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Added 4 hours ago
MS
Auditor II
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
- $65,249.6 to $97,884.8 USD / year
Must possess a valid driver’s license
Added 4 hours ago
MS
Safeguards & Security Specialist II (Performance Testing)
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $65,249.6 to $97,884.8 USD / year
Must possess a valid driver’s license
Added 6 days ago
MS
Safeguards & Security Specialist II - MC&A Accountant
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $65,249.6 to $97,884.8 USD / year
Must possess a valid driver's license
Added 8 days ago
MS
Principal Traffic Specialist
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
- $101,982.4 to $155,521.6 USD / year
Must possess a valid driver’s license
Added 8 days ago
MS
Senior Scientist - Physicist
Mission Support & Test Services, LLC (MSTS)
Livermore, CA
- $101,524.8 to $152,297.6 USD / year
Must possess a valid driver’s license
Added 8 days ago
Senior Engineer
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV · Mercury, NV
Must possess a valid driver’s license
Added 12 days ago
MS
Mechanical Engineer II
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $83,075.2 to $124,612.8 USD / year
Must possess a valid driver’s license
Added 12 days ago
MS
DAF Deputy System Engineering Manager I
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $126,984 to $203,174.4 USD / year
Added 13 days ago
MS
IT Support Specialist II
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
- $23.17 to $34.76 USD / hour
Must possess a valid driver’s license
Added 13 days ago
MS
Senior Project Manager
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
- $100,755.2 to $151,132.8 USD / year
Must possess a valid driver’s license
Added 13 days ago
IT Support Specialist III
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
Added 13 days ago
MS
Principal Splunk Analyst (Principal Cyber Security Analyst)
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
- $118,560 to $180,814.4 USD / year
Must possess a valid driver's license
Added 13 days ago
IT Support Specialist III
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
Added 14 days ago
MS
Facility System Engineer - Senior Engineer (Mechanical Engineer)
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $101,524.8 to $152,297.6 USD / year
Must possess a valid driver’s license
Added 14 days ago
MS
Facility System Engineer - Engineer II (Mechanical Engineer)
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $83,075.2 to $124,612.8 USD / year
Must possess a valid driver’s license
Added 14 days ago
MS
Principal Safeguards & Security Specialist - Exercise Coordinator
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $101,982.4 to $155,521.6 USD / year
Must have good technical writing (including strong proofing/editing ability with skills to develop and analyze information for studies and reports) · Must possess the ability to work under minimal supervision and be a self-starter
Added 14 days ago
MS
Facility System Engineer - Senior Engineer (Mechanical Engineer)
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $101,524.8 to $152,297.6 USD / year
Must possess a valid driver’s license
Added 14 days ago
MS
RCT Principal Technologist
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $40.14 to $60.21 USD / hour
Must possess a valid driver’s license
Added 14 days ago
MS
Scientist I - Casual
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $67,704 to $101,566.4 USD / year
Must possess a valid driver’s license
Added 14 days ago
MS
Facility System Engineer - Engineer II (Mechanical Engineer)
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $83,075.2 to $124,612.8 USD / year
Must possess a valid driver’s license
Added 14 days ago
MS
Facility System Engineer - Senior Engineer (Electrical Engineer)
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $101,524.8 to $152,297.6 USD / year
Must possess a valid driver's license
Added 14 days ago
MS
Principal Safeguards & Security Specialist - Technical Security Analyst
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
- $101,982.4 to $155,521.6 USD / year
Must possess the ability to understand complex data, terminology, procedures, laws, and regulations · Must possess a valid driver’s license
Added 14 days ago
MS
Senior Emergency Response Specialist - Emergency Management Coordinator
Mission Support & Test Services, LLC (MSTS)
Mercury, NV
- $80,579.2 to $120,868.8 USD / year
Must have experience using Microsoft Office (Word, Excel, and PowerPoint) · Must possess interpersonal communication skills to effectively work with onsite/offsite agencies and organizations in a professional manner
Added 14 days ago
MS
Principal Data Engineer (Prin Applications Analyst)
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
- $118,560 to $180,814.4 USD / year
Must have expert experience in broad range of tools and technology used by NNSS (i.e Microsoft BI Stack (including Power BI), Azure DevOps, Denodo · Must possess a valid driver’s license
Added 14 days ago
MS
Manager I - IT Project Management and Compliance
Mission Support & Test Services, LLC (MSTS)
North Las Vegas, NV
- $126,984 to $203,174.4 USD / year

Mission Support & Test Services, LLC (MSTS)

Auditor II

North Las Vegas, NV, United States

$65,249.6 to $97,884.8 USD / year

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Job details

Pay: $65,249.6 to $97,884.8 USD / year
Experience: Bachelor’s degree in a business-related field and at least 2 years' of professional level experience, or equivalent training and experience.
Posting language: English
Posted: Nov 10, 2026

Original job description

The Nevada National Security Sites (NNSS) is a $1B annual operation performing highly technical national security work for the government; NNSS is managed and operated by Mission Support and Test Services, LLC, a joint venture of Honeywell, Amentum, and Huntington Ingalls Industries. NNSS is seeking a detail-oriented and analytical Auditor with at least 2 years of professional level experience, or equivalent training and experience to support the planning and execution of internal audits across financial, procurement, and business operations. The successful candidate will evaluate internal controls, identify process improvement opportunities, and assess compliance with policies and procedures. This role offers exposure to a broad range of business functions, with a focus on financial and procurement processes.

Key Responsibilities

Participates in financial, operational, and compliance audits in accordance with the annual audit plan.
Assists in developing audit programs, risk assessments, and testing procedures.
Conduct audit fieldwork, including interviews, walkthroughs, data analysis, and testing of controls.
Review financial transactions, reconciliations, accounting records, and supporting documentation.
Examine procurement activities and assess operational processes across business functions.
Documents audit workpapers and findings in accordance with the IIA audit standards.
Completes the assigned audit projects and review the implementation audit recommendations.
Assist in preparing clear and concise audit reports with findings and recommendations.
Communicate audit results and recommendations to audit management and process owners.
Track corrective action plans and implementation.
Assists with special investigations addressing matters involving fraud, waste, or abuse.
Support the Lead Audit Manager in executing special projects and high-priority initiatives, as needed
Maintain professional and technical knowledge by staying current on state-of-the-art practices; and participating in professional societies, such as the IIA, as appropriate.

Due to the nature of our work, US Citizenship is required for all positions.

Bachelor’s degree in a business-related field and at least 2 years' of professional level experience, or equivalent training and experience.
Highly Preferred:
Bachelor's degree in Finance, Accounting, Business, Data Analytics, Information Systems, or a related field from an accredited institution.
Certification or progress toward a related professional certification, such as the below (please upload certificate related documents when applying):
Certified Public Accountant (CPA)
Certified Internal Auditor (CIA)
Certified Information Systems Auditor (CISA)
Certified Fraud Examiner (CFE)
Certified IG Auditor (CIGA).
Audit experience in public accounting or federal government environment preferred.
Exposure to financial, procurement, and business function audits is preferred.
Knowledge of professional auditing standards, principles, practices, and techniques, such as the Global Internal Audit Standards is preferred.
Strong interpersonal skills with demonstrated ability to interact with staff at all levels.
Superior written and oral communication skills with demonstrated experience in preparing and delivering presentations and audit reports.
Demonstrated ability to be innovative and have effective problem-solving skills.
The highest standards of conduct and integrity are expected in past work experience.
Adopt and use AI tools to advance organizational processes and procedures.
Primary work location will be at the Losee Road facility in North Las Vegas, Nevada (candidates must be willing to relocate if not local, relocation package available).
Flexible work schedules available such as 4/10, 5/8, or 9/80's can be negotiated with the manager (hybrid schedule; subject to change).
Pre-placement physical examination, which includes a drug screen, is required. MSTS maintains a substance abuse policy that includes random drug testing.
Must possess a valid driver’s license.

Ability to obtain a HSPD-12 Personal Identity Verification credential under the Department of Energy Order 206.2, ‘Identity, Credential, and Access Management,’ and Supplemental Directive NNSA SD 206.2, ‘Implementation of Personal Identity Verification for Uncleared Contractors.’

MSTS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability, veteran status or other characteristics protected by law. MSTS is a background screening, drug-free workplace.

Annual salary range for this position is: $65,249.60 - $97,884.80.

Starting salary is determined based on the position market value, the individual candidate education and experience and internal equity.

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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