Senior Linux DevOps Analyst; Senior Applications Analyst

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA). Our MISSION is to help ensure the security of the United States and its allies by providing high‑hazard experimentation and incident‑response capabilities through operations, engineering, education, field, and integration services and by acting as environmental stewards to the Site's Cold War legacy.

Our VISION is to be the user site of choice for large‑scale, high‑hazard, national security experimentation, with premier facilities and capabilities below ground, on the ground, and in the air. (See NNSS.gov for our unique capabilities.) Our 2,750+ professional, craft, and support employees are called upon to innovate, collaborate, and deliver on some of the more difficult nuclear security challenges facing the world today.

• MSTS offers our full‑time employees highly competitive salaries and benefits packages including medical, dental, and vision; both a pension and a 401k; paid time off and 96 hours of paid holidays; relocation (if located more than 75 miles from work location); tuition assistance and reimbursement; and more.
• MSTS is a limited liability company consisting of Honeywell International Inc., Jacobs Engineering Group Inc., and HII Nuclear Inc.

MSTS is seeking an experienced Linux Dev Ops Analyst (Senior Applications Analyst) to support engineers and scientists with the installation, operation, and maintenance of controls and communications systems associated with pulsed power machines designed to interrogate explosively driven physics packages on subcritical experiments (SCEs) at the Principal Underground Laboratory for Subcritical Experiments (PULSE) facility. This position is based in Nevada but requires occasional travel to Los Alamos National Laboratory, Lawrence Livermore National Laboratory, and Sandia National Laboratory prior to the accelerator arriving in North Las Vegas for integration testing and final installation and operation at the PULSE facility located at NNSS.

• Participates in defining software requirements for development, maintenance, and improvements by responding to questions concerning software design and implementation. Takes ownership of technical problems and sees them through to resolution.
• Prepares time and cost estimates and schedules for software development, maintenance, and modification tasks.
• Install, configure, maintain, and troubleshoot RHEL Linux servers/workstations including automated OS imaging.
• Install, configure, maintain, and troubleshoot Dev Ops and software supply chain platforms.
• Install, configure, maintain, and troubleshoot container orchestration platforms.
• Incorporate Dev Sec Ops  cybersecurity best practices.
• System architecture and documentation.
• Develop Git Lab CI/CD pipelines for Dev Ops and AI/ML workflows.
• Liaison between IT and Cybersecurity.
• Collaborate with other National Laboratories and incorporate their technology stacks which may differ from internal standards.
• Install, configure, maintain and troubleshoot Tri‑Lab Operating System Stack (TOSS), a Linux distribution based on RHEL created for high‑performance HPC clusters for laboratories within the National Nuclear Security Administration, allowing multiple smaller systems to emulate an HPC platform.
• Other duties as assigned.

• Bachelor's degree in a computer‑related field or equivalent computer‑related experience with at least 5 years of relevant, progressively responsible experience.
• Demonstrate advanced knowledge of technical principles, theories, standards, practices and procedures in software development or database administration.
• Must obtain and maintain an active Q Clearance.
• Experience handling dependencies in a secure / air‑gapped environment.
• Familiarity with mainstream programming languages (Python, C/C++, etc.) and building/compiling code from source.
• Ability to coach or mentor less senior staff.
• Ability to multitask.
• Familiarity with OT Systems.
• Familiarity with Experimental Physics and Industrial Control System (EPICS).
• Familiarity with Git Lab, JFrog, Ansible,…