High-Performance Computing (HPC) (SA2) (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. Job Duties / Responsibilities Provide HPC sustainment support across two geographically dispersed sites. Maintain Linux‑based HPC clusters (RedHat/CentOS/Rocky/Ubuntu) with parallel file systems (Lustre/GPFS) and high‑speed interconnects (InfiniBand/Slingshot). Transition new systems and capabilities into operations (clusters, SMP/MPP, parallel file systems). Support HPC and ABS (ABUNDANTSHIELD) 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. Required Clearance TS/SCI with polygraph. Required Qualifications 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. Compensation Annual salary range: $98,100 – $167,830 (subject to geography, experience, expertise, and education/training). Benefits and Perks 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 40hrs/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 Work Details 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. #J-18808-Ljbffr