Computational and Software Engineering Intern (12 Week Summer 2027 Internship)

* Join Xcimer’s engineering internship program and gain hands-on experience in designing and building cutting-edge laser-driven inertial fusion hardware and software * As an intern, you will be integral to developing the systems needed for the world’s first commercial fusion energy power plant * During this 12-week program at our headquarters in Denver, CO, you’ll work alongside an industry expert mentor to tackle complex, real-world challenges in fields such as structures, mechanisms, optics, pulsed power, computational engineering, plasma physics, and manufacturing * Responsibilities will vary depending on each intern’s are of 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 Benefits -------- * Medical, Dental, Vision * Basic and supplemental life insurance * Paid parental leave * Short and long-term disability * 401(k) with company match of up to 6% * Paid Time Off: 15 days per year based on weekly scheduled hours * 10 paid sick leave * 13 company-paid holidays * Equity for eligible employees * We are seeking interns who are passionate about applying their technical skills, problem-solving abilities, and commitment to quality to drive the future of clean energy! * Strong written, verbal, communication, and interpersonal skills * Application of technical skills outside of the classroom (examples include: extracurricular projects, volunteering, personal projects, laboratory research, or prior internship/work experience) * Ability to work full-time onsite through the duration of the 12 week internship program in Denver, CO * Qualified candidates must be enrolled in a Bachelor’s, Master’s or PhD degree program from an accredited college or university in mechanical engineering, electrical engineer, physics, nuclear engineering, or other related engineering discipline * 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 * Proficiency in CAD software for 3D modeling and simulation * Passion for fusion energy! * Application close date: 12/31/2026