Senior HPC Engineer, Classified Computing

Oak Ridge National Laboratory; Oak Ridge (TN); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) and pension plan

Generous vacation and holidays

Job summary

Oak Ridge National Laboratory is seeking a Senior HPC Engineer for Classified Computing to lead the design and management of HPC systems. You will ensure optimal performance and security while collaborating with scientists and IT leadership. The job requires extensive experience in HPC engineering, particularly in classified settings.

Applicants should possess a BS in computer science or a related field and have over eight years of specialized experience with HPC systems, particularly in cluster management and security compliance. The position offers competitive pay and a comprehensive benefits package.

Qualifications

• 8+ years of HPC engineering experience focused on cluster management and performance optimization.
• Knowledge of NIST and DISA STIGs in classified environments.
• Experience with parallel programming frameworks like MPI, OpenMP, and CUDA.

Responsibilities

• Lead design and deployment of HPC systems in a classified environment.
• Monitor performance and troubleshoot bottlenecks.
• Collaborate with scientists and mentor junior engineers.

Skills

HPC engineering

Cluster management

Performance optimization

Linux administration

Scripting (Bash, Python, Ansible)

Education

BS in computer science, engineering, or related field

Tools

SLURM

PBS

Moab

Ganglia

Grafana

Docker

Kubernetes

Ansible

Job description

Senior HPC Engineer, Classified Computing

The Field Intelligence Operations Division invites candidates to apply to join the team as a Senior High Performance Computing (HPC) Engineer for Classified Computing. The role leads design, implementation, and management of HPC systems within a classified environment, collaborating with security teams, scientists, and IT leadership to ensure performance, security, and compliance.

Responsibilities

• Lead the design, deployment, and documentation of HPC systems in a classified environment.
• Guide GPU architecture strategy and identify innovation opportunities.
• Oversee cluster installation, configuration, and management, including job scheduling and resource allocation.
• Ensure compliance with security policies and conduct audits.
• Monitor performance, troubleshoot bottlenecks, and minimize downtime.
• Lead HPC projects, collaborate with scientists, and mentor junior engineers.
• Research and implement improvements to HPC infrastructure and communicate findings.

Basic Qualifications

• BS in computer science, engineering, or a related field with at least eight years of relevant experience (or equivalent).
• Eight years of HPC engineering experience focused on cluster management, parallel computing, performance optimization.
• Experience in classified environments and knowledge of NIST, DISA STIGs.
• Experience with SLURM, PBS, Moab, etc.
• Linux administration and scripting (Bash, Python, Ansible).
• Performance tuning and benchmarking tools (e.g., Ganglia, Grafana).
• Parallel programming frameworks (MPI, OpenMP, CUDA) and InfiniBand.

Preferred Qualifications

• Advanced storage solutions and parallel file systems (Lustre, GPFS, BeeGFS).
• Professional certifications (HPC Professional, Linux+, Security+).
• Leadership and project management skills.
• Strong problem solving and communication.
• Ability to manage multiple priorities in a high‑security environment.
• Federal ATO experience.
• HPC architecture and performance optimization.
• Scientific software development.
• High‑speed networking and parallel file systems.
• Troubleshooting, diagnostics, and technical support.
• Programming & Scripting: Pascal, BASIC, Delphi, Visual Basic, C, C++.
• Systems & Network Administration: Linux (RHEL/CentOS, SUSE, Debian, Ubuntu); Windows (95–10, NT‑Server 2016–2025).
• Networking: Active Directory, TCP/IP, DHCP, DNS, WINS, VPN, Citrix, Terminal Services.
• Monitoring & Management Tools: Nagios, Ganglia, HP BAC, Precise i3.
• Infrastructure & Automation: Puppet, Cobbler, Ansible, Chef, Red Hat Satellite, Kickstart, RPM optimization.
• File Systems & Archiving: Panasas (DirectFlow/panfs), DDN (GPFS), SGI DMF, StorHouse/RFS.
• HPC Tools & Job Scheduling: MOAB/MAUI, Torque, PBS Pro, Windows HPC Scheduler.
• Containerization & GPU: Docker, Kubernetes, Kubeflow, NVIDIA DGX‑1 GPU systems.
• Databases: SQL Server (2000–2008), MySQL, Zope.
• High‑speed networking: Infiniband, Mellanox, OFED, Voltaire, Force10.
• Cybersecurity in HPC/cloud environments.
• Infrastructure as Code (AWS, Terraform, Ansible, Packer).
• Supporting scientific workflows in research environments.

Special Requirements

• Must obtain and maintain a DOE Secret Compartmented Information (SCI) clearance.
• WSAP testing required; random drug testing and possible polygraph testing.
• Must obtain and retain a federal Personal Identity Verification (PIV) card; background investigation required.

Equal Opportunity Employer

ORNL is an equal‑opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.

Benefits Summary

• Competitive pay and benefits including medical, dental, vision, 401(k), pension, life and disability insurance.
• Generous vacation, holidays, parental leave, legal insurance, employee assistance plan, flexible spending accounts, health savings accounts, wellness programs, educational assistance, relocation assistance, and employee discounts.