Engineering Internship Program

Job Description

About Company:
Xcimer Energy is a company dedicated to leveraging decades of research on Inertial Fusion Energy (IFE) combined with groundbreaking new laser architecture to deploy fusion power plants. Their mission is to meet global decarbonization goals as quickly as possible. The company boasts a team of leaders in tough tech, fusion science, and manufacturing, with a strong track record of rapid execution. Supported by leading investors, Xcimer Energy aims to deliver limitless, clean fusion power to combat climate change, ultimately powering a better world.

Job Description:
Xcimer Energy is offering an Engineering Internship Program for the summer, providing a hands-on experience in designing and building cutting-edge laser-driven inertial fusion hardware and software. This 12-week program is based at the company’s headquarters in Denver, CO.

Interns will play an integral role in developing the systems required for the world’s first commercial fusion energy power plant. They will work alongside an industry expert mentor to address complex, real-world challenges.

Multiple internship opportunities are available across various disciplines. Candidates are encouraged to apply to the posting that best matches their background and interests.

Key Areas of Focus & Responsibilities (will vary by intern’s expertise and interests):
• Mechanical design and hardware development
• Mechanical and thermal analysis using finite element analysis
• Systems engineering
• Manufacturing engineering
• Electrical engineering (pulsed power)
• Control systems engineering
• Computational and software engineering (simulations)
• Nuclear engineering
• Optical engineering
• Plasma physics

Qualifications:
• Education: Must be currently enrolled in a Bachelor’s, Master’s, or PhD degree program from an accredited college or university in mechanical engineering, electrical engineering, physics, nuclear engineering, or other related engineering discipline.
• Experience: Demonstrated application of technical skills outside of the classroom (e.g., extracurricular projects, volunteering, personal projects, laboratory research, or prior internship/work experience).
• Technical Skills: Proficiency in CAD software for 3D modeling and simulation.
• Communication: Strong written, verbal, communication, and interpersonal skills.
• Motivation: A passion for fusion energy.
• Availability: Ability to work full-time onsite through the entire 12-week internship program in Denver, CO.
• Eligibility: 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 or granted asylum.

Compensation:
Interns will be compensated hourly based on their academic level:
• Undergraduate intern: $25/hour
• Masters intern: $30/hour
• PhD intern: $35/hour

Benefits (for interns):
• Medical, dental, vision, basic and supplemental life insurance.
• Paid parental leave (if employed at the 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.
• Equity will be granted to eligible employees, designed to allow employees to share in company results and success.

Application Close Date: December 31, 2025.

Hiring Process Note: Xcimer Energy may utilize artificial intelligence (AI) tools to assist with parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools support the recruitment team but do not replace human judgment, and final hiring decisions are always made by humans.