Mechanical Engineer: Reactor Design & Deployment (Hybrid)

Nano Nuclear Energy, Inc.; Oak Brook (IL); Hybrid; USD 85,000 - 105,000; Full time

Benefits offered by this job

Medical, dental, vision & life ins.

401(k) with company match

Unlimited PTO

Paid holidays and parental leave

Mentorship & professional development

Engineering leadership development

Job summary

NANO Nuclear Energy, Inc. is seeking a Mechanical Engineer to join our Reactor Engineering team and contribute to developing advanced nuclear reactor technology. You will own critical mechanical components and collaborate across disciplines to bring designs from concept to deployment.

This opportunity offers exposure to the complete lifecycle of reactor development and the chance to work with experts in reactor design, safety analysis, and operations in a highly technical environment.

Qualifications

• 1–3+ years in mechanical systems design, ASME code experience.
• Proficiency in CAD tools: NX or SolidWorks.
• Experience with stress, fatigue, fracture mechanics, thermal-hydraulic analysis.
• Strong technical writing and documentation skills.

Responsibilities

• Mechanical design and development of reactor-internal hardware, pressure-retaining components, balance-of-plant equipment.
• Prepare design basis documents, system design descriptions, P&IDs, technical specifications, engineering reports, and regulatory submissions.
• Materials and manufacturing input: selecting materials, fabrication, welding, QC requirements.
• Interpret and apply ASME Boiler & Pressure Vessel Code, Section III, Division 5, Section VIII, ASME B31.1, and NRC regulations.
• Collaborate with reactor engineering, thermal hydraulics, safety analysis, and operations teams to develop integrated, compliant designs.
• Provide engineering oversight for externally designed systems and components.
• Support licensing and regulatory inquiries with technical justifications.

Skills

Mechanical design

Engineering analysis

Technical writing

Education

Bachelor's degree in Mechanical Engineering

Tools

NX

SolidWorks

ANSYS

COMSOL

Job description

NANO Nuclear Energy, Inc. is seeking a Mechanical Engineer to join our Reactor Engineering team and contribute to developing advanced nuclear reactor technology. You will own critical mechanical components and collaborate across disciplines to bring designs from concept to deployment.

This opportunity offers exposure to the complete lifecycle of reactor development and the chance to work with experts in reactor design, safety analysis, and operations in a highly technical environment.