Global Technical Specialist--3D Airflow & Combustion

Description

Work Arrangement: This role is categorized as hybrid. This means the successful candidate is expected to report to the office three times per week, at minimum.

The Role

General Motors is seeking a highly skilled and motivated Engine Combustion & Airflow Technical Specialist to join our Engine Performance and Calibration team. This role is critical in shaping the future of internal combustion engine (ICE) technology through high-fidelity computational fluid dynamics (CFD) simulations. The ideal candidate will have deep expertise in engine airflow, gas exchange, combustion modeling, fuel injection spray, exhaust systems and emissions control, and will contribute to the design and optimization of next-generation gasoline and diesel combustion systems and airpaths.

What You'll Do

• Lead the technical method development and roadmap for fuel spray, in-cylinder mixture preparation, combustion analysis, exhaust and aftertreatment systems, manifolds and boosting systems.

• Own scorecards for critical hardware release metrics for combustion, airflow, exhaust systems, aftertreatment, and exhaust sensors

• Design and optimize combustion chamber geometries for improved efficiency, power output, and emissions performance.

• Simulate and interpretcombustion processes,heat transfer,cold start behavior, andcatalyst heatingstrategies.

• Provide component-level and/or system-level design recommendations to Hardware & Calibration Technical Specialists based on interpretation of analysis results

• Own and enhance current standard analysis practices and/or tools to improve prediction fidelity and/or execution speed

• Lead, execute, and coordinateanalysis capability development initiatives, with emphasis on an"all virtual"future

• Drive testing to support the development of first-time capable analysis techniques

• Stays abreast of new technology and competitive products

• Lead cross-functional teams including engine design, calibration, controls, and emissions compliance.

• Interface with software vendors to convey future needs and impart change

• Work with leadership, development partners,and PMT Technical Specialists toidentifygaps and priorities for analysis growth

• Seek outstate of the arttools and methodsandmaintaina benchmark of industry capability and trends

• Lead analysis support for code red and urgent product issue resolution

• Interfacewith othervirtualgroups toestablishcommon processes

• Communicatestatus to leadership and escalateissues/roadblocks within the organization, as necessary

• RepresentGMforexternal collaborations and conferences

Your Skills & Abilities (Required Qualifications)

• 10+ years' experience with compressible CFD analysis of powertrain-related systems

• MS in Mechanical Engineering, Aerospace Engineering or a related field with a focus on internal combustion engines or fluid dynamics

• 7+ years' experience in CFD software (CONVERGE, STAR-CD, STAR-CCM+ or similar) for gasoline or diesel mixture preparation / combustion simulation

• Highly proficient with ProStar, ICEM, Hypermesh, Tgrid, or equivalent CFD meshing software

• Highly proficient with Converge, Siemens CCM+ In-Cylinder Solution, StarCD, AVL Fire, or equivalent CFD software

• Highly proficient with Ensight, ProStar or equivalent CFD post-processing software

• Proficient in programming (Java, MATLAB, Python), workflow automation, and customization of tools surrounding main vendor software

• Strong understanding of engine combustion testing, data acquisition and analysis

• Demonstrated experience leveraging machine learning, advanced statistical methods, model-based calibration and/or multi-disciplinary CAE optimization

What Will Give You A Competitive Edge (Preferred Qualifications)

• PhD in Mechanical Engineering or related fields

• Proficient in application of machine learning, data driven modeling techniques in context of engine simulations

• Proficient with GT-Power, WAVE, AVL Boost, or equivalent 1D engine simulation software

• Experience with hands-on engine testing, data acquisition and calibration tools (AVL Concerto, Indicom, ETAS)

This job may be eligible for relocation benefits

#LI-LG2

GM does not provide immigration-related sponsorship for this role. Do not apply for this role if you will need GM immigration sponsorship now or in the future. This includes direct company sponsorship, entry of GM as the immigration employer of record on a government form, and any work authorization requiring a written submission or other immigration support from the company (e.g., H1-B, OPT, STEM OPT, CPT, TN, J-1, etc.)

This role is categorized as hybrid. This means the selected candidate is expected to report to a specific location at least 3 times a week {or other frequency dictated by their manager}.

About GM

Our vision is a world with Zero Crashes, Zero Emissions and Zero Congestion and we embrace the responsibility to lead the change that will make our world better, safer and more equitable for all.

Why Join Us

We believe we all must make a choice every day - individually and collectively - to drive meaningful change through our words, our deeds and our culture. Every day, we want every employee to feel they belong to one General Motors team.

Total Rewards | Benefits Overview

From day one, we're looking out for your well-being-at work and at home-so you can focus on realizing your ambitions. Learn how GM supports a rewarding career that rewards you personally by visiting Total Rewards resources.

Non-Discrimination and Equal Employment Opportunities (U.S.)

General Motors is committed to being a workplace that is not only free of unlawful discrimination, but one that genuinely fosters inclusion and belonging. We strongly believe that providing an inclusive workplace creates an environment in which our employees can thrive and develop better products for our customers.

All employment decisions are made on a non-discriminatory basis without regard to sex, race, color, national origin, citizenship status, religion, age, disability, pregnancy or maternity status, sexual orientation, gender identity, status as a veteran or protected veteran, or any other similarly protected status in accordance with federal, state and local laws.

We encourage interested candidates to review the key responsibilities and qualifications for each role and apply for any positions that match their skills and capabilities. Applicants in the recruitment process may be required, where applicable, to successfully complete a role-related assessment(s) and/or a pre-employment screening prior to beginning employment. To learn more, visit How we Hire.

Accommodations

General Motors offers opportunities to all job seekers including individuals with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, email us [email protected] or call us at 1-800-865-7580. In your email, please include a description of the specific accommodation you are requesting as well as the job title and requisition number of the position for which you are applying.

Client-provided location(s): Warren, MI, Pontiac, MI

Job ID: General_Motors-JR-202610442

Employment Type: FULL_TIME

Posted: 2026-06-04T23:59:38