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26 heat engineer jobs at 18 companies in Washington, DC

1mo
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Senior Systems Engineer
Fort Belvoir, Virginia, United States
$113k-$238k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOEActive Secret clearance, BS in Systems Engineering with 8+ years' relevant experience, expertise in systems engineering lifecycle, FLIR integration, mechanical heat transfer and vibration stress analysis.
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6d
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Senior Engineer, Advanced Thermal Applications
Jessup, Maryland, United States
$90k-$154k/yr OnsiteFull Time
Baltimore Aircoil Company
Baltimore Aircoil Company: Manufacturer of evaporative cooling and thermal storage systems.
5+ YOEBachelor's degree in mechanical engineering or related field and 5+ years in HVAC, with fluid mechanics, heat transfer, thermodynamics, communication, and analytical problem-solving skills.
CFD
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1mo
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Spacecraft Thermal Engineer
Reston, Virginia, United States
$140k-$180k/yr HybridFull Time
Scout Space
Scout Space: Develops optical payloads and software for space domain awareness.
5+ YOEBachelors in engineering, 5+ years spacecraft thermal design experience, Thermal Desktop proficiency, strong heat transfer knowledge, payload lifecycle experience, and strong communication skills.
Thermal Desktop, MATLAB, SINDA, Python
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3mo
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Mechanical Engineer (Manifolds/Liquid Cooling)
Columbia or Glasgow or St. Paul or Pocahontas or Red Lion
$110k-$130k/yr OnsiteFull Time
Tate
TateEuronext Dublin / London Stock Exchange: KRX / KGP: Global manufacturer of data center infrastructure and access flooring.
Bachelor's degree in mechanical engineering and hands-on CFD/FEA experience with HVAC and thermal-fluid systems; requires fluid dynamics, heat transfer, structural mechanics, and independent simulation expertise.
CFD, FEA, ANSYS Fluent, ANSYS CFX, Solidworks Flow Sim, Autodesk CFD, OpenFOAM, ANSYS Mechanical, Abaqus, NASTRAN, On-Shape, SolidWorks, Creo, Python
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3w
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Applications Engineer I, II, or III
Frederick or Washington
OnsiteFull Time
STULZ
STULZ: Designs and manufactures precision cooling systems for mission-critical applications.
4+ YOEMechanical engineering degree preferred; strong thermodynamics, heat transfer, and fluid flow knowledge. HVAC experience or coursework is beneficial. Requires complex problem-solving and English communication skills.
HVAC, ISO 9001
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3w
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Thermal/Hydraulics Engineer
Bethesda, Maryland, United States
$110k-$240k/yr OnsiteFull Time
Ocean Atomics
Ocean Atomics: Designing standardized nuclear power plants for maritime applications.
Bachelor's in nuclear or mechanical engineering, experience in reactor thermal/hydraulic design, proficiency with COBRA, VIPRE, STAR-CCM+, strong fluid mechanics/heat transfer/two-phase flow knowledge, and experience integrating test data into models.
COBRA, VIPRE, STAR-CCM+
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2mo
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Air Pollution Control (APC) Engineer
Hunt Valley, Maryland, United States
$122k-$152k/yr OnsiteFull Time
Ramboll
Ramboll: Global provider of engineering, architecture, and sustainability consulting services.
15+ YOEExtensive experience in sales and engineering of combustion, heat recovery, and air pollution control technologies; 15+ years in related roles; project management; intercultural collaboration.
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1mo
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Thermal Hydraulics Engineer III-V
Rockville, Maryland, United States
$115k-$200k/yr OnsiteFull Time
X-energy
X-energy: Develops advanced small modular nuclear reactors and fuel technology.
5+ YOEBachelor's in mechanical or related engineering, proficiency with engineering hand calculations, CFD experience (STAR-CCM+, Fluent or similar), CFD model development, heat transfer/fluid mechanics analysis, V&V, and design documentation; 5+ years experience for Level III (more for higher levels).
STAR-CCM+, Fluent, Computational Fluid Dynamics (CFD)
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2mo
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Managing Fire Protection Engineer (MS/PhD)
Atlanta or Bowie or Chicago or Warrenville or Los Angeles or Natick or Menlo Park
$115k-$135k/yr OnsiteFull Time
Exponent
ExponentNASDAQ: EXPO: Provides multidisciplinary scientific and engineering consulting for complex problems.
5+ YOEM.S./M.Eng./M.E. or Ph.D. in Fire Protection Engineering, PE preferred, 5+ years fire protection experience, strong technical background in thermodynamics/heat transfer/combustion, business development and leadership skills.
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Operating Engineer
Arlington, Virginia, United States
$85k-$120k/yr OnsiteFull Time
Koniag Government Services
Koniag Government Services: Providing technical and professional services to federal agencies.
3+ YOE3+ years facility engineering experience, valid 3rd Class Steam and Hot Water Heating Boiler Engineer license (or ability to obtain), Top Secret clearance, knowledge of boilers/HVAC/electrical/BAS, CMMS experience preferred.
CMMS, Johnson Controls, Trane, Siemens
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1w
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2027 Graduate - Thermal and EO/IR Modeling and Simulation Engineer
Laurel, Maryland, United States
$85k-$165k/yr OnsiteFull Time
Johns Hopkins University Applied Physics Laboratory
Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.
Master's in mechanical/aerospace or related with coursework in heat transfer, thermodynamics, numerical analysis or fluid dynamics; programming in Python, MATLAB, C++, or Shell; Linux experience preferred; strong communication; ability to obtain Interim and Final Secret clearance (US citizenship).
Python, MATLAB, C++, Shell, Linux
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3d
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Lead CFD Analyst (Mission Critical/Data Center)
Troy or New York City or Herndon or Atlanta or Milwaukee or Tempe
$130k-$182k/yr OnsiteFull Time
WSP
WSPToronto Stock Exchange: WSP: Provides engineering, design, and environmental consultancy services globally.
7+ YOEBachelor’s degree in mechanical engineering or related field, 7+ years of experience, CFD, thermodynamics, heat transfer, building mechanical systems, and strong communication skills required.
FloEFD, STAR CCM+, Fluent, FDS, OpenFOAM, 6SigmaRoom, Python, C++, Java
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Reliability Manager (Baltimore, MD, US)
Baltimore or California or Maryland or Louisiana or Canada or Mexico or United Kingdom or Portugal or Italy or Belize
$140k-$260k/yr OnsiteFull Time
ASR Group
ASR Group: Global refiner and marketer of cane sugar products.
7+ YOEMinimum 7 years manufacturing experience with demonstrated leadership; degree in engineering; expertise in maintenance/reliability, planning/scheduling, CMMS/EAM/ERP optimization, RCM/FMEA/RCFA; experience with conveyors, pumps, heat exchangers, and rotating equipment.
SAP Plant Maintenance, CMMS, EAM, ERP
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3w
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Thermal Engineering Manager 2
Linthicum, Maryland, United States
$154k-$231k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
6+ YOEU.S. citizen able to obtain Secret clearance. Advanced degree in STEM preferred; minimum 6 years thermal/heat transfer and electronics cooling experience; leadership and thermal design-by-analysis experience required.
ANSYS Icepak, ANSYS Thermal Desktop, ANSYS Fluent
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2w
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Post Doctoral Associate
College Park, Maryland, United States
$60k-$65k/yr OnsiteFull Time
University of Maryland
University of Maryland: Public research university providing undergraduate and graduate degree programs.
PhD in engineering, materials science, physics or related field; strong thermal sciences/heat transfer background; demonstrated research productivity and teamwork; experience with computational or experimental energy transport methods.
molecular dynamics, first-principles calculations, pump-probe measurements, thermal metrology, materials characterization
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1mo
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FY27: Building Services Assistant Manager III (Shift 2), 8 hrs / 12 mos, Poolesville HS, Ad closes 7/20/26
Poolesville, Maryland, United States
$23-$32/hr OnsiteFull Time
Montgomery County Public Schools
Montgomery County Public Schools: Provides K-12 public education services in Montgomery County.
Supervise evening custodial staff, maintain building cleanliness and security, perform/manual labor including lifting 50 lbs, and operate basic heating and cleaning equipment; boiler/stationary engineer credentials preferred.
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2mo
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Postdoctoral Fellow (PREP0004763)
Gaithersburg, Maryland, United States
$85k-$86k/yr OnsiteFull Time
Johns Hopkins University
Johns Hopkins University: Private research university providing higher education and medical services.
Doctorate required in engineering or closely related field; expert in heat transfer and battery-fire dynamics; experience with cone calorimeter, CFD (Fire Dynamics Simulator or FireFOAM), National Instruments data acquisition, Python/MATLAB; strong communication and publication record.
heat flux gauges, radiometers, thermal imaging cameras, thermocouples, cone calorimeter, Fire Dynamics Simulator, FireFOAM, National Instruments, Python, MATLAB
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2mo
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Postdoctoral Fellow (PREP0004763)
Gaithersburg, Maryland, United States
$85k-$86k/yr OnsiteFull Time
Johns Hopkins University
Johns Hopkins University: Private research university providing higher education and conducting research.
Doctoral degree in engineering or related field; expertise in heat transfer, cone calorimeter HRR measurements, battery fire dynamics; CFD familiarity (Fire Dynamics Simulator or FireFOAM); National Instruments DAQ; Python/Matlab; strong communication and publication record.
Fire Dynamics Simulator, FireFOAM, National Instruments, Python, Matlab, cone calorimeter, thermal imaging camera, heat flux gauge, radiometer, thermocouple
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Engineering Maintenance Tech II (663365)
Baltimore, Maryland, United States
$32-$52/hr OnsiteFull Time
Johns Hopkins Health System
Johns Hopkins Health System: Provides clinical care, medical research, and health education services.
10+ YOEHigh school diploma or equivalent, 10 years related experience, advanced knowledge of building systems (fire detection, emergency power, chilled/heating water, digital controls, medical gas, high-voltage maintenance, refrigeration, water treatment), and ability to document operational data.
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