Mechanical Design Engineer

Are you passionate about building solutions that push the boundaries of nuclear safety and performance? We’re seeking a Mechanical Design Engineer to contribute to the design and development of key mechanical systems and components critical to advanced reactor technology. This is an opportunity to apply your skills across design, analysis, prototyping, and manufacturing-working with an expert team on technology that makes a global impact.

What this role offers:

Location: Onsite in Maryland (preferred) Potential for Hybrid/Remote
Full-Time, Onsite, 12-Month Contract, high likelihood of extension based on performance/job needs
Salary Range: $60-$110/hr based on labor category and qualifications
Healthcare Benefits: Medical, Dental, Vision, etc.
PTO & Paid Holidays
Unmatched 401k

Responsibilities:

• Design, analyze, and develop reactor SSCs (e.g., internal structures, helium circulators, core components).
• Conduct hand calculations and use analytical tools to evaluate thermal, hydraulic, and structural performance.
• Translate concepts into 3D CAD models and engineering drawings.
• Lead or support manufacturing, prototyping, and testing efforts.
• Interface with systems engineers and project leads to define requirements and apply appropriate codes and standards.
• Write technical reports, design basis documents, and verification plans.
• Review designs for manufacturability, integration, and compliance with nuclear quality standards.
• Support configuration management and quality assurance processes.

Qualifications:

• Bachelor’s degree in Mechanical Engineering or related discipline.
• Proficient in hand calculations and mechanical system design.
• CAD and PLM software experience (e.g., NX, SolidWorks, Pro-E, Windchill).
• Minimum 1 year of hands-on experience delivering hardware or manufacturing processes (internships, academic teams, or industry).
• Familiarity with ASME BPVC, B31.1/B31.3, and other relevant design codes.
• Preferred: Experience with nuclear plant operations, graphite or non-metallic components, or pressure vessel manufacturing.

Thomas-Thor provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Katherine Hulse