Principal Mechanical Engineer

Rock Hill, SC$103k–$129kPosted Jul 22, 2026

Are you interested in being part of an innovative team that supports Westinghouse’s mission to provide clean energy solutions? At Westinghouse, we recognize that our employees are our most valuable asset and we seek to identify, attract and recruit the most qualified talent while recognizing and encouraging the value of diversity in the global workplace.

About the role:

As a Principal Mechanical Engineer you will develop and support nuclear power plant design modifications, engineering evaluations, and technical issue resolution by collaborating with multi-disciplinary teams on Balance of Plant (BOP) systems for operating plants, power uprates, and advanced nuclear technologies

You will report to the Senior Engineering Manager of Nuclear Plant Mechanical Engineering and be located at our Rockhill, SC facility. The hybrid position is based at our Rock Hill, SC office which involves a mix of on-site and remote days, typically within the same week. Please note that relocation assistance is not provided for this position.

Key Responsibilities:

Develop design change packages following the Standard Design Process (SDP; IP-ENG-001) and other plant-specific design change processes for US and international nuclear power plants.
Help develop engineering reports for US power uprates (i.e., system and program evaluations), in the Balance of Plant (BOP) area.
Resolve technical issues for operating nuclear power plants (main scope), with potential involvement in new plants and other nuclear projects (e.g., fuel fabrication facilities).
Work with a multi-discipline team of engineers in the design, analysis, and evaluation of systems and programs, including support to lead engineers, in the BOP area.
Apply engineering principles and engineering codes & standards, such as ASME and ANSI, to the design, analysis, and evaluation of systems.
Work with engineers in other disciplines such as electrical and civil/structural.
Participate on project teams with internal and external representation.
Participate in customer and vendor meetings to present technical materials and justification of services and product designs.
Perform work within established scope, budgetary and schedule requirements.
Identify and help develop new business opportunities, as available.
Mentor more junior engineers.

Qualifications::

Bachelor of Science (B.S.) degree in Mechanical (preferred), Civil, Chemical, or Industrial Engineering.
Subject Matter Expert (SME) in one or multiple engineering areas.
Professional Engineer license (in any state).
10+ years of engineering experience.
Power industry (e.g., nuclear power plant) experience.
Ability to work with multiple functions to coordinate the flow of information.
Ability to work in an international team environment.
Ability to travel for site visits, short-term, or long-term assignments.
Technical leadership competencies (i.e., application of technical knowledge, mentor, innovation, support product marketing, communication, industry influence, customer orientation, teamwork).

Beneficial:

Master of Science (M.S.) degree
Proficiency in other languages

We are committed to transparency and equity in all of our people practices. The base salary range for this position, which is dependent upon experience, qualifications and skills, is estimated to be $103,200 to $129,000 per year.

#LI-Hybrid

Why Westinghouse?

Our benefits package is tailored to meet the diverse needs of our employees, while also promoting wellness and career growth. The following are representative of what we offer:

Comprehensive Medical benefits which could include medical, dental, vision, prescription coverage and Health Savings Account (HSA) with employer contributions options
Wellness Programs designed to support employees in maintaining their health and well-being including Employee Assistance Program providing support for our employees and their household members
401(k) with Company Match Contributions to support employees' retirement
Paid Vacations and Company Holidays
Opportunities for Flexible Work Arrangements to promote work-life balance
Educational Reimbursement and Comprehensive Career Programs to help employees grow in their careers
Global Recognition and Service Programs to celebrate employee accomplishments and service
Employee Referral Program

Westinghouse Electric Company is the global nuclear energy industry's first choice for safe, clean, and efficient energy solutions. We enable our delivery of this vision by living our value system:

Safety and Quality
Integrity and Trust
Customer Focus and Innovation
Speed and Passion to Win
Teamwork and Accountability

While our Global Headquarters are located in Cranberry Township, PA, we have over 11,000 employees working at locations in 19 different countries. You can learn more by visiting http://www.westinghousenuclear.com.

Westinghouse is an Equal Opportunity Employer including Veterans and Individuals with Disabilities

Get connected with Westinghouse on social media: Twitter | Facebook | LinkedIn| YouTube