The future of aerospace and defense starts here.
Ursa Major was founded to revolutionize how America and its allies access and apply high-performance propulsion, from hypersonics to solid rocket motors, satellite maneuvering and launch. We design and deliver propulsion and defense systems that solve the most urgent and critical national security demands.
The journey to space starts with the engines.
Ursa Major is bringing a new model to propulsion and defense technology: one where performance and access are no longer constrained by legacy systems. We design, build, and deploy advanced propulsion systems that power national security missions, hypersonic capabilities, and the future of space access.
Our mission requires an extraordinary team; one that will mold tomorrow’s critical technologies while deploying today’s best. We are an intrinsically motivated team with a passion for solving complex technical problems and empowering each other every day, knowing that there is always room for growth.
About The Role
As a critical member of our Digital Operations team reporting to the IT Manager, the HPC Systems Engineer holds a dual mandate: driving the continuous expansion of our High-Performance Computing (HPC) simulation clusters while serving as IT’s core Enterprise Linux Subject Matter Expert.
By taking ownership of our HPC infrastructure, you will directly liberate engineering bandwidth and accelerate propulsion design cycles enabling our solids, liquids, thermal, and structural analysis teams to run complex CFD/FEA workloads faster and at greater scale. Simultaneously, you will partner with IT, DevOps, and Zero-Trust Networking to architect, automate, and harden our enterprise Linux servers across our Colorado and Ohio facilities.
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.
Skills Required
- 5+ years of dedicated experience in Linux systems engineering and infrastructure administration
- Hands-on mastery of enterprise Linux distributions including RHEL, Rocky Linux, or Ubuntu Server
- Experience with kernel tuning, storage management including LVM and ZFS, and network configuration
- Experience building, managing, or scaling HPC clusters, job schedulers such as Slurm or PBS, and distributed MPI/GPU environments
- Strong proficiency in Python, Bash, and Ansible or Terraform for infrastructure automation
- Understanding of system hardening, vulnerability patching, and security controls in CMMC, NIST SP 800-171, DoD, or similar regulated compliance frameworks
- Familiarity with engineering simulation platforms such as ANSYS Fluent/Mechanical, Siemens STAR-CCM+, Abaqus, or MATLAB
- Experience configuring InfiniBand or RoCE fabrics, high-performance parallel file systems, and NVIDIA GPU clusters
- Experience with enterprise hypervisor clusters such as VMware vSphere
- Ability to obtain and maintain a U.S. Government Security Clearance
- Must be a U.S. Person, including a U.S. Citizen or Permanent Resident
What the Team is Saying
Ursa Major Compensation & Benefits Highlights
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Leave & Time Off Breadth — Time off is broad, combining unlimited PTO with two company‑wide shutdown weeks in July and at year‑end that help ensure employees disconnect.
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Healthcare Strength — Core coverage appears comprehensive, with medical, dental, and vision plus HSA/FSA, employer‑paid disability, life, AD&D, and EAP; some listings also cite optional add‑ons such as pet insurance.
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Parental & Family Support — Paid parental and adoptive leave is highlighted across official and third‑party materials as a notable strength.
Ursa Major Insights
What We Do
Ursa Major was founded to address a critical shortfall in the U.S. industrial base and bring a new model to aerospace and defense systems: we design and manufacture the world’s leading propulsion systems for space, hypersonic applications, and missile systems. Our products and technologies require an extraordinary team – a team that will mold tomorrow’s technologies while deploying today’s best. We are an intrinsically motivated team that has a passion for solving problems and empowering each other every day to develop our skills, knowing that there is always room for growth.
Why Work With Us
We believe that each unique team member fuels the creativity necessary to build the world’s best propulsion systems. This is realized as a deeply held commitment to celebrating individuality, hiring talent across all backgrounds and experiences, building a culture of inclusion, and constantly challenging ourselves to improve.
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Ursa Major Offices
OnSite Workspace
Most employees work on-site with some positions allowing hybrid and/or remote work.
