Senior Mechanical Engineer, Fusion Systems Lead

Realta Fusion; Madison (WI); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Equity stock options

Health, dental, and vision insurance

Retirement savings plan

Flexible PTO

Job summary

Realta Fusion is seeking a Senior Mechanical Engineer to lead design and development of fusion tech tied to Hammir-DD, Realta’s reactor-scale platform, ahead of a pilot plant. You will guide mechanical system design, perform analyses, and collaborate across engineering and scientific teams to advance the technology roadmap.

You will mentor junior engineers, coordinate with vendors, and ensure safety and quality standards are embedded in design and fabrication activities.

Qualifications

• BS in Mechanical Engineering, Nuclear Engineering, or related field, plus 5-8 years’ experience
• Experience with 3D CAD design tools (SolidWorks, NX, Creo) and PDM familiarity
• Strong understanding of mechanism design, structural, heat transfer, and thermal analyses; familiarity with ANSYS/COMSOL
• Experience with installation/commissioning of precision scientific, mechanical, cryogenic, hydraulic, plumbing, and vacuum systems
• Ability to supervise small teams and coordinate with researchers, engineers, machinists, and technicians
• GD&T and P&ID proficiency within ASME standards

Responsibilities

• Develop 3D models and technical drawings for beamline and fusion device elements in ultra-high vacuum environments
• Manage full engineering lifecycle from concept to deployment
• Translate concepts into detailed drawings; perform analysis and develop solutions
• Lead mechanical system design, stress analysis, thermal analysis, and fatigue analysis
• Conduct design reviews and generate technical documentation
• Collaborate with vendors and internal resources to fabricate, assemble, test, and validate components
• Provide hands-on support in fabrication and assembly of prototype systems
• Communicate results to project teams and leadership; support programmatic needs
• Contribute to safety standards and implement them within R&D and Engineering
• Foster an inclusive, innovative culture aligned with company values

Skills

3D CAD design

FEM/FEA analysis

Technical leadership

Mech design for vacuum/cryogenics

Education

BS in Mechanical/Nuclear Engineering

MS in Mechanical Engineering (preferred)

Tools

SolidWorks

NX

Creo

PDM

Job description

Realta Fusion is seeking a Senior Mechanical Engineer to lead design and development of fusion tech tied to Hammir-DD, Realta’s reactor-scale platform, ahead of a pilot plant. You will guide mechanical system design, perform analyses, and collaborate across engineering and scientific teams to advance the technology roadmap.

You will mentor junior engineers, coordinate with vendors, and ensure safety and quality standards are embedded in design and fabrication activities.