Senior Mechanical Engineer, Nuclear

Natura Resources LLC Sr. Mechnical Engineer, Nuclear Abilene, TX
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Natura Resources is seeking a Senior Mechanical Engineer, Nuclear to support the development, design control, and execution of Natura’s liquid-fueled molten salt reactor technology. This role is responsible for mechanical design and design integration for assigned reactor systems, components, and supporting equipment. The Senior Mechanical Engineer, Nuclear will ensure mechanical design outputs are technically sound, properly reviewed, traceable to requirements, controlled under the applicable design control process, and aligned with project, QA, licensing, procurement, fabrication, and operational readiness needs.

Natura Resources is committed to answering the world's increased demand for reliable energy, medical isotopes, and clean water by developing commercially deployable liquid-fueled molten salt reactors.

The Senior Mechanical Engineer, Nuclear provides mechanical engineering leadership for the development and implementation of reactor mechanical systems, equipment, and design deliverables. The role supports detailed design, design verification, technical reviews, interface control, procurement specifications, supplier and fabrication coordination, and resolution of technical issues.

This position works closely with the Chief Engineer, project leadership, engineering disciplines, QA, licensing, procurement, chemistry, operations readiness, and external engineering and fabrication partners. The role is expected to apply disciplined nuclear design control practices, including control of design inputs, assumptions, calculations, drawings, specifications, design changes, configuration impacts, and objective evidence.

The successful candidate must be able to work in a first-of-a-kind project environment while maintaining technical rigor, documentation discipline, conservatism, and alignment with applicable codes, standards, QA requirements, and project commitments.

Employment Status: Full-Time

Benefits: Health, Dental, and Vision Insurance, 401(k), Paid Time Off (PTO)

Reports To:Chief Engineer

The Senior Mechanical Engineer, Nuclear has delegated authority within assigned scope to develop, review, and recommend approval of mechanical design outputs, provide technical direction, identify and elevate design control concerns, and require resolution of technical comments before assigned design products are released or used for procurement, fabrication, construction, testing, or operations readiness.

The role is expected to maintain technical independence and rigor when evaluating design adequacy, supplier information, design changes, nonconforming conditions, and deviations from approved requirements. Material technical decisions, design changes, or departures from approved requirements must be elevated for review and approval through the applicable engineering, QA, licensing, and project governance processes.

Lead or support mechanical design activities for assigned MSR-1 systems, components, and equipment. Develop, review, and maintain design inputs, design basis information, calculations, drawings, specifications, design reports, equipment requirements, and technical basis documents in accordance with applicable design control requirements.

Ensure design outputs are complete, technically justified, independently reviewed when required, traceable to requirements, and suitable for procurement, fabrication, installation, testing, and operation.

Perform and support design reviews, design verification, interdisciplinary reviews, supplier document reviews, constructability reviews, and technical evaluations. Identify technical gaps, resolve comments, document assumptions, and ensure open items are tracked to closure.

Support configuration management and engineering change control by evaluating technical, QA, licensing, procurement, fabrication, schedule, and operational impacts of proposed changes.

Apply applicable codes, standards, and nuclear quality expectations to mechanical design activities, including NQA-1 Requirement 3 design control practices, 10 CFR 50 Appendix B Criterion III when invoked, and relevant ASME, pressure boundary, piping, structural, materials, and high-temperature design requirements.

Work with QA and licensing personnel to ensure mechanical design products, procurement requirements, supplier submittals, and technical records support applicable QA program commitments and licensing assumptions.

Support procurement and supplier execution by developing technical specifications, reviewing supplier proposals and submittals, resolving technical questions, supporting source or receipt inspections as needed, and ensuring…