Location: Annapolis Junction, MD (100% on-site)

Clearance: Active TS/SCI with Full Scope Polygraph (within the last 7 years)

About EITR Technologies

EITR Technologies was built by technologists who are still billable today. We know what it means to be on-site and on-contract in the government space, and we built the company we always wished we worked for.

We're small on purpose. You won't be five layers deep in an org chart; you'll work directly with company leadership and senior government stakeholders, and you'll have a real say in our technical direction, tooling, and culture. Good ideas here turn into actual company offerings. We offer strong pay, industry-leading benefits, and a culture with no strings attached: come to our happy hours and game nights if you want, skip them if you don't. We hire adults and treat them like it.

About the Role

We're hiring a Linux Systems Engineer to help operate and sustain large high performance computing environments supporting national security missions. The scale of compute, storage, and interconnect in these environments is unusual even by HPC standards, and the team regularly works problems without a documented answer.

You'll support the full life cycle of HPC clusters and their surrounding infrastructure: keeping production systems healthy, supporting upgrades and modernization, and helping evaluate new hardware in a lab environment before it reaches mission networks. The work involves close collaboration with government stakeholders, engineers across multiple disciplines, and the OEMs whose gear you'll be running.

What You'll Do

• Administer, patch, and troubleshoot enterprise Linux systems (Red Hat, CentOS, SUSE) in production HPC environments

• Support large parallel file systems (Lustre, GPFS) and high-speed interconnects (InfiniBand, Slingshot), including performance and health troubleshooting

• Provide Tier 1/Tier 2 support: triaging tickets, diagnosing node and job failures, and coordinating hardware break/fix with vendors

• Handle node life cycle work at scale: provisioning, imaging, firmware updates, and validation of new hardware

• Script and automate routine tasks (Bash, Python) to keep thousands of nodes consistent

• Maintain security compliance in an accredited environment (STIGs, vulnerability remediation)

• Participate in maintenance windows and system upgrades, and document procedures and runbooks as you go

• Get hands-on with emerging compute, storage, and networking technology through lab evaluations with our vendor partners

Required Qualifications

• Bachelor's degree and 3+ years of experience as a Systems Engineer or Systems Administrator supporting enterprise IT environments, or 8+ years of relevant experience in lieu of a degree

• Strong hands-on Linux administration experience (Red Hat, CentOS, and/or SUSE) — this is non-negotiable

• Experience supporting one or more of the following: HPC clusters, parallel file systems (Lustre, GPFS), high-speed interconnects (InfiniBand, Slingshot), large-scale storage systems, or client/server infrastructure

• Experience providing Tier 1/Tier 2 operational support in a production environment

• DoD 8570 IAT Level II certification (e.g., Security+ CE, CCNA Security, GSEC) — current, or ability to obtain prior to start

• Active TS/SCI clearance with Full Scope Polygraph completed within the last 7 years

Nice to Have

• Experience with HPC workload managers/schedulers (e.g., Slurm, PBS)

• Scripting and automation experience (Bash, Python, Ansible)

• Familiarity with monitoring and metrics platforms (e.g., Nagios, Prometheus, Grafana) at scale

• Experience with hardware life cycle support in large data center environments (racking, cabling standards, firmware management)

• Familiarity with security hardening and compliance in accredited DoD/IC environments (STIGs, vulnerability remediation)

• Experience working directly with OEM vendors on escalations, RMAs, and pre-release hardware evaluation

Growth

This role is a strong fit for someone a few years into their sysadmin career who wants to go deep on HPC. You'll be working alongside senior engineers who have run large mission programs, and at a company our size, the path from "solid engineer" to lead, architect, or customer-facing roles is short and based entirely on performance.