysis/planning.
• Apply in‑depth troubleshooting skills across heterogeneous systems.
• Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
• Support the dispatch system and hardware problems and remain involved in the resolution process.
• Harden, patch, and tune Linux/UNIX/Windows systems; implement OS‑level enhancements to improve reliability and performance.

TS/SCI with polygraph.

• B.S. in a technical discipline and five years’ experience as a System Administrator in programs and contracts of similar scope, type, and complexity, or ten years’ experience in lieu of a degree.
• DoD 8570 IAT II level certification required.

Annual salary range: $98,100 – $167,830 (subject to geography, experience, expertise, and education/training).

• Medical/Dental/Vision coverage
• 401(k) plan
• Tuition reimbursement program
• Paid Time Off and Holidays (at least 23 days of vacation each year and 9 company‑designated holidays; pro‑rated when working less than 40 hrs/wk)
• Paid Parental Leave
• Paid Caregiver Leave
• Paid Sick Leave beyond state and local law requirements may be available but is unprotected.
• Adoption Reimbursement
• Disability Benefits (short‑term and long‑term)
• Life and Accidental Death Insurance
• Supplemental benefit programs: critical illness/accident, hospital indemnity, group legal
• Employee Assistance Programs (EAP)
• Extensive employee wellness programs
• Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

Weekly

Hours:

40
Time Type:
Regular

Location:

Columbia, Maryland

AT&T is an equal employment opportunity (EEO) employer and provides reasonable accommodations for qualified individuals with disabilities. AT&T is a fair‑chance employer and does not initiate a background check until an offer is made.