Administrative Specialist II - Safeguards and Security (S&S) Programs

Mission Support and Test Services, LLC; Mercury (NV); Hybrid; USD 65,000 - 98,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

Pension plan

401k

Paid time off

Paid holidays

Relocation assistance

Tuition reimbursement

Job summary

Mission Support and Test Services, LLC seeks an Administrative Specialist II to support the Safeguards and Security Programs Directorate. The role streamlines administrative operations, enhances program efficiency, and serves as a vital bridge across NNSS Mercury and NLVF in Las Vegas, NV, on a 4/10 schedule.

Hybrid multi-site work requires 2 days/week at the Nevada National Security Site (Mercury, NV) and 2 days/week at the North Las Vegas Facility (NLVF), with strong MS Office skills, editing,

Qualifications

• Bachelor’s degree with 2+ years of professional experience in administrative policies and procedures.
• Experience in editing and developing correspondence for external organizations.
• Strong written and oral communication across management levels.

Responsibilities

• Manage calendars for S&S Program Managers and schedule meetings, reserving rooms.
• Draft, format, finalize and distribute letters, reports, and directives; track approvals.
• Update staff meeting slides weekly.
• Submit inSite articles and NvE announcements for publication.
• Compile accountability data for submittals to Sr. Directorate.
• Maintain employee award lists and manage division funding and events.
• Manage division SharePoint permissions and content.
• Timekeeping administrator: run reports, payroll docs, PANs.
• Coordinate interviews and onboard new hires, handling access requests.
• Coordinate admin activities to meet key deliverables and deadlines.
• Plan and manage diverse administrative and organizational requirements.
• Attend and document meetings as requested.
• Perform procurement requester and Records Coordinator duties.

Skills

Calendar management

Document drafting

Microsoft Office

PowerPoint

Timekeeping

Interviews coordination

Onboarding support

Budget tracking

Education

Bachelor’s degree in related field

Tools

Oracle Fusion

SharePoint

Microsoft Office Suite

Job description

Job Description

We are seeking a proactive and detail-oriented

Job Description

We are seeking a proactive and detail-oriented Administrative Specialist II to provide mission-critical support to the Safeguards and Security (S&S) Programs Directorate. In this dynamic role, you will streamline administrative operations, enhance program efficiency, and serve as a vital operational bridge across key facilities supporting national security missions.

Due to the collaborative and hands‑on nature of the diverse S&S programs, this role features a hybrid multi‑site operational schedule, 2 days/week: Nevada National Security Site (Mercury, NV) and 2 days/week: North Las Vegas Facility (NLVF) (Las Vegas, NV).

Responsibilities

Key Responsibilities

• Manage calendars for S&S Security Program Managers. Schedule and deconflict recurring staff meetings, NFO meetings, and other meetings for directorate. Reserve conference rooms as requested.
• Responsible for generating, tracking, proofing, formatting, finalizing and distributing correspondence letters, reports, directives, and procedures. Track NFO approvals and manage final correspondence package links. Distribute Delegations of Authority and Orders of Succession.
• Update staff meeting PowerPoint slides weekly for meetings.
• Submit inSite articles and Nevada Enterprise (NvE) announcements for publication.
• Compile Accountability Tracking numbers for submittal to Sr. Directorate.
• Maintain award lists for employees: Gift cards, service awards, recognitions, sr. director awards, etc. Manage “non‑re” funding for division. Track budget, process reimbursements, and plan offsite and all‑hands events.
• Manage permissions and content on the division SharePoint.
• Act as timekeeping administrator for division. Run reports, track time entry and supervisor approval, submit Payroll documentation for new employees, generate PANs for employee changes.
• Act as Oracle Fusion Redwood representative for entering employee requisitions into system. Arrange interviews for candidates. Follow new hires through to onboard and assist with access request for new hires
• Responsible for coordinating administrative specialist activities within the S&S Division to ensure key deliverables are submitted on time.
• Plan, execute, and manage a wide variety of administrative, operational and organizational requirements and activities, requiring independent analysis and self-direction.
• Coordinate, attend, and document meetings as requested.
• Perform duties of procurement requester and Records Coordinator for the directorate.

Qualifications

• Bachelor’s degree in related field and at least 2 years’ of professional level experience, which provided a sound working knowledge of administrative policies and procedures, or equivalent training and experience.
• Requires experience in technical editing and developing correspondence documents that are submitted to external organizations.
• Must have effective written and oral communication skills with the ability to interface with all levels of management and internal and external customers.
• Ability to develop relationships as needed to perform work effectively and act as a liaison with other organizations and outside agencies.
• Ability to handle confidential and non‑routine information with discretion and explain policies when necessary.
• Knowledge of basic math, grammar, spelling, and punctuation.
• Must have strong computer and organizational skills, be able to prioritize work and meet deadlines.
• Proficiency in Microsoft Office (Word, Excel, PowerPoint, Outlook).
• Ability to schedule and facilitate meetings utilizing Microsoft Office Team products.
• Must be able to work effectively in a team environment with minimal supervision.
• Able to manage working at multiple sites - The primary work location will be at the Nevada National Security Site (located 65 miles northwest of Las Vegas, Nevada). Work at other locations such as but not limited to the Losee Road facility in North Las Vegas, Nevada is required in support of these functions.
• Hybrid multi‑site operational schedule, 2 days/week: Nevada National Security Site (Mercury, NV) and 2 days/week: North Las Vegas Facility (NLVF) (Las Vegas, NV).
• Work hours for this position will be 4/10’s, Monday – Thursday (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.

MSTS is required by DOE directive to conduct a pre‑employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants offered employment with MSTS are also subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment. In addition, Applicants for employment must be able to obtain and maintain a DOE L‑level security clearance, which requires U.S. citizenship, at least 18 years of age. Reference DOE Order 472.2 , “Personnel Security”. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted.

Department of Energy L Clearance (position will be cleared to this level). Reviews and tests for the absence of any illegal drug as defined in 10 CFR Part 707.4 , “Workplace Substance Abuse Programs at DOE Sites,” will be conducted. Applicant selected will be subject to a Federal background investigation, required to participate in subsequent reinvestigations, and must meet the eligibility requirements for access to classified matter. Successful completion of a counterintelligence evaluation, which may include a counterintelligence-scope polygraph examination, may also be required. Reference 10 CFR Part 709 , “Counterintelligence Evaluation Program.”

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.

About Us

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.