Demo

Senior Administrative Assistant

Naval Nuclear Laboratory (FMP)
Mifflin, PA Full Time
POSTED ON 7/3/2026
AVAILABLE BEFORE 8/1/2026
Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values: Trust, Empowerment, and Collaboration. Our company promotes a positive culture while ensuring the safety and reliability of our nation's naval nuclear reactors, and training the Sailors who operate those reactors in the U.S. Navy's submarines and aircraft carrier Fleets. Looking for a lifetime career? Apply today!

Job Description

Naval Nuclear Laboratory is seeking a highly organized and detail-oriented Senior Administrative Assistant to join our team. As a Senior Administrative Assistant, you will be responsible for coordinating travel, issuing official correspondence, managing calendars, and performing a variety of other administrative tasks.

Responsibilities:

  • Coordinate travel arrangements for senior management and staff, including booking flights, hotels, rental cars, and other travel-related services.
  • Prepare and issue official correspondence, including letters, memos, and reports, ensuring accuracy, completeness, and compliance with established guidelines and procedures.
  • Manage calendars for senior management and staff, scheduling appointments, meetings, and other events as needed.
  • Answer and screen phone calls and emails, directing inquiries to the appropriate personnel and providing information as needed.
  • Maintain files and records, ensuring that documents are organized and easily accessible.
  • Provide general administrative support, including photocopying, faxing, scanning, and mailing documents, as well as ordering office supplies and equipment.

Required Combination Of Knowledge And Skill

High school diploma or equivalent and a minimum of 4 years of relevant experience; or Associates degree from an accredited college or university in a related field and a minimum of 2 years of relevant experience; or Bachelors degree from an accredited college or university in a related field.

Preferred Skills

  • Strong organizational skills, with the ability to manage multiple tasks and priorities in a fast-paced environment
  • Excellent communication skills, both verbal and written, with the ability to interact effectively with all levels of personnel.
  • Proficiency in Microsoft Office Suite, including Word, Excel, and PowerPoint.
  • Ability to maintain confidentiality and handle sensitive information with discretion.

Compensation And Benefits

  • Health, Dental, Vision & Voluntary Benefits
  • Disability, Life & Accident Insurance
  • 401(k) Savings program & Capital Accumulation Plan
  • Personal & Medical Time Off
  • Paid Parental Leave
  • Flexible Work Schedules
  • Tuition Assistance for Eligible Employees
  • Student Debt Benefit Personal Time Off Sell Program
  • Employee Assistance Program (EAP)
  • Wellness Program
  • Visit us online to view all NNL benefits!

Pay Range

$52,300.00 - $78,500.00 annually

Salary information provided is a general guideline only. Annual salary is based upon candidate experience and qualifications, as well as market and business considerations.

The Naval Nuclear Laboratory is operated for the U.S. Department of Energy (DOE) by Fluor Marine Propulsion, LLC (FMP), a wholly owned subsidiary of Fluor Corporation. Naval Nuclear Laboratory personnel are FMP employees who work at four DOE facilities: Bettis Atomic Power Laboratory, Knolls Atomic Power Laboratory, Kenneth A. Kesselring Site, and Naval Reactors Facility, and at the U.S. Department of Defense-owned Nuclear Power Training Unit-Charleston. FMP employees also have an established presence at numerous shipyards and vendor locations. For nearly 70 years, the Naval Nuclear Laboratory has developed advanced nuclear propulsion technology, provided technical support, and trained world-class nuclear operators to ensure the safe and reliable operation of our nation's submarine and aircraft carrier Fleets. The Naval Nuclear Laboratory is a national asset solely dedicated to the Naval Nuclear Propulsion Program. We rely on the dedication and innovation of our nearly 8000 engineers, scientists, technicians, and support personnel.

All candidates must be U.S. citizens. Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements for access to classified matter. FMP is a government contractor and maintains a drug free workplace and workforce. All candidates must be able to pass a drug test in compliance with FMP company policy and 10 CFR 707. Marijuana is a Federal Schedule I controlled substance and illegal under Federal Law. Therefore, FMP is required to test for marijuana.

Fluor Marine Propulsion, LLC is an Equal Opportunity Employer, including disability/vets. All qualified applicants will receive consideration for employment without regard to race, color, age, sex, religion, national origin, disability, veteran status, genetic information, or any other criteria protected by federal, state, or local law.

Salary : $52,300 - $78,500

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Senior Administrative Assistant?

Sign up to receive alerts about other jobs on the Senior Administrative Assistant career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$59,158 - $74,794
Income Estimation: 
$72,615 - $89,381
Income Estimation: 
$49,359 - $62,131
Income Estimation: 
$59,158 - $74,794

Sign up to receive alerts about other jobs with skills like those required for the Senior Administrative Assistant.

Click the checkbox next to the jobs that you are interested in.

  • Business Communications Skill

    • Income Estimation: $64,578 - $95,209
    • Income Estimation: $67,221 - $87,895
  • Call Screening Skill

    • Income Estimation: $67,221 - $87,895
    • Income Estimation: $72,615 - $89,381
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Naval Nuclear Laboratory (FMP)

  • Naval Nuclear Laboratory (FMP) Idaho, ID
  • Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values: Trust, Empowerment, ... more
  • 8 Days Ago

  • Naval Nuclear Laboratory (FMP) Idaho, ID
  • Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values: Trust, Empowerment, ... more
  • 8 Days Ago

  • Naval Nuclear Laboratory (FMP) Energy, IL
  • Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values: Trust, Empowerment, ... more
  • 8 Days Ago

  • Naval Nuclear Laboratory (FMP) Mifflin, PA
  • Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values: Trust, Empowerment, ... more
  • 8 Days Ago


Not the job you're looking for? Here are some other Senior Administrative Assistant jobs in the Mifflin, PA area that may be a better fit.

  • UPMC Pittsburgh, PA
  • Join the UPMC Hillman Cancer Center team as an Administrative Assistant, Senior! Location: UPMC Hillman Cancer Center, Shadyside – Research Pavilion (Onsit... more
  • 2 Days Ago

AI Assistant is available now!

Feel free to start your new journey!