Entry Level Plastics Engineer Jobs in California

We are seeking a detail-oriented and motivated Associate Injection Mold Designer to join our engineering and manufacturing team. In this entry-level role, you will work closely with senior designers and engineers to translate product concepts into functional, manufacturable injection mold designs. This position is an excellent opportunity for a recent graduate with a foundational background in Computer-Aided Design (CAD) to launch a career in the plastic injection molding industry and gain hands-on, practical engineering experience.

Key Responsibilities

• CAD Drafting & Modeling: Utilize 3D CAD software to create precise technical drawings, detailed mold assemblies, and component designs based on engineering specifications.

• Collaboration & Support: Assist senior mold designers with modifying existing mold designs, updating engineering change notices (ECNs), and troubleshooting design challenges.

• Design for Manufacturability (DFM): Learn and apply foundational principles of injection molding, including core/cavity separation, draft angles, gating, runner systems, and cooling line layouts.

• Documentation Management: Maintain accurate project files, organize engineering documentation, and prepare bill of materials (BOM) lists for tool room fabrication.

• Cross-Functional Communication: Interface with the tool room, production team, and quality department to review design feasibility and support the successful build and sampling of new molds.

Required Qualifications

• Education: Minimum of a 2-year Associate Degree or technical certificate focusing on CAD Design, Mechanical Drafting, Manufacturing Technology, or a closely related field.

• Technical Skills: Foundational proficiency in mainstream 3D modeling software (such as SolidWorks, Autodesk Inventor, Creo, or NX) acquired through coursework or internships.

• Blueprints & Geometric Dimensioning: Solid understanding of technical drawing standards, blueprint reading, and a basic familiarity with Geometric Dimensioning and Tolerancing (GD&T).

• Core Competencies: Strong spatial reasoning, mathematical aptitude, and problem-solving skills with a high degree of attention to detail.

• Soft Skills: Eagerness to learn, strong communication skills, and a collaborative mindset suited for a fast-paced manufacturing environment. Preferred (But Not Required) Qualifications

• Prior internship, co-op, or hands-on experience in a machine shop or manufacturing environment. • Basic understanding of plastic materials, metallurgy, or manufacturing processes.

• Exposure to mold simulation software (e.g., Moldflow)

What We Offer

• Competitive entry-level salary and comprehensive benefits package (Medical, 401k).

• Opportunities for continuing education and advanced training in injection molding technologies.

• A clear path for career progression within our growing engineering

M.R. Mold is known globally for its experience and expertise in the mold building industry. We have been building LSR and plastic injection molds since 1985. The company pays 75% of the employee's medical insurance and matching 401K donations at 10%. We value investing in our employees and helping them succeed and grow both personally and professionally. We'd love to have you join the M.R. Mold team.