Heat Transfer jobs in Ashburn, VA

Fort Belvoir, Virginia

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Today

Job Title: Senior Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 25% Type of Travel: Continental US * * * The Opportunity: CACI is seeking a Senior Systems Engineer to support an Army Product Manager (PM) on Ft Belvoir VA. The candidate will provide Systems Engineering support on assigned program(s) with a specific emphasis on system integration of Forward-Looking Infr

Full-time

USD 113,200.00 - 237,800.00 per year

RF Mechanical Engineer I (Onsite)

Remote or Tucson, Arizona

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Today

Date Posted: 2026-09-28 Country: United States of America Location: US-AZ-TUCSON-M02 ~ 1151 E Hermans Rd ~ BLDG M02 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date Are you ready

Full-time

USD 57,200.00 - 108,800.00 per year

PERM & REMOTE: NUCLEAR SIMULATOR ENGINEER 3

Remote

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Today

TITLE: PERM & REMOTE: NUCLEAR SIMULATOR ENGINEER 3 JOB DESCRIPTION: TYPE: Full Time Employee LOCATION: Remote but with travel MUST HAVE EXCELLENT COMMUNICATION SKILLS. This position is available for remote work within the contiguous United States with travel as required for business needs. PAY & BENEFITS: The target pay range for this position is: $87,107 - $105,129 annually. The full pay range is $78,096 - $122,149 annually. POSITION SUMMARY: This simulator modeling engineer will be working

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Full-time

87000 - 105000

Simulator Software Developer 4

Remote

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22d ago

Key Responsibilities Accurately translate information from engineering documentation into plant models. Support the development, testing, and operation of Client's control room simulator and other software projects. Develop software following Client's established procedures and processes to maintain configuration control. Document software defects using issue tracking software. Recommend solutions when errors occur, and identify common-cause issues affecting software performance. Solve problems

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Full-time

Depends on Experience

CFD/Thermal Hydraulics Engineer III-IV

Remote or Rockville, Maryland

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Today

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at ;br> Job Description This role is responsible for the engineering design and development of mechanical s

Full-time

USD 122,500.00 - 138,750.00 per year

Structural or Thermal Analysis Engineer Intern/Co-op, Spring 2027 - 105QE

Herndon, Virginia

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Today

We are looking for Aerospace Engineering, Structural Engineering, Mechanical Engineering, or related Engineering students interested in working in a fast-paced, multi-disciplinary environment and who are excited about assisting on a variety of projects to join our growing team. This is a full-time, onsite opportunity during Spring 2027, with a minimum commitment of 3 months (~March-May) or a 6-month option (~March-Aug). The position is based in Herdon, VA. About Quartus Quartus Engineering In

Full-time

USD 24.00 - 28.00 per hour

Senior Mechanical Engineer 1 - Nuclear Plant Analysis

Reston, Virginia

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Today

Responsibilities This position will offer you the ability to directly apply your knowledge of thermodynamics, heat transfer, fluid mechanics, and experience in power plant engineeringYou will be preparing or reviewing calculations, evaluations, and technical reports to support client recommendations and reviews, and will additionally conduct equipment sizing, optimization evaluation, and selection in response to client needsWhile supporting clients and project teams with other Mechanical Engine

Full-time

USD 84,762.00 - 129,498.00 per year

Lead Mechanical Engineer 1 - Nuclear Plant Analysis

Reston, Virginia

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Today

Responsibilities Our electric power generation clients are seeking to increase the power output of their existing power plants to meet the electric demands. This is expanding work in the Mechanical Analysis Engineering group. You will work on major systems, equipment and plant process in the following areas: Develop and lead licensing basis system and component evaluations for nuclear power uprate projects.This position will offer you the ability to directly apply your knowledge of thermodynami

Full-time

USD 118,023.00 - 180,313.00 per year

Mechanical Engineer Consultant 2 - Nuclear Plant Analysis

Reston, Virginia

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Today

Full-time

USD 145,310.00 - 222,001.00 per year

Mechanical Engineering Intern/Co-op - Buildings (Summer 2027)

Washington, District of Columbia

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Today

Job Description Learning begins in the classroom but there's no better place to gain real-world experience than with Stantec. Interns are an integral part of our teams, working to solve some of the world's most complex challenges. As an intern, you'll work alongside our experienced practitioners and with our clients and communities. This hands-on experience will equip you with practical skills, build your network, and provide opportunities that set you up for success. The buildings that make

Full-time

USD 23.47 - 34.50 per hour

Lead Mechanical Engineer 1 - Mission Critical

Remote

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Today

Responsibilities This is a lead-level engineering position that offers a variety of challenging opportunities in Mechanical Engineering and will provide an excellent opportunity for career advancement. Lead Mechanical design engineering efforts on a multi-disciplined project design team and apply mechanical engineering expertise to the design and analysis of special purpose equipment, pressure vessels, and interfacing systems, controls, and structural support elementsPrepare and review complex

Full-time

USD 118,023.00 - 180,313.00 per year

Senior Mechanical Engineer 1 - Nuclear Plant Analysis

Remote

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Today

Full-time

USD 84,762.00 - 129,498.00 per year

Mechanical Engineering Intern/Co-op - Buildings (Summer 2027)

Washington, District of Columbia

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Today

Learning begins in the classroom but there's no better place to gain real-world experience than with Stantec. Interns are an integral part of our teams, working to solve some of the world's most complex challenges. As an intern, you'll work alongside our experienced practitioners and with our clients and communities. This hands-on experience will equip you with practical skills, build your network, and provide opportunities that set you up for success. The buildings that make up the landscape of

Full-time

USD 23.47 - 34.50 per hour

Mechanical Engineer Consultant 2 (Nuclear Plant Analysis) - Nuclear

Remote

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Today

Full-time

USD 145,310.00 - 222,001.00 per year

Lead Mechanical Engineer 2 (Nuclear Plant Analysis) - Nuclear

Remote

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Today

Full-time

USD 134,546.00 - 205,557.00 per year

Senior Mechanical Engineer 2 - Nuclear Plant Analysis

Remote

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Today

Full-time

USD 100,019.00 - 152,807.00 per year

Mechanical Design Engineer II (Onsite)

Sterling, Virginia

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Today

Join Axon and be a Force for Good. At Axon, we're on a mission to Protect Life. We're explorers, pursuing society's most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our customers, communities and each other. Life at Axon is fast-paced, challenging and meaningful. Here, you'll take ownership and drive real change. Constantly grow as you work

Full-time

USD 108,750.00 - 174,000.00 per year

Sr Mechanical Engineer I (Onsite)

Sterling, Virginia

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Today

Full-time

USD 108,750.00 - 174,000.00 per year

Propulsion Engineer - Solid

Remote or Folsom, California

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Today

Voyager is an innovative space, defense, and national security technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new frontiers for human progress, fortify national security, and protect critical assets to lead in the race for technological and operational superiority from ground to space. Forge the Future: Join Voyager Technologies The future belongs to those who build it. At Voyager Technologies

Full-time

USD 103,000.00 - 218,000.00 per year

Sr. Process Control Engineer

Remote

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Today

Sr. Process Control Engineer At Salas O'Brien we tell our clients that we're engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That's why we're committed to living our values every day: inspiring, achieving, and connecting as shared owners of our success with a focus on a sustainable future. Building for the long-term means that all our team members can expect to work on amazing projects with a people-first approach to prob

Full-time

USD 130,000.00 - 150,000.00 per year

Heat Transfer jobs in Ashburn, VA, USA