IT Support Specialist III

Mission Support and Test Services · North Las Vegas

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Are you a highly skilled and motivated IT professional passionate about delivering exceptional technical support and enhancing user productivity within a critical national security environment? The Information Technology Directorate at the Nevada National Security Sites (NNSS) in North Las Vegas is seeking a high-performing individual to join our dynamic Service Desk team as an IT Support Specialist III. In this critical role, you will leverage your expertise to resolve complex technical challenges, optimize IT operations, and contribute to a seamless technology experience for our vital mission.

About Our Team: Our Service Desk is the heart of IT support at the NNSS, dedicated to providing rapid, effective, and customer-centric solutions to support national security initiatives. We foster a collaborative environment where innovation and problem-solving are celebrated, and continuous learning is encouraged. Join us in our mission to empower our users with reliable and cutting-edge technology that underpins the NNSS's crucial contributions to national security.

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Sites (NNSS) for the U.S. National Nuclear Security Administration (NNSA), a semi-autonomous agency within the U.S. Department of Energy (DOE). The NNSS is an enterprise of special-purpose, multi-mission, high-hazard experimentation facilities delivering technical and service solutions in partnership with the National Laboratories. Our collaborative work supports the government’s most important national security missions. (See NNSS.gov for our unique capabilities.) Our 3,000+ 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 Aerospace, Amentum, and HII Nuclear Inc.


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