Mechanical Engineer (Vacuum Systems)

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 Vacuum Systems Mechanical Engineer, you will lead the design, integration, and operation of vacuum systems for rare-gas/halide (excimer) lasers used in IFE power generation. Your work will begin with prototype systems and continue through the design and demonstration of power-producing IFE reactors. You will ensure that vacuum hardware meets flow and performance requirements throughout the product development lifecycle in a dynamic R&D environment. We are looking for our engineers to apply their technical expertise, problem solving skills, and dedication to quality to positively impact the future of energy!

• Develop and specify pump-down and vent procedures to meet vacuum system flow requirements.
• Perform analyses and calculations to predict and optimize flow architecture functionality, including pressure drop, flow budgeting, humidification, and gas purity.
• Ensure functional integration of vacuum architectures and subsystems through analysis, documentation, and machine testing.
• Manage pressure and vacuum vessel certifications, proof-tests, and compliance with code standards.
• Lead design efforts for prototype systems and subsystems, including Preliminary and Final Designs.
• Troubleshoot escalations and derive practical recommendations for improvements.
• Collaborate with mechanical, laser, pulsed power, and optical engineering teams throughout the design and development process.
• Support procurement of vacuum-related hardware for laser amplifiers and optical conditioning equipment.
• Oversee and assist with assembly, shakedown, and testing of vacuum systems, laser amplifiers, and ancillary equipment.
• Provide operational support for vacuum systems and equipment.
• Contribute to scaling designs for power-producing IFE reactors and participate in concept studies for IFE applications and beyond.

• Education: B.S. in Mechanical, Nuclear, Aerospace Engineering, or related field.
• Experience: 3 years in mechanical engineering, with a focus on vacuum system design for complex hardware (preferred industries include fusion energy, nuclear, lasers, aerospace, or defense).
• Proficiency with 3D CAD software (SolidWorks preferred).
• Working knowledge of Finite Element Analysis (FEA).
• Experience with complex integrated system design (e.g., pulsed power, lasers, opto-mechanical systems, fusion energy, aerospace, or defense).
• Strong problem-solving skills and a hands-on approach to troubleshooting and testing.
• Interdisciplinary engineering experience is a plus.
• 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 

• Startup experience preferred.

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

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.

Salary : $8,500 - $14,800