Dimensional Engineer

Vertex Sigma Software•Foster City, CA

11h

About The Position

Own dimensional requirements from early design through production launch for assigned vehicle systems or commodities - Develop and maintain 3D tolerance analysis (DVA) models to predict variation and assess design robustness - Define and validate GD&T schemes aligned with functional and manufacturing intent - Partner with Design Engineering to influence part geometry, locators, and interfaces to meet dimensional and craftsmanship targets - Support top-down and bottom-up dimensional integration, ensuring alignment with vehicle-level requirements - Review and approve drawings, CAD releases, and engineering changes from a dimensional standpoint - Collaborate with Manufacturing Engineering on fixture concepts, locating strategies, and build assumptions - Support Quality and Manufacturing teams during issue resolution, including gap/flush, fit, and alignment concerns - Analyze build and measurement data (CMM, scan data, build reports) to validate models and drive corrective actions - Lead or support dimensional root cause analysis, proposing effective countermeasures and design or process improvements - Present dimensional status, risks, and recommendations in design and program reviews - Support supplier discussions related to dimensional feasibility, tolerance capability, and corrective actions

Requirements

Bachelor’s degree in mechanical engineering, Manufacturing Engineering, or a related field
7-8 years of experience in dimensional engineering, tolerance analysis, or geometric integration within automotive or other high-volume manufacturing environments
Strong working knowledge of GD&T (ASME Y14.5) with demonstrated application on production-intent designs
Hands-on experience with 1D/3D tolerance analysis tools, such as 3DCS
Proven experience supporting programs from concept through production launch, including detailed design, DV, PV, and SOP
Ability to interpret CAD models, engineering drawings, and build strategies to define robust dimensional requirements
Demonstrated experience working cross-functionally with Design Engineering, Manufacturing Engineering, Quality, and Suppliers
Strong analytical and problem-solving skills, including dimensional root cause analysis and corrective action development
Ability to clearly communicate technical requirements, risks, and trade-offs to diverse stakeholders
Solid understanding of manufacturing process capability and material-driven tolerances across common automotive components, including: o Stampings (steel and aluminum): spring back, forming variation, trim tolerance, and hemming effects o Castings (HPDC, LPDC, sand): draft, wall-thickness variation, shrink, machining stock, and post-machining datums o Injection-molded plastics: material shrink, warpage, fiber orientation, tooling condition, and environmental influences o Extrusions: profile variation, twist, bow, and cut-length tolerances
Ability to translate material behavior and process capability into realistic GD&T schemes and tolerance assumptions during design
Experience assessing supplier manufacturing feasibility and tolerance capability during sourcing and design reviews

Nice To Haves

Experience in an automotive OEM or Tier-1 supplier environment
Experience owning or contributing to DVA / DVP / black-box tolerance models, including compliant (flexible) part modeling to represent real-world assembly behavior
Hands-on experience modeling part compliance, locator strategies, and assembly sequence effects using 3D tolerance analysis tools (3DCS)
Ability to apply compliant modeling techniques to assess gap/flush, fit, and functional performance of flexible components such as stampings, plastic trims, seals, and closures
Knowledge of fixture strategy, locating schemes, and build sequence development
Experience supporting closures, BIW, interior, or exterior systems
Familiarity with craftsmanship targets, including flush, gap, and visual quality requirements
Experience supporting low-volume programs or new product launch environments

Responsibilities

Own dimensional requirements from early design through production launch for assigned vehicle systems or commodities
Develop and maintain 3D tolerance analysis (DVA) models to predict variation and assess design robustness
Define and validate GD&T schemes aligned with functional and manufacturing intent
Partner with Design Engineering to influence part geometry, locators, and interfaces to meet dimensional and craftsmanship targets
Support top-down and bottom-up dimensional integration, ensuring alignment with vehicle-level requirements
Review and approve drawings, CAD releases, and engineering changes from a dimensional standpoint
Collaborate with Manufacturing Engineering on fixture concepts, locating strategies, and build assumptions
Support Quality and Manufacturing teams during issue resolution, including gap/flush, fit, and alignment concerns
Analyze build and measurement data (CMM, scan data, build reports) to validate models and drive corrective actions
Lead or support dimensional root cause analysis, proposing effective countermeasures and design or process improvements
Present dimensional status, risks, and recommendations in design and program reviews
Support supplier discussions related to dimensional feasibility, tolerance capability, and corrective actions