Vacuum Systems Engineer – Fusion Laser Prototyping Equity

Xcimer; Denver (CO); On-site; USD 95,000 - 130,000; Full time

Benefits offered by this job

Medical, dental, and vision coverage

Life insurance

Short- and long-term disability

Parental leave

401(k) with company match

Equity participation

Paid time off and company holidays

Job summary

Xcimer Energy, headquartered in Denver, CO, is seeking a Vacuum Systems Mechanical Engineer to lead the design, integration, and operation of vacuum systems for excimer lasers used in inertial fusion energy power generation. You will drive prototype development, ensure systems meet performance targets, and collaborate with laser, pulsed power, and optical teams to push energy solutions forward.

The role is full-time and onsite at our Denver HQ, with responsibilities spanning design, testing,

Qualifications

• B.S. in Mechanical, Nuclear, Aerospace Engineering.
• 3+ years in mechanical engineering with vacuum-system design.
• U.S. citizenship, permanent resident, or eligible to work in the U.S.

Responsibilities

• Develop and specify pump-down and vent procedures to meet vacuum flow requirements.
• Analyze and optimize flow architecture: pressure drop, flow budgeting, humidification, gas purity.
• Design equipment using NX CAD.
• Collaborate with vendors for custom and off-the-shelf devices and instruments.
• Select gas-analysis instruments such as RGAs and FTIR.
• Coordinate with controls team on device integration.
• Ensure vacuum architectures and subsystems meet codes and are properly tested.
• Lead design efforts for prototypes and final designs.
• Troubleshoot escalations and propose practical improvements.
• Collaborate with mechanical, laser, pulsed power, and optical engineers throughout the process.
• Support procurement and assembly of vacuum hardware for laser systems.

Education

B.S. in Mechanical, Nuclear, Aerospace Engineering

Tools

NX CAD

RGAs

FTIR

FEA

Job description

Xcimer Energy, headquartered in Denver, CO, is seeking a Vacuum Systems Mechanical Engineer to lead the design, integration, and operation of vacuum systems for excimer lasers used in inertial fusion energy power generation. You will drive prototype development, ensure systems meet performance targets, and collaborate with laser, pulsed power, and optical teams to push energy solutions forward.

The role is full-time and onsite at our Denver HQ, with responsibilities spanning design, testing,