Contractor - Nuclear Mechanical Engineer 4 (NSSS Vessels & Structures)

Seine LLC; Georgia; On-site; USD 120,000 - 160,000; Full time

Job summary

Seine LLC is seeking a Contractor - Nuclear Mechanical Engineer 4 (NSSS Vessels & Structures) for a 6-9 month engagement. This remote role requires travel to Houston, TX up to 20% and may extend into 2027.

The engineer will perform design and stress analyses of pressure vessels and primary equipment supports per ASME BPVC Section III, lead the NSSS Component Analysis Group, and mentor staff under NQA-1 quality requirements.

Qualifications

• A BS in Engineering, preferably Mechanical, from ABET-accredited college.
• 10+ years of full-time relevant experience with ANSYS stress analysis per ASME Section III NB/NF.
• Experience with ANSYS APDL, MATLAB, Python is preferred.

Responsibilities

• Perform design and stress analyses of pressure vessels and primary equipment supports per ASME BPVC Section III.
• Mentor staff and provide guidance within NSSS Component Analysis.
• Lead NSSS Component Analysis Group and provide engineering oversight.
• Interact with disciplines to coordinate design activities and resolve technical problems.

Skills

Stress analysis

Python

MATLAB

Education

Bachelor's degree in Engineering (Mechanical preferred)

ABET accredited college

Tools

ANSYS

CAD packages

Job description

++TITLE:++ Contractor - Nuclear Mechanical Engineer 4 (NSSS Vessels & Structures)

++LOCATION:++ Remote with 20% Travel to Houston, TX

++DURATION:++ 6-9 Months

++KEYS:++

• ANSYS ( Finite Element Software) Stress Analysis; ANSYS APDL
• PYTHON AND MATLAB; NSSS ( Nuclear Steam Supply System)
• ALWR ( Advanced Light Water Reactor); ASME BPVC Section III
• ASME NQA-1 Quality Assurance Requirements

++JOB DESCRIPTION:++

This is a 40 hour/week contract position anticipated to last through all of 2026 and potential into 2027. Work may be performed remotely within the contiguous United States, with travel as required for business needs.

++POSITION SUMMARY:++

The Nuclear Steam Supply System (NSSS) Component Engineering organization generates technical requirements and associated design parameters for the modular advanced light water reactor (ALWR) NSSS. Utilizing proven state-of-the-art methodologies, NSSS components are engineered to nuclear industry standards. The person in this position performs design and stress analyses of pressure vessels and/or primary equipment supports in accordance with ASME BPVC Section III and applicable regulatory requirements. All work within the NSSS Component Engineering organization is completed under ASME NQA-1 quality assurance requirements and respective U.S. Nuclear Regulatory Commission guidelines.

++ESSENTIAL DUTIES AND RESPONSIBILITIES:++

• Possesses excellent knowledge in functional discipline and its practical application and has detailed knowledge of applicable industry codes, standards and regulations.
• Performs and documents evaluations of components to the rules and requirements of Section III of the ASME Boiler and Pressure Vessel Code including but not limited to analysis of components for pressure, mechanical/thermal loadings including Primary Stress, Primary plus Secondary stress intensity range, and Fatigue. Utilizes the results from these evaluations to optimize component(s) design.
• Significant experience with ANSYS finite element software and CAD packages.
• Interprets scope and project requirements.
• Acquires, maintains and develops training qualifications. Provides guidance and mentoring to other staff members in all areas of NSSS Component Analysis.
• Interacts with co-workers and other disciplines to promote effective coordination of design activities and resolution of technical problems. Individuals should be interested in acquiring general knowledge of principles and practices of related fields in order to function on multi-disciplinary teams.
• Provides mentoring and technical direction to less experienced engineers. Serves as a technical lead for the NSSS Component Analysis Group.
• Responsible for results and engineering oversight.
• Performs other duties as assigned.

++MINIMUM SKILLS, QUALIFICATIONS AND ABILITIES:++

++Education:++

A minimum of a B.S. degree in Engineering, preferably Mechanical Engineering, from a four year ABET accredited college or university is required. An advanced degree is preferred. Professional engineer (P.E.) certification is preferred.

++Experience:++

A minimum of 10 years of full-time relevant working experience is required. Candidates must have extensive experience utilizing ANSYS to perform stress analysis in accordance with Section III of the ASME Boiler and Pressure Vessel Code, Subsections NB and/or NF.

++Additional experience in the following areas is desired:++

• Computer programming skills (e.g., ANSYS APDL, MATLAB, Python).

++Industry Requirements:++

Eligible to work under Department of Energy 10 CFR Part 81