Jobs in the United States

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Added 4 mins ago
Principal Electrical Engineer – Power Electronics & CT Architecture
GE HEALTHCARE
Waukesha, WI
We're looking for an experienced Power Electronics Engineer who enjoys solving complex system-level problems and wants to stay actively involved in the engineering work. This is a hands-on…
Added 8 mins ago
Mechanical Engineer Intern
KLA Corporation
Milpitas, CA
Mechanical engineering is fundamental to the semiconductor industry. Every wafer inspection and metrology system depends on precise and reliable mechanical design. As a Mechanical…
Added 8 mins ago
Principal Electrical Engineer – Power Electronics & CT Architecture
GE Medical Systems, L.L.C.
United States
We're looking for an experienced Power Electronics Engineer who enjoys solving complex system-level problems and wants to stay actively involved in the engineering work. This is a hands-on…
Added 11 mins ago
Senior CS Technical Support Engineer
Cymer, LLC. (US01)
San Diego, CA
As a Senior CS Technical Support Engineer, you will deliver technical support for Cymer laser products in Integrator and Chipmaker Operations. The Cymer Global Support Center (GSC) provides…
Added 11 mins ago
Mechanical Designer for SEM
ASML US, LP. (US31)
San Jose, CA
The mission of Electron Optics Design Engineer position is to design EO system/submodules for the state of the art e-Beam inspection/Metrology tool. As an Electron Optics Design Engineer,…
Added 17 mins ago
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Sr. Electrical Engineer (PE)
GPAC
Orlando, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 17 mins ago
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Sr. Electrical Engineer (PE)
GPAC
Cape Coral, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 17 mins ago
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Sr. Electrical Engineer (PE)
GPAC
Tampa, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 17 mins ago
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Sr. Electrical Engineer (PE)
GPAC
Port Saint Lucie, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 17 mins ago
G
Sr. Electrical Engineer (PE)
GPAC
Tallahassee, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 17 mins ago
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Sr. Electrical Engineer (PE)
GPAC
Saint Petersburg, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 18 mins ago
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Sr. Electrical Engineer (PE)
GPAC
Miami, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 18 mins ago
G
Sr. Electrical Engineer (PE)
GPAC
Hialeah, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 18 mins ago
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Sr. Electrical Engineer (PE)
GPAC
Jacksonville, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 18 mins ago
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Sr. Electrical Engineer (PE)
GPAC
Fort Lauderdale, FL
- $110,000 to $135,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 18 mins ago
Project Engineer - Development Engineering
Rolls-Royce
United States
Job Title: Project Engineer - Development Engineering
Added 18 mins ago
ZP
Chief Engineer - Space
Zeno Power
Seattle, WA
- $195,000 to $245,000 USD / year
Zeno is seeking a highly motivated Chief Engineer - Space to support the mission-oriented efforts of developing and bringing to market Radioisotope Power Systems (RPS) technologies. As…
Added 22 mins ago
Mechanical Engineer II, R&D
Form Energy
Somerville, MA
Form Energy is hiring a Mechanical Engineer II, R&D to join our Core Technology Hardware team, where you will own the design of the hardware that lets us evaluate and refine our iron-air…
Added 27 mins ago
Supplier Quality Engineer- Component Introduction - Autonomous Mobility
AUMOVIO
New Braunfels, TX
Drive component introduction within the customer and development projects• Perform Risk Analysis & create risk mitigation plan along with Supplier, SQM P and project team.
Added 27 mins ago
Mobile Engineer
CBRE
Mesquite, TX
As a CBRE Mobile Engineer, you will be responsible for facility building maintenance focusing on retail sites within the Mesquite area. You’ll be focused on several trades including HVAC,…
Added 27 mins ago
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Lead the Mechanical Department | Chicago | $150K-$180K + Bonus
GPAC
Oak Brook, IL
- $150,000 to $180,000 USD / year
15+ Years of Mechanical/MEP Engineering Experience
Added 28 mins ago
Mechanical Engineer- PCB
Actalent
Bastrop, TX
The Mechanical Engineer will support printed circuit board (PCB) manufacturing operations with a primary focus on process improvement, engineering experimentation, and the implementation of…
Added 28 mins ago
Hardware Design Engineer Intern
Emerson
Round Rock, TX
…Intern (Summer 2027) who is passionate about electrical and mechanical engineering and excited to gain hands-on experience in a collaborative, innovative environment based in either our…
Added 28 mins ago
TH
Field Service Technician II Full Time
Texas Health Resources
Arlington, TX
- Full-time
In-House service engineer supporting Diagnostic Imaging Equipment
Added 29 mins ago
Relay Test Engineer
ABM Industries
Irving, TX
…systems, protective relay systems (microprocessor and electro-mechanical); substation and electric utility protection systems; station automation and supervisory control and data…

UL, LLC

AI / Simulation Principal Engineer - Computational Fluid Dynamics

Austin, TX, United States

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Job details

Posting language: English
Posted: Jul 10, 2026

Original job description

We are seeking a Principal Engineer – CFD Simulation Engineering to join our team. The ideal candidate will be a highly experienced technical leader with deep expertise in physics-based modeling and simulation, particularly in CFD, thermal-fluid sciences, fire and explosion modeling, refrigerant leakage, battery thermal runaway, combustion, multiphase flows, turbulence modeling, and electronic cooling.

A core requirement of this role is strong expertise in simulation Verification & Validation (V&V), including application of industry-recognized frameworks best practices for ensuring model credibility and reliability.

The candidate should have a strong background in applying advanced simulation methods to complex engineering problems involving product safety, certification, design validation, hazard analysis, and failure investigation. The candidate will be responsible for driving technical excellence, consistency, and engineering quality in simulation methodologies across global teams

Serve as the principal technical authority for advanced simulation projects involving CFD, fire/explosion, refrigerant leakage, battery thermal runaway, combustion, multiphase flows, turbulence modeling, and electronic cooling.
Lead and enforce simulation Verification & Validation (V&V) methodologies, ensuring alignment with ASME V&V 10 / V&V 20 standards, NASA CFD and modeling credibility guidelines, Oberkampf & Roy (Verification and Validation in Scientific Computing) principles, etc.
Define and implement best practices for:
Code verification and solution verification
Model validation against experimental data
Uncertainty quantification (UQ)
Sensitivity analysis
Grid convergence and mesh independence studies
Error estimation and documentation of model limitations
Establish model credibility frameworks for simulation-based decision-making, especially for safety-critical applications.
Lead simulation-based investigations in:
Refrigerant leakage and dispersion (flammability and ignition risk)
Battery thermal runaway propagation and vent gas hazards
Fire, smoke, and explosion dynamics
Combustion and reacting flows
Multiphase and phase-change systems
Electronics cooling and thermal reliability
Ensure test-to-simulation correlation and apply structured V&V approaches to build confidence in simulation predictions.
Develop and review technical reports and documentation with clear articulation of:
Modeling assumptions
Validation evidence
Uncertainty bounds
Applicability and limitations of the model
Act as the technical approver/reviewer for high-impact simulation studies, ensuring V&V rigor before results are used for certification or decision-making.
Guide teams in selecting appropriate modeling approaches (analytical, CFD, reduced order, and digital twins) based on required fidelity and validation maturity.
Work closely with testing, certification, and regulatory teams to ensure simulation outputs are aligned with engineering standards and safety requirements.
Mentor engineers on V&V best practices, simulation credibility, and physics-based modeling techniques.
Contribute to the development of internal V&V guidelines, checklists, and simulation governance frameworks.
Represent the organization in external technical forums, standard committees, and discussions related to simulation credibility and digital engineering.
Ph.D. / Master’s in Mechanical, Aerospace, Chemical, Fire Engineering, Thermal Sciences, or related field (Ph.D. preferred) with 10–12+ years of experience in CFD, simulation, safety engineering, or applied R&D
The candidate is not only a subject-matter expert in simulation physics but also a recognized authority in simulation credibility and V&V.
The candidate should be capable of ensuring that simulation outputs are technically defensible, repeatable, validated, and suitable for high-stakes engineering and certification decisions.
The candidate must demonstrate the ability to bridge advanced physics modeling with structured validation frameworks, enabling confident decision-making in safety-critical applications.
Proficiency in CFD tools: ANSYS Fluent, STAR-CCM+, OpenFOAM, CONVERGE, FDS
Strong fundamentals in: Turbulence (RANS, LES), Heat transfer, Combustion & fire modeling, and Multiphase flows
Hands-on experience in: Refrigerant leakage & gas dispersion, Fire / explosion modeling, Thermal & safety simulations
Experience in test correlation, validation, and technical reporting
Ability to lead complex engineering problems and work with cross-functional teams
Strong communication and documentation skills
Experience in safety, certification, or regulated environments
Exposure to UQ, risk-based modeling, or HPC
Basic scripting (Python/MATLAB)
Core Skills: CFD | Combustion | Multiphase Flow | Refrigerant Leakage | Fire & Explosion | V&V | Thermal Analysis | Risk Assessment

What you’ll experience working for ULS

UL Solutions has been pioneering change since 1894 and we’re still leading the way. From day one, we’ve blazed a trail protecting the planet and everyone on it. Our teams have influenced billions of products, plus services, software offerings and more. We break things, burn things and blow things up. All in the name of safety science.

That’s where you come in - because none of it could happen without you. It takes passion to protect people, problem-solving to safeguard personal data and conviction to make the world a more sustainable place. It takes bold ideas and brilliant minds to build a better world for future generations across the globe.

This is more than a job. It’s a calling. A passion to use our expertise and play our part in creating a more secure, sustainable world today - and tomorrow. As a member of our safety science community, you’ll use your ideas, your energy and your ambition to innovate, challenge and ultimately, help create a safer world.

Everyone here is unique. But we’re also a global community, working together to help create a safer world. Join UL Solutions and you can connect with the brightest minds in the business, all bringing their distinct perspectives and diverse backgrounds together to deliver real change.

Empowering our customers to keep the world safe means thinking ahead. It means investing in training and empowering our people to learn and innovate. At UL Solutions, we help build a better future - one where everyone benefits.

Join UL Solutions to be at the center of safety. To learn more about us and the work we do, visit UL.com

Total Rewards: We understand compensation is an important factor as you consider the next step in your career. The estimated salary range for this position is $142,000 to $190,000 USD and is based on multiple factors, including job-related knowledge/skills, experience, geographical location, as well as other factors. This position is eligible for annual bonus compensation with a target payout of 20% of the base salary. This position also provides health benefits such as medical, dental and vision; wellness benefits such as mental and financial health; and retirement savings (401K) commensurate with the standard rewards offered in each individual location or country. We also provide full-time employees with paid time off including vacation (15 days), holiday and personal days (totaling 12 days) and sick time off (72 hours).

A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers’ product innovation and business growth. The UL Mark serves as a recognized symbol of trust in our customers’ products and reflects an unwavering commitment to advancing our safety mission. We help our customers innovate, launch new products and services, navigate global markets and complex supply chains, and grow sustainably and responsibly into the future. Our science is your advantage.

UL LLC has been and will continue to be an equal opportunity employer. To assure full implementation of this equal employment policy, we will take steps to assure that:

Persons are recruited, hired, assigned and promoted without regard to race, color, age, sex or gender, sexual orientation, gender identity, gender expression, transgender status, religion, creed, national origin, ethnicity, citizenship, ancestry, disability, genetic information, military or veteran status, pregnancy, marital or familial status, or any other protected category under applicable law.

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