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Senior​/Lead Administrative Assistant

Job in Kemmerer, Lincoln County, Wyoming, 83101, USA
Listing for: TerraPower
Full Time position
Listed on 2026-02-05
Job specializations:
  • Administrative/Clerical
    Virtual Assistant/ Remote Admin, Office Administrator/ Coordinator
Job Description & How to Apply Below
Location: Kemmerer

Overview

Title: Senior/Lead Administrative Assistant

Location: Kemmerer, Wyoming, United States

Job Type: Full-time

Description: Senior/Lead Administrative Assistant

Location: Kemmerer, Wyoming, USA

Terra Power is a nuclear technology company based in Bellevue, Washington. At its core, the company is working to raise living standards globally through a more affordable, secure and environmentally friendly form of nuclear energy along with innovations in medical isotopes to improve human health. In 2006, Terra Power originated with Bill Gates and a group of like-minded visionaries who evaluated the fundamental challenges to raising living standards around the world.

They recognized energy access was crucial to the health and economic well-being of communities and decided that the private sector needed to act and create energy sources that would advance global energy deployment. Terra Power's mission is to be a world leader in new nuclear technologies, while developing innovators and future leaders in the nuclear field. As a result, the company's activities in the fields of nuclear energy and related sciences are yielding significant innovations in the safety and economics of nuclear power, hybrid energy and medical applications all for significant human health benefits.

Terra Power is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power landscape and bringing forward the critical production of medical isotopes. Terra Power is an Equal Opportunity Employer. We do not discriminate in hiring based on sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by federal, state, or local law.

In addition, as a federal contractor, Terra Power has instituted an Affirmative Action Plan (AAP) to proactively recruit, hire, and promote women, minorities, disabled persons and veterans.

Senior Administrative Assistant

Located at the Natrium jobsite in Kemmerer, Wyoming, Terra Power is seeking to hire a highly talented and motivated candidate for the position of Sr. Administrative Assistant to the Natrium Construction Management team. This position will provide focused administrative support on key priorities, project deadlines, and administrative activities in support of strategic initiatives. This position will also focus on managing the day-to-day administrative activities for the Construction Executive Team.

Responsibilities
  • Provide support to the Site and Deputy Site Managers' day-to-day activities including calendar administration
  • Ensure proper handling, storage, and retention of all documentation developed on Site and that data required to support Site activities
  • Manage Project Management budgets including coordination with EPC Contractor for office space and office and conference essentials (desks, tables, chairs, etc.)
  • With close coordination with Site and Deputy Site Managers, manage all visitor access to the Natrium Site.
  • Partner with key Engineering stakeholders to support and track administrative workflows under Engineering purview.
  • Coordinate with IT to ensure adequate IT support is available to support all Terra Power Site activities
  • Manage calendar, prioritize, and respond to internal and external requests for participation of the three Natrium Project Directors (Directors of Plant Delivery, Safety Engineering and Analysis, and Nuclear Fuel and Equipment Qualification).
  • Provide as-needed administrative support to Engineering Senior Managers and the Engineering teams.
  • Manage expense tracking and reconciliation and assist with procurement requests.
  • Prioritize, track, develop, and edit internal and external communication including items that are confidential and sensitive in nature.
  • Schedule meetings, coordinate material preparation and logistics, document proceedings, proactively track action items, and ensure work products are accurately captured in Terra Power's Document Control System.
  • Collect team input for Engineering updates and assist…
Position Requirements
10+ Years work experience
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