Global Technical Specialist-3D Airflow & Combustion

General Motors Africa & Middle East; Warren (MI); Hybrid; USD 120,000 - 180,000; Full time

Job summary

General Motors is seeking an Engine Combustion & Airflow Technical Specialist to join the Engine Performance and Calibration team in the United States. This role centers on high‑fidelity CFD simulations of ICE systems, fuel spray, exhaust and emissions control to influence next‑generation gasoline and diesel engines.

The candidate should have 10+ years in CFD for powertrain systems, an MS in a related field, and strong proficiency with major CFD tools and post‑processing software.

Qualifications

• Ten plus years of experience with compressible CFD analysis of powertrain-related systems.
• MS in Mechanical or Aerospace Engineering or related field with focus on ICE or fluid dynamics.
• Experience with leading CFD toolchains for gasoline/diesel combustion simulations.

Responsibilities

• 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 interpret combustion processes, heat transfer, cold start behavior, and catalyst heating strategies.
• Provide component-level and/or system-level design recommendations to Hardware & Calibration Tech Specialists based on interpretation of analysis results.
• Lead analysis capability development initiatives with emphasis on an “all virtual” future.
• Drive testing to support development of first-time capable analysis techniques.
• Lead cross-functional teams including engine design, calibration, controls, and emissions compliance.

Skills

CFD analysis

Engine airflow

Combustion modeling

Data interpretation

Programming

Machine learning basics

Education

MS in Mechanical/Aerospace Engineering or related

PhD in Mechanical Engineering (preferred)

Tools

CONVERGE

STAR-CD

STAR-CCM+

ProStar

ICEM

Hypermesh

TGrid

Siemens CCM+ In‑Cylinder Solution

AVL Fire

Ensight

Job description

Job Description

Job 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 escalating issues/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).

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