[Hiring] Senior Mechanical Design Engineer @Cynet Systems

Role Description

We are seeking a highly technical Mechanical Design Engineer to support the X-300 SMR project, focused on the design and fabrication of nuclear mechanical components. The candidate will be a key technical authority from design through fabrication and final acceptance, ensuring all components are fit for service and fully compliant with nuclear codes and standards. This role is critical to keeping the construction schedule on track and ensuring long-term plant reliability.

Key Responsibilities

• Develop and review mechanical component design specifications, calculations, and drawings.
• Define materials, weld details, and inspection requirements in accordance with ASME Section III.
• Approve CMTRs, CoCs, weld and NDE records, dimensional inspection reports, and final data packages.
• Support Vendor Response (VR) type issues such as Supplier Change Requests, Inspection and Test Plans, Procedure Reviews, and Vendor Document Reviews.
• Translate design requirements into clear, buildable fabrication documents.
• Review and approve vendor fabrication procedures, manufacturing plans, and test plans.
• Monitor and resolve technical issues during fabrication, fit-up, and final inspection.
• Ensure compliance with ASME Section III (and related codes), and nuclear QA requirements (10 CFR 50 Appendix B / NQA-1).
• Support environmental and seismic qualification of components, and document justification for design/fabrication decisions.
• Lead resolution of non-conformances (NCRs) and design/fabrication open items.
• Work closely with design, analysis, quality, supply chain, and construction teams.
• Communicate technical risks, status, and trade-offs to leadership and suppliers.

Qualifications

• 5+ years of experience with mechanical design engineering.
• ASME BPVC III and ASME NQA-1 knowledge.
• Bachelor of Science in Mechanical Engineering or similar field.
• Experience with Boiling Water Reactors.
• Proficiency with CAD, specifically Autodesk Inventor 3D CAD design.
• Demonstrated proficiency interpreting engineering drawings, model-based definitions, and GD&T requirements in accordance with ASME Y14.5.
• Experience with weldment design and fabrication.
• Strong interpersonal and proven leadership skills.
• Strong verbal and written communication skills with the ability to document, plan, and execute programs.

Nice To Have

• 4 years of experience with ASME codes & standards or equivalent.
• 7 years of experience in heavy industrial, thermal power, or nuclear industry working in mechanical equipment and component design, including specification of design requirements, design development, procurement, test, and fabrication/installation support.
• Ability to take ownership and responsibility for scoping, planning, scheduling, budgeting, action tracking, prioritization, monitoring, corrective actions, and results.
• Continuous improvement mindset with an ability to identify, influence, and implement better ways to do an activity or process.
• Knowledge, skill, and experience in regulatory affairs and licensing processes (e.g., NRC, CNSC).
• Master of Science Degree in an Engineering discipline.
• Professional Engineer license.
• Proficiency with ANSYS FEA analysis.

Required Qualifications

• Education: Bachelor's degree in Mechanical Engineering (or related field).
• Experience: 5+ years in nuclear or highly regulated industry, focused on ASME Section III Class 1, 2, or 3 mechanical components (pressure vessels, piping, valves, supports, etc.).
• Technical Skills: Strong knowledge of ASME Section III and ASME B31.1; familiarity with ASME material, welding, and NDE requirements; knowledge of ASME Y14.5 GD&T experience working under nuclear QA programs (10 CFR 50 Appendix B / NQA-1).
• Soft Skills: Proven ability to resolve complex technical issues under schedule pressure; strong written and verbal communication with suppliers and internal stakeholders.

Desired Qualifications

• Certifications: P.E. preferred; ASME Certifying Engineer strongly preferred (or actively pursuing).
• Familiarity with ASME OM Code and in-service considerations.
• Experience across design, build, and test phases for mechanical components.
• Demonstrated project leadership in multi-discipline engineering environments.