Hiring: AI / Simulation Principal Engineer - Computational Fluid Dynamics Company: UL Solutions Location: Northbrook, IL Job Posted Time: 2026-09-14 13:08:57 Employment Type: Full-time Target Skills & Keywords : MATLAB, Python, R About the job Experience: •12+ years of experience in CFD, simulation, safety engineering, or applied R&D Required Skills: •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. •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. •Code verification and solution verification •Model validation against experimental data •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. Qualifications: •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 •Demonstrated capacity to lead complex engineering problems and work with cross-functional teams •Strong communication and documentation skills •Exposure to UQ, risk-based modeling, or HPC Compensation: •$142,000 - $190,000 / year •This position is eligible for annual bonus compensation with a target payout of 20% of the base salary Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!