Senior Principal Tool Engineer

About the role

The Sr Principal Tooling Engineer leads the design, build and process development of injection molding tools for plastic components within New Product Development, ensuring alignment with product design, material, and manufacturing requirements. This supplier-facing role also leverages 3D CAD, data analysis tools, and SPI standards to ensure high-quality molded components and reliable tooling performance.

Responsibilities

• Technical leadership in plastic part design, mold flow analysis, polymer rheology, and tooling design
• Guiding suppliers through tool build, validation, and qualification activities
• Applying Geometric Dimensioning and Tolerancing (GD&T), tolerance stack-up analysis, and statistical methods such as DOE, MSA, and SPC to support robust process development
• Providing technical assistance and guidance to suppliers and contract manufacturers performing qualification and validation testing
• Using and understanding of Statistical Tools (Design of Experiments, Measurement System Analysis/Gage R&R, Process Capability and Statistical Process Control)
• Using Society of Plastics Industry Standards (SPI) for mold build classification and texture/surface appearance recognition
• Owning and driving mold tool development and injection molding projects through adherence to established product design, scientific injection molding process, tooling, resin, and equipment

Requirements

• Solid understanding of Plastic Part Design / Injection Molding Guidelines
• Knowledgeable in the use of 3D CAD packages & Data Analysis software
• Understands Mold Flow analysis
• Rheology knowledge both Crystalline & Amorphous plastics resin (examples include polycarbonate, acrylic, PVC, Nylon and Co-polyesters)
• Demonstrated ability to guide and coordinate vendor tool design and qualification activities to meet requirements of the application and DRM guidelines
• Understanding of Geometric Dimensional Tolerancing (GDT) and application for inspection setup and tolerancing allowances of molded components
• Provide technical assistance and guidance to suppliers and contract manufacturers performing qualification and validation testing
• Use and understanding of Statistical Tools (Design of Experiments, Measurement System Analysis/Gage R&R, Process Capability and Statistical Process Control)
• Use of Society of Plastics Industry Standards (SPI) for mold build classification and texture/surface appearance recognition

Qualifications

• Bachelor’s degree
• 10+ years of experience with a bachelor’s degree or 8+ years of experience with an advanced degree

Skills

• Geometric Dimensioning and Tolerancing (GD&T)
• Mold Flow analysis
• Rheology knowledge (Crystalline & Amorphous plastics resin)
• Statistical Methods (DOE, MSA, SPC)
• Society of Plastics Industry Standards (SPI)

Benefits

Competitive Salary and flexible Benefits Package including:

• Health, Dental and vision insurance
• Health Savings Account
• Healthcare Flexible Spending Account
• Life insurance
• Long-term disability leave
• Dependent daycare spending account
• Tuition assistance/reimbursement
• Simple Steps (global well-being program)

Pay

$151,200.00 - $226,800.00

Schedule

Full-time, 4 days a week