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Salary
$200k – $250k per year
Location
In office (Denver)
Seniority
Staff · 10+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 30, 2026. First seen by Alion on Apr 29, 2026. Xcimer Energy scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Xcimer Energy is a Denver-based company developing laser-driven inertial fusion power and high-energy laser systems for air defense, built around large electron-beam-pumped excimer lasers. In 2024 it began building Phoenix, its first high-energy laser system, in its Denver laser bay, it has had a fusion power plant preconceptual design milestone approved by the US Department of Energy, and RTX has invested in it to develop directed energy technology. It hires optical, laser, pulsed power and nuclear engineers, physicists and materials scientists, scientific software and data engineers, technicians, quality and supply chain leaders, and summer interns.

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!

This is a full-time, onsite role based at our headquarters in Denver, CO.

As the Program Element Lead of Fusion Systems, you will apply your skills to define, plan, and deliver a hundred million to billion-dollar class engineering program from concept through completion, overseeing cross-functional teams to ensure technical excellence, budget adherence, and timely execution. 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!

Responsibilities

  • Oversee and accountable for the design, planning, and execution strategy of a large-scale, hundred million to billion-dollar class program, ensuring alignment with organizational objectives.
  • Provide day-to-day leadership to matrixed engineering, science, and operations teams, maintaining technical integrity and quality standards.
  • Lead fusion system architecture, including the chamber, blanket, and supporting systems from conceptualization and requirement definition to delivery and plant integration.
  • Direct procurement activities and vendor management for long-lead, critical-path fusion system components.
  • Manage the transition from conceptual design to detailed design, fabrication, construction, assembly, and commissioning.
  • Partner with safety, licensing, and regulatory teams to ensure compliance with applicable nuclear, environmental, and industrial safety frameworks.
  • Manage project budgets, resource allocation, and schedules, implementing proactive risk mitigation and reporting on performance metrics.
  • Collaborate with senior leadership and stakeholders, communicating program status,

    risks, and opportunities for continuous improvement.

Qualifications

  • Education: BS in physics, nuclear engineering, mechanical engineering, electrical engineering or related technical field.
  • Experience: 10+ years leading large, complex programs (billion-dollar scale preferred) within a nuclear and engineering-intensive environment (nuclear energy, fusion facilities, particle accelerators, space and defense, etc.)
  • Proven track record of guiding large-scale technical teams through all phases of technical program delivery.
  • Experience maturing TRLs from concept through prototype.
  • Familiarity with power extraction systems in the context of power plant engineering and design.
  • Familiarity with safety basis development and nuclear safety design and construction frameworks.
  • Exceptional communication and stakeholder management skills, with the ability to influence at all levels of the organization.
  • Demonstrated proficiency in one or more core engineering disciplines, such as Nuclear, Aerospace, Power or Mechanical.
  • 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.

Desired

  • Advanced degree (Master’s or Ph.D.) in a relevant engineering field.
  • Experience with design and construction of one of a kind prototype systems in a nuclear environment.
  • Familiarity with regulatory and compliance frameworks for high-value engineering projects and with NRC regulations.
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