TerraPower · 13 hours ago
Senior/Lead Administrative Assistant
Kemmerer, WY
Full-time
Onsite
Senior Level, Lead/Staff
$74K/yr - $110K/yr
5+ years expTerraPower is a nuclear technology company focused on raising living standards through innovative nuclear energy solutions. They are seeking a Senior Administrative Assistant to provide administrative support to the Natrium Construction Management team, manage day-to-day activities, and coordinate with various stakeholders.
Clean EnergyCleanTechEnergyNuclear
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 TerraPower 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 TerraPower’s Document Control System
Collect team input for Engineering updates and assist with recurring report production
Maintain updates to Engineering’s electronic collaboration spaces
Track and report Engineering staff’s professional development activities
Coordinate complex domestic and international travel arrangements and logistics
Manage monthly telecommunications reporting
Manage logistics and planning timelines for visitors, events, and conferences
Act as liaison with executive staff, administrative support team, and employee base
Provide administrative support for development of presentation materials for key Engineering activities
Assist both internal and external partners with travel logistics and onsite visits
Manage and develop relationships with external parties including business partners
Assist with coordination of the onboarding of new employees and contractors
Communicate relevant information accurately and in a timely manner
Manage the day-to-day administrative operations of the Engineering Department Managers
Qualification
Required
Exceptional organization and time management skill—able to work independently and prioritize multiple tasks to meet changing deadlines and requests
Demonstrated experience in maintaining confidentiality and privacy during sensitive situations in a dynamic and often changing environment
Technical aptitude to be an effective liaison between departments
Experience providing support and business administration of procedures and processes
Proactive management of details, able to anticipate and solve problems with strong attention to detail
Excellent written and verbal communication skills in the English language, including spelling, punctuation, and sentence structure
High degree of proficiency with Microsoft suite of products (Outlook, Word, PowerPoint, and Excel)
Experience with Atlassian products (Jira, Confluence)
Ability to learn new computer tools
Team player who can assess when to act autonomously and when to coordinate with others or seek leadership input
The successful candidate will possess a high degree of trust and integrity, will communicate openly, and will display respect and a desire to foster teamwork
Preferred
Bachelor's degree is preferred with a minimum of 5 years of related work experience. Relative experience will be considered
Benefits
Competitive Compensation
Salary, eligible to participate in discretionary short-term incentive payments
Comprehensive Medical and Wellness Benefits
Medical
Vision
Dental
Life
Life and Disability
Gender Affirmation Benefits
Parental Leave
401k Plan
Generous Paid Time Off (PTO)
21 days of annually accrued PTO
Generous Holiday Schedule
10 paid holidays
Relocation Assistance
Professional and Educational Support Opportunities
Flexible Work Schedule
Company
TerraPower
TerraPower is a nuclear energy technology firm that focuses on developing a sustainable and economic nuclear energy system.
501-1000 employees
Funding
Current Stage
Late StageTotal Funding
$1.49BKey Investors
Korea Hydro & Nuclear PowerUS Department of Energy
2026-01-20Secondary Market
2025-06-18Series Unknown· $650M
2022-08-15Series A· $830M
Leadership Team
Vanessa Estupinan, MS-HRM
Human Resources Business Partner
Recent News
Bizjournals.com Feed (2025-11-12 15:43:17)
2026-01-23
2026-01-21
2026-01-21
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