Responsibilities
Design, deploy, expand, and optimize Linux-based HPC clusters, storage systems, and compute nodes supporting mission-critical propulsion analysis.
Administer job schedulers and resource managers (e.g., Slurm, PBS) to ensure fair-share scheduling, efficient queue utilization, and minimal job latency for engineering users.
Partner directly with solids, liquids, thermal, and CFD analysis engineers to integrate, benchmark, and optimize commercial and open-source simulation suites (e.g., ANSYS, Abaqus) and GPU-accelerated workloads (NVIDIA CUDA).
Manage high-throughput storage solutions (e.g., BeeGFS, NVMe-oF, NFS) and high-speed network fabrics (InfiniBand / 100GbE) to eliminate data bottlenecks during large-scale parallel processing.
Act as the primary systems engineer and Level 2/3 escalation point for enterprise Linux systems, hypervisors, and core IT infrastructure.
Automate system provisioning, configuration management, patching, and user onboarding using Ansible, Python, Bash, Terraform, and automated kickstart routines.
Integrate Linux servers and HPC head nodes with enterprise identity platforms (Entra ID, SSSD) for centralized authentication and role-based access control (RBAC).
Implement and maintain system hardening, access controls, patching, and vulnerability management aligned with NIST SP 800-171, CMMC Level 2, and ITAR/CUI data protection requirements.
Deploy metrics, alerting, and telemetry frameworks (e.g., PRTG, Prometheus, Grafana) to proactively monitor node health, cluster temperature, memory usage, and hardware failures.
Maintain clean architectural diagrams, standard operating procedures (SOPs), and system security plans (SSPs) for all Linux and HPC environments.
Minimum Qualifications
5+ years of dedicated experience in Linux systems engineering and infrastructure administration.
Hands-on mastery of enterprise Linux distributions (RHEL, Rocky Linux, or Ubuntu Server) including kernel tuning, storage management (LVM, ZFS), and network configuration.
Demonstrated experience building, managing, or scaling HPC clusters, job schedulers (Slurm, PBS), and distributed MPI/GPU environments.
Strong proficiency in Python, Bash, and Ansible or Terraform for infrastructure automation.
Practical understanding of system hardening, vulnerability patching, and security controls in CMMC, NIST SP 800-171, DoD, or similar regulated compliance frameworks.
Preferred Qualifications
Familiarity supporting engineering simulation platforms (ANSYS Fluent/Mechanical, Siemens STAR-CCM+, Abaqus, or MATLAB).
Experience configuring InfiniBand/RoCE fabrics, high-performance parallel file systems, and NVIDIA GPU clusters.
Experience with enterprise hypervisor clusters (e.g. VMware vSphere).
Ability to obtain and maintain a U.S. Government Security Clearance.
Compensation, Location & Classification
Primary Location: Hybrid (Longmont, CO office)
On-Site Presence: Periodic support at our Berthoud, CO facility and data center colocation in the Denver Tech Center (DTC).
Remote Support: Ongoing support for Ohio facilities.
Colorado law requires us to tell you the base compensation range of this role, which is $108,000 - $135,000, determined by your education, experience, knowledge, skills, and abilities. What we can’t quantify for you are the exciting challenges, supportive team, and amazing culture we enjoy.
Classification: Full-time Exempt
Benefits Include: (Please note, Interns are not eligible for benefits)
Unlimited PTO - Vacation, Sick, Personal, and Bereavement
Paid Parental and Adoptive Leave
Medical, Dental and Vision Insurance
Tax Advantage Accounts (HSA/FSA)
Employer Paid Short and Long Term Disability, Basic Life, AD&D
Additional Benefit Options Including Voluntary Life and Emergency Medical Transport
EAP Program
Retirement Savings Plan - 401k with Company Match
How To Apply
Interested candidates are encouraged to apply by filling out the application below and clicking "Submit Application". This position will be posted for a minimum of 3 days and will remain open until filled or adjusted based on the volume of applicants.
NOTE: Research suggests that women and BIPOC individuals may self-select out of opportunities if they don't meet 100% of the job requirements. We encourage anyone who believes they have the skills and the drive necessary to succeed here to apply for this role.
Must be a U.S. Person (this includes U.S. Citizens and Permanent Residents).
Eligibility to obtain and maintain a U.S. Security Clearance.
We’re an equal-opportunity employer. You will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.
No outside recruiters, please.
