Mechanical Design Engineer III--Job ID: 4274

RISINGSUN TECHNOLOGIES; United States; Remote; USD 85,000 - 121,000; Full time

Job summary

RISINGSUN TECHNOLOGIES in the United States seeks an experienced Mechanical Design Engineer III to own valve design for a Small Modular Reactor (SMR) project. You will lead qualification, procurement, and technical ownership of safety-related valves, collaborating with global suppliers.

The role requires a Bachelor’s degree in Mechanical Engineering, 4+ years in nuclear valve design, knowledge of ASME III/Section VIII, and strong communication to coordinate across a cross-functional team.

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field.
• Minimum 4 years in nuclear valve design, qualification, and procurement.
• Experience with ASME Section III Class 1–3 valves.
• Familiarity with 10 CFR 50 Appendix B QA programs.
• Strong communication and cross-functional collaboration.

Responsibilities

• Own valve design specifications and review vendor reports, CMTRs, CoCs, and qualification records.
• Lead environmental and seismic qualification activities per QME-1, IEEE 323/344, and ASME III requirements.
• Provide fabrication support and oversee execution at vendor facilities.
• Review vendor stress analyses, seismic analyses, test results, and actuator sizing for compliance.
• Develop and review design and test specifications.
• Ensure valve designs and documentation comply with ASME III and B16.34.
• Support regulatory interfaces and justify design decisions.
• Resolve NCRs affecting design, procurement, and installation.
• Collaborate with interfacing design teams to validate valve parameters.

Skills

Valve design

Cross-functional

Regulatory interface

Technical communication

Education

Bachelor's degree in Mechanical Engineering

Tools

ANSYS

Job description

Job 266:.Mechanical Design Engineer III--Job ID: 4274

Due to nuclear site access/or export-controlled project requirements, this role requires Candidates must also be willing to work on W2.

Location: Remote – United States (North Carolina-based opportunity)

Schedule: 40 hours per week; availability required during core hours of 9:00 AM–3:00 PM EST

Travel: Up to 25%, domestic and international

Interview: One video interview, approximately 30–45 minutes

Pay Rate: $75/hr

We are seeking an experienced engineer specializing in valve design to support a Small Modular Reactor (SMR) project. This role provides technical ownership for the design, qualification, and procurement of safety-related valves, working closely with engineering teams and global suppliers.

Key Responsibilities

• Own valve design specifications and review vendor design reports, Certified Material Test Reports (CMTRs), Certificates of Conformance (CoCs), and qualification records.
• Lead environmental and seismic qualification activities for active valve assemblies in accordance with applicable QME-1, IEEE 323/344, and ASME Section III requirements.
• Provide fabrication support and oversee technical execution at vendor facilities.
• Review vendor stress reports, seismic analyses, functional test results, and actuator sizing calculations for compliance with design specifications.
• Develop and review design and test specifications.
• Ensure valve designs and documentation comply with applicable ASME Section III and B16.34 requirements.
• Support regulatory interfaces and provide technical justification for design decisions.
• Resolve technical open items and non-conformance reports (NCRs) affecting design, procurement, and installation.
• Collaborate with interfacing design teams to validate valve design parameters.

Must-Have Technical Skills

• ASME B31.1.
• ASME Section III.
• ASME Section VIII.
• Design specifications.
• Test specifications.
• Fabrication support.
• Ability to collaborate across a global, cross-functional organization.

Required Qualifications

• Bachelor’s degree in Mechanical Engineering or a related field.
• Minimum of 4 years of relevant engineering experience, preferably in the nuclear industry, with experience in the design, qualification, and procurement of ASME Section III Class 1, 2, or 3 valves.
• Knowledge of ASME Section III 3500 provisions, ASME B31.1, and ASME B16.34.
• Familiarity with nuclear quality assurance programs under 10 CFR 50, Appendix B.
• Experience with active component qualification for power-operated valves.
• Ability to manage concurrent engineering activities and resolve technical issues under project schedule pressure.
• Strong communication skills, including the ability to explain technical risks to leadership and coordinate with global supply chain partners.

Preferred Qualifications

• Experience reviewing static and nonlinear finite element analyses using ANSYS.
• Ability to support activities across design, fabrication, and testing.
• Strong project management and team leadership skills.
• Knowledge of ASME Y14.5 geometric dimensioning and tolerancing (GD&T).