HR Generalist

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 an HR Generalist, you will play a key role in supporting Xcimer employees by executing core HR functions that enhance our people strategy and ensure compliance with HR policies and best practices. This role requires a proactive and adaptable HR professional who can manage multiple priorities in a dynamic, fast‑paced environment. You will support employee onboarding, new employee orientation, compliance, HRIS administration, create documentation, support learning technologies, and day‑to‑day employee support and service.

We are looking for a people‑centric HR Generalist to apply their organizational expertise, problem‑solving skills, and dedication to quality to positively impact the future of energy!

• Employee Onboarding & New Hire Orientation
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  Assist in onboarding efforts to ensure a seamless transition for new employees, including orientation sessions and integration into company culture.
• Compliance & Policy Development
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  Maintain compliance with employment laws and regulations, develop and update HR policies, and provide guidance on workplace compliance issues.
• HR Systems & Data Analytics
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  Utilize HR data to track workforce trends, analyze key HR metrics, and drive data‑driven decision‑making. Maintain and keep the HRIS up to date and accurate.
• Culture & Engagement Initiatives
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  Lead and support initiatives to promote employee engagement, inclusion, and a positive work environment.
• HR Program Execution
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  Support the implementation of key HR programs, including employee engagement surveys, diversity and inclusion efforts, and leadership development initiatives.
• Serve as a trusted resource for employees and managers, helping maintain a respectful, positive and performance driven workplace.
• Manage and maintain our HRIS and employee records ensuring compliance with all federal, state, and local regulations. Uphold confidentiality and data integrity within the system.
• Own benefit and compensation administration, respond to employee inquiries, and communicate proactively about offerings.
• Coordinate and manage leaves of absence, ensuring clear, timely communication with employees and managers.
• Support performance reviews, employee engagement surveys, and other programs.
• Own employment verifications, unemployment claims, works comp claims, and other employee documentation.
• Learn HR’s current processes, file structures, and workflows. Look for areas to continually improve our team’s efficiency.
• Manage various HR projects and initiatives, collaborating and partnering with partners as needed.
• Maintain and update employee handbooks and HR policies to ensure compliance and cultural alignment.

• Education: Bachelor’s degree
• Experience: 3+ years of progressive HR experience, including compliance, onboarding, and benefits administration.
• Strong understanding of employment laws, HR best practices, and organizational compliance in the State of Colorado. Multi‑state experience is a plus.
• Experience with HRIS (preferably Workday), ATS and other HR tech platforms.
• Experience managing onboarding and new hire orientation programs.
• Ability to multitask, prioritize, and adapt in a fast‑moving, evolving environment.
• Strong problem‑solving skills and ability to build relationships across all levels of the organization.
• Excellent communication skills (both written and verbal) with a keen attention to detail.
• Proficiency in Microsoft Office (Outlook, Word, Excel, and PowerPoint).
• Ability to maintain confidentiality and handle sensitive information with discretion.
• Passion for building culture and fostering a positive employee experience.
• Must be willing to work onsite at our…