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Senior Mechanical Engineer - Nuclear
Knoxville, TNApril 6th, 2026
Requisition ID:292861Relocation Authorized:National - FamilyTelework Type:Part-Time TeleworkWork Location: Knoxville, TNExtraordinary teams building inspiring projects:
Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the world's infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place.Differentiated by the quality of our people and our relentless drive to deliver the most successful outcomes, we align our capabilities to our customers' objectives to create a lasting positive impact. We serve the Infrastructure; Nuclear, Security & Environmental; Energy; Mining & Metals, and the Manufacturing and Technology markets. Our services span from initial planning and investment, through start-up and operations.Core to Bechtel is ourVision, Values and Commitments. They are what we believe, what customers can expect, and how we deliver. Learn more about ourextraordinary teams building inspiring projectsin ourImpact Report.
Project Overview:
Bechtel is the licensing, engineering, procurement, and construction partner on TerraPower's Natrium team. Selected by the U.S. Department of Energy (DOE) for its Advanced Reactor Demonstration Program, Natrium is participating in a DOE initiative to re-establish U.S. leadership in nuclear energy that provides matching funding to industry to design and build an operational advanced reactor. TerraPower, a leading advanced generation technology company founded by former Microsoft CEO Bill Gates, will be deploying its 345 MWe sodium fast reactor (SFR), called Natrium. The Natrium plant features an advanced, cost-competitive reactor design that is safer, simpler, easier, and less costly to construct, less expensive to operate, and able to provide energy that is competitive with fossil fuels. It also features an innovative molten salt energy storage system designed to be complementary to solar and wind power by evening out the peaks and valleys in production when the sun is not shining, or the wind is not blowing. With the reactor and energy storage output combined, the plant can produce more than 500 MWe of power.Other Natrium partners include GE Hitachi Nuclear Energy, Energy Northwest, PacifiCorp, and Duke Energy, along with support from a number of national laboratories and universities. This DOE Program has the potential to be the largest funding program for advanced nuclear power in U.S. history and will shape the future of nuclear energy for decades.
Job Summary:
As aSenior Mechanical Engineer, you will support the development of Mechanical systems and equipment for the project by preparing studies, piping and instrumentation diagrams, calculations, engineering specifications, data sheets, material requisitions, performing technical bid evaluations, and more in accordance with applicable procedures, codes, standards, and contract requirements with limited oversight. This position will require working with other functions and disciplines in a team environment.This role will be based in Knoxville, TN with periodic business travel, as required.
Major Responsibilities:Develop design drawings such as Piping & Instrumentation Diagrams (P&IDs)Perform formal calculations including but not limited to line/duct sizing, pump sizing, valve sizing, equipment sizing, design pressure and temperature, and heat load calculations.Develop engineering specifications, material requisitions, and data sheets.Review vendor submittals and integrate information into a design solution.Develop design configuration packages for configuration control and change management.Execute to schedule requirements while maintaining a high degree of quality in work product.Assist in the building of an inclusive team environment where all are able and expected to contribute to the maximum of their capabilities. Provide leadership and mentoring to team members.Establish or assist in establishing and maintaining work plans to ensure schedules are met and stakeholder requirements are satisfied. Create and track actions, estimate hours, and update schedules.Devise innovative approaches to solving problems from a variety of detailed technical options and assess cost implications.Identify major technical uncertainties and present solution options for management decisions.Serve as an advisor for the analysis and solution of engineering problems and interpret drawings, verbal instructions, and applicable codes relevant to project requirements and the ability to articulate explanations.Interface and coordinate with other engineering disciplines and the client in developing the design.Education and Experience Requirements:Level 1- Requires a bachelor's degree in Mechanical (or related) Engineering and a minimum of 5 years of relevant professional work experience.Level 2 -Requires a bachelor's degree in Mechanical (or related) Engineering and a minimum of 8 years of relevant professional work experience.Required Knowledge, Skills, and Abilities:Must be able to complete a pre-employment drug screen and background check.Must be authorized to live and work in the U.S. without sponsorship.Relevant experience includes, but is not limited to, P&IDs, calculations, and specifications for Mechanical systems and equipment on power plants, refineries, or chemical process facilities.Excellent communication skills (both verbal and written).Ability to utilize office automation tools effectively.Knowledge of industry and regulatory guides, codes, and standards, as well as Bechtel Corporate guides and standards. Broad knowledge of the application of Mechanical engineering design principles.Extensive knowledge of mechanical engineering work processes, procedures, and specifications.[Preferred] - Experience in power (nuclear) plant design.[Preferred] - Experience in working with procedures meeting quality assurance programs such as ASME-NQA-1, MIL-Q-9858A, or ISO-9000.[Preferred] - Professional Engineering License in Mechanical, Nuclear, or Chemical Engineering.Total Rewards/Benefits:
For decades, Bechtel has worked to inspire the next generation of employees and beyond! Because our teams face some of the world's toughest challenges, we offer robust benefits to ensure our people thrive. Whether it is advancing careers, delivering programs to enhance our culture, or providing time to recharge, Bechtel has the benefits to build a legacy of sustainable growth. Learn more atBechtel Total Rewards
Diverse teams build the extraordinary:
As a global company, Bechtel has long been home to a vibrant multitude of nationalities, cultures, ethnicities, and life experiences. This diversity has made us a more trusted partner, more effective problem solvers and innovators, and a more attractive destination for leading talent.We are committed to being a company where every colleague feels that they belong-where colleagues feel part of "One Team," respected and rewarded for what they bring, supported in pursuing their goals, invested in our values and purpose, and treated equitably.Click here to learn more about the people who power our legacy.Bechtel is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity and expression, age,national origin, disability, citizenship status (except as authorized by law),protected veteran status, genetic information, and any other characteristic protected by federal, state or local law. Applicants with a disability, who require a reasonable accommodation for any part of the application or hiring process, may e-mail their request toacesstmt@bechtel.com
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