Senior Director, Nuclear Engineering for Fusion Systems

Xcimer Energy; Denver (CO); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

Life insurance

Disability coverage

Parental leave

401(k) with company match

Equity

Paid time off

Job summary

Xcimer Energy, based in Denver, CO, seeks a Director of Nuclear Engineering to lead and grow the Nuclear Engineering discipline, ensuring rigorous practices across programs, facilities, and lifecycles. You will be a technical authority, mentoring engineers and setting standards in a matrix organization.

The role emphasizes technical leadership in radiation transport, safety analyses, and collaboration with program leadership to advance fusion energy initiatives.

Qualifications

• Advanced degree in Nuclear Engineering; PhD preferred.
• 15+ years in nuclear engineering with senior leadership.
• Mentored high-performing technical teams.
• Strong foundation in radiation physics and analytical methods.
• Experience with deterministic and Monte Carlo transport methods.
• Experienced with MCNP/OpenMC or equivalent.
• Skilled in planning schedules, budgets, and metrics.
• Effective in matrix organizations and multidisciplinary teams.
• Excellent written and verbal communication to diverse audiences.
• Authorized to work in the U.S. (citizenship/permanent resident).

Responsibilities

• Build, lead, and grow the Nuclear Engineering Department.
• Develop career paths and technical leadership pipelines.
• Maintain nuclear design basis and standards across programs.
• Resource, scope, and schedule nuclear engineering activities.
• Identify risks early and implement mitigation strategies.
• Oversee radiation transport, shielding, activation and uncertainty analyses.
• Collaborate with Systems, Facilities, Test, and ES&H teams.
• Define long-term capability growth and external partnerships.
• Represent Xcimer in technical forums and with talent.

Skills

Leadership

Radiation physics

Nuclear engineering

MCNP/OpenMC

Communication

Matrix organization experience

Education

Advanced degree in Nuclear Engineering

PhD preferred

Tools

MCNP

OpenMC

Job description

Xcimer Energy, based in Denver, CO, seeks a Director of Nuclear Engineering to lead and grow the Nuclear Engineering discipline, ensuring rigorous practices across programs, facilities, and lifecycles. You will be a technical authority, mentoring engineers and setting standards in a matrix organization.

The role emphasizes technical leadership in radiation transport, safety analyses, and collaboration with program leadership to advance fusion energy initiatives.