Lower Carbon Capital
Lower Carbon Capital

Administrative Assistant

Xcimer Energy

Xcimer Energy

Administration, Education
Denver, CO, USA
Posted on Tuesday, April 2, 2024
Xcimer Energy leverages decades of research on Inertial Fusion Energy (IFE) combined with groundbreaking new laser architecture. Our mission is to deploy fusion power plants to meet global decarbonization goals as fast as possible. Xcimer has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by leading investors, Xcimer is uniquely positioned to deliver limitless, clean, fusion power to combat climate change. Join us in powering a better world with inertial fusion!
As a Administrative Assistant, you will play a critical role in supporting the Xcimer team by working cross functionally providing scheduling, customer service, and event planning support while helping us deliver results on a first of its kind fusion energy system. This role involves frequent engagement with company leadership, external stakeholders, and candidate engagement. It requires a person with a passion for working with people, executive presence, excellent interpersonal skills, and a proven ability to deliver results. We are looking for a people centric Administrative Assistant to apply their organizational expertise, problem solving skills, and dedication to quality to positively impact the future of energy!


  • Provide comprehensive administrative support across all departments of Xcimer, including leadership, recruiting, engineering, and beyond. Tasks include but are not limited to document management, electronic filing and organization, calendar management, recruiting coordination, candidate interaction, travel arrangement, expense report processing, relocation assistance, and event planning.
  • Facilitate project coordination efforts involving multiple internal and external teams, supporting complex projects overseen by project managers.
  • Take charge of intricate travel arrangements, crafting detailed itineraries and agendas to ensure smooth travel experiences for team members.
  • Handle expense reporting tasks on behalf of the assigned team, ensuring accuracy and adherence to company policies.
  • Serve as a liaison between internal departments and external partners on behalf of leadership, fostering effective communication and collaboration.
  • Coordinate logistics for various activities including candidate interviews, new employee orientation, conferences, and events. Assist in the preparation and execution of meetings, conferences, and other business-related gatherings.
  • Maintain the upkeep of conference rooms and common areas, ensuring that equipment is in optimal working condition.
  • Oversee the inventory of office supplies and equipment, managing replenishment and organization as needed.
  • Assist in the preparation of reports, memos, presentations, and other documents as required, demonstrating a keen eye for detail and accuracy.
  • Handle sensitive and confidential information with the utmost discretion and integrity.
  • Provide support for additional tasks as necessary to contribute to the ongoing growth and success of the company.


  • Previous experience in an administrative support role (administrative assistant, executive assistant, recruiting coordinator, etc.) preferably in a startup or fast-paced environment.
  • Proficient in Microsoft Office (Outlook, Word, Excel, and Power Point).
  • Excellent verbal and written communication skills, interpersonal skills, and high customer service capabilities with a keen attention to detail.
  • Proactive problem-solving skills and a willingness to take initiative.
  • Attention to detail and ability to produce quality products with a high level of accuracy.
  • Ability to multitask and prioritize tasks effectively in a dynamic and evolving environment.
  • Demonstrated ability to maintain confidentiality and handle sensitive information with discretion.
  • Ability to earn trust, influence others, and maintain positive and professional relationships.
  • Administrative skills, organizational skills, and problem-solving skills.
  • Comfortable in a fast-paced, dynamic, and ambiguous environment.
  • A positive attitude, with a customer service-oriented approach and a passion for working with people.
  • Must be a U.S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee of granted asylum
Equal Employment Opportunity
Xcimer Energy is proud to be an Equal Opportunity/Affirmative Action Employer and is committed to attracting, retaining, and developing a highly qualified, diverse, and dedicated work force. Xcimer Energy hires and promotes people on the basis of their qualifications, performance, and abilities. We support the establishment and maintenance of a workplace that fosters trust, equality, and teamwork, in which all employees recognize and appreciate the diversity of individual team members. We provide all qualified applicants for employment and employees with equal opportunities for hire, promotion, and other terms and conditions of employment, regardless of their race, color, religion, gender, sexual orientation, gender identity, national origin/ethnicity, age, physical or mental disability, genetic factors, military/veteran status, or any other status or characteristic protected by federal, state, and/or local law. Xcimer Energy will consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state, and local laws. For more information on “EEO Is the Law,” please see here and here.
Benefits Employee Benefits include: Medical, dental, vision, basic and supplemental life insurance, paid parental leave (must be employed at time of birth or adoption), short and long-term disability, 401(k) with a company match of up to 6%. Paid Time Off: 15 days per year based on weekly scheduled hours, 10 paid sick leave, and 13 company-paid holidays for all regular employees (including part-time), fixed-term, and interns. Equity will be granted to eligible employees. Equity is designed to allow employees to share in company results and success.