Aerojet Rocketdyne Careers

Administrative Assistant 3

Location US-TN-Jonesborough
Job ID
Administrative - Administrative Support
On-Site, Hybrid or Remote?


Aerojet Rocketdyne is a world-recognized aerospace and defense leader providing propulsion and energetics to its space, missile defense, strategic, tactical missile and armaments customers throughout domestic and international markets. We offer a complete line of propulsion products for launch vehicles, missile defense, and advanced hypersonic propulsion. Visit our website at for more information on how our employees Power the Future.


What we can offer you:


Inspiring Company Culture - Our people support each other and work together to leave an indelible impact on our nation’s aerospace and defense legacy. Read more about our culture: Careers | Aerojet Rocketdyne


Rest and Relaxation - 3 weeks of vacation to start plus separate sick allowance. 4/10 schedule providing for longer weekends. Annual week-long holiday company closure, plus company paid holidays.


Comprehensive Health Benefits - Medical, Dental, Vision, Health Savings Accounts, and Wellness


Prepare for the Future - 401(k) with company match


Professional Development - Tuition assistance program, Employee recognition program, and Leadership development program


Employee Resource Groups – Local and Enterprise employee-led volunteer groups to create community, awareness, impact, and to support a culture where everyone belongs. 


Beautiful Campus – Nestled in the beautiful foothills of Northeast Tennessee.


Trusted - Aerojet Rocketdyne is proud to be recognized as America’s Most Trusted Aerospace & Defense Company.  


We are seeking an Administrative Assistant 3 at our Aerojet Ordnance Tennessee facility located in Jonesborough, Tennessee. This position provides overall administrative support to the General Manager and other executive staff members.  The individual must be mature, professional, capable of exercising discretion and maintaining confidentiality. Under limited supervision, and following standardized methods and procedures, the Administrative Assistant performs a variety of clerical and administrative duties that are moderately complex in nature and where judgment and some initiative are required in resolving problems and making recommendations. 


This position may be filled at this level or one level higher.


Essential Job Functions (Including % of Time for Each)

70%   Schedule and prioritize work flow for GM and executive staff; Prepare technical documentation, presentations, standard correspondence, reports, bids and/or proposals; Maintain a calendar for GM and executive staff to include internal and external meetings and travel; Prepare expense reports and check requests for GM and executive staff; Track GM departmental budget; Arrange and organize travel for GM and executive staff; Coordinate and handle some public relations and community engagement.; Manage front office practices, policies and procedures, filing systems and record keeping associated with GM and executive staff; Administer local procurement and travel credit card (P-Card and T-Card) programs; Interpret and follow verbal and written instructions; Understand and implement standard business correspondence, including rules of grammar, sentence structure, punctuation and spelling; Maintain professional telephone and interpersonal skills to effectively interface with all levels of personnel and work in a team environment; Routinely make decisions and exercise some independent action within predetermined limits; Maintain sensitive documents/files for GM and executive staff; Type and proofread a wide variety of reports, letters, and memos.


30% Control scheduling and maintenance of Administrative Conference Room, GM Conference Room, and the AOT Conference Center; Conduct planning and arranging of meals for on-site/off-site meetings; Routinely interact with vendors, contractors, customers, representatives of professional organizations and public agencies; Capable of taking on additional duties such as routine Accounts Payable routines; Maintain and support AOT technical library; Provide assistance in other areas of the facility as required.


High School Diploma or equivalent and five (5) years directly related experience


May be required to obtain and maintain a U.S. Security Clearance at the appropriate level.  Requires U.S. Citizenship. Must also be able to satisfy federal government requirements for access to government information, and having dual citizenship may preclude you from being able to meet this requirement.

  • Prior experience supporting general manager, plant manager and/or executive staff members preferred
  • Additional college courses in a business related field desired
  • Experience in a manufacturing/industrial environment desired
  • Ability to communicate effectively, both verbally and in writing
  • Ability to operate standard office equipment
  • Experience in a manufacturing/industrial environment desired
  • Proficiency in Microsoft Office (Word, Excel, PowerPoint and Outlook)
  • Ability to work effectively in a team environment


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