Heat Transfer jobs in Decatur, AL

Senior Specialist, Aerospace Engineer (Thermal Analysis)

Huntsville, Alabama

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Today

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trus

Full-time

USD 102,000.00 - 189,000.00 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

Easy Apply

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

Easy Apply

Full-time

Depends on Experience

Senior Test Engineer

Decatur, Alabama

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Today

Karman Space & Defense is a leader in the rapid design, development, and production of critical, next-generation system solutions that align with the U.S. Department of War and its allies' core mission priorities, and meet the accelerating demand for access to space. Building on nearly 50 years of success, we deliver Payload & Protection Systems, Aero/Hydrodynamic Interstage Systems, and Propulsion & Launch Systems to more than 80 prime contractors supporting over 130 space and defense programs.

Full-time

USD 120,000.00 - 150,000.00 per year

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

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

Mechanical Engineer Consultant 2 (Nuclear Plant Analysis) - Nuclear

Remote

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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 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

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

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

Electrical Engineer

Redstone Arsenal, Alabama

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12d ago

Summary This is a Direct Hire Authority (DHA) solicitation utilizing the DHA for Certain Personnel of the DoD to recruit and appoint qualified candidates to positions in the competitive service. About the Position: Technical expert in the highly complex Electronic Security Center (ESC)/Electronic Security Systems Mandatory Center of Expertise (ESS-MCX) for USACE, located at the U.S. Army Engineering and Support Center, Huntsville Learn more about this agency Duties Help Provide expertise t

Full-time

USD 77,772.00 - 121,183.00 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

Thermal Analyst - Thermal Protection Systems Engineer

Huntsville, Alabama

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Today

Thermal Analyst Thermal Protection Systems Engineer Huntsville, AL Who We Are Aurex is a mission-focused aerospace and defense company building the next frontier of deterrence. From hypersonics and missile defense to hardened networks and orbital systems, we design, test, and deliver the platforms that turn unproven ideas into battlefield-ready capability. Born in Huntsville and built for speed, Aurex brings together aerospace veterans, combat-tested operators, and forward-leaning technologists

Full-time

USD 135,000.00 - 150,000.00 per year

Lead Mechanical Engineer 1 (Nuclear Plant Analysis) - Nuclear

Remote

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Today

Full-time

USD 118,023.00 - 180,313.00 per year

Modeling and Simulation Engineer

Huntsville, Alabama

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Today

Modeling & Simulation Engineer Location: Redstone Arsenal (Huntsville, Alabama) Position Overview: Crossflow Technologies seeks an engineer to support the development, integration, and application of modeling and simulation (M&S) capabilities for hypersonic systems. This role will focus on integrating disparate engineering models and simulation tools into efficient analytical workflows and developing software to automate simulation setup, execution, and post-processing. The engineer will work

Full-time

USD 8.23 per hour

Process Engineer

Remote or Santa Clara, California

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Today

Thanks for your interest in Oklo! We are searching for a Process Engineer to join our engineering team. Position Description Process Engineers at Oklo are responsible for the design, engineering analyses, systems engineering, specifications development, and operations of the fluids and power process systems used in Oklo's power plants. Specific responsibilities may include: Design fluid and process systems including: piping, valves, compressors, pumps, and heat exchangersDefine process equipme

Full-time

USD 80,000.00 - 155,000.00 per year

Senior Test Engineer

Decatur, Alabama

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4d ago

Full-time

Systems Engineer, Gen NSSS, (Nuclear) - 518963

Athens, Alabama

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Today

External - Posting Description Systems Engineer, Gen N, (Nuclear) - 518963 Organization: Nuclear Power Group Department: N Engineering Location: Decatur, AL Relocation benefits are not offered for this position Posting Open: 10/15/2026 Posting Close: 10/24/2026 at 11:59 PM EST Salary: Competitive The Ideal candidate would have nuclear industry experience; other experience such as 3-5 years of equivalent combinations of related industry experience, specialized technical expertise or demonstrated

Full-time

Heat Transfer jobs in Decatur, AL, USA