At KEENFINITY, we are passionate about delivering innovative electronics manufacturing solutions (EMS) for customers across industries such as industrial technology, medical devices, mobility, building solutions, and communication systems. With approximately 1,400 employees across Europe, the Americas, and Asia, we support the entire product lifecycle, from engineering and prototyping to manufacturing, testing, and aftermarket services. We deliver reliable, high-quality solutions that support technologies people rely on every day.

Role Mission.

As a Mechanical Design Engineer – Consumer Electronics & Injection Molded Plastics, you will play a key role in the design, development, validation, and industrialization of innovative consumer electronic products, with a strong focus on injection-molded plastic components. You will transform product requirements into robust mechanical solutions that balance performance, manufacturability, quality, cost, and user experience. Working closely with other Product Development functions, Manufacturing, Quality, Supply Chain, and cross-functional teams, you will drive designs from concept through production and lifecycle support, ensuring successful product launches and continuous product improvement.

Main Activities.

- Design and develop mechanical components and assemblies, including plastic injection-molded parts, considering functionality, manufacturability, industrialization, quality, and cost-effectiveness.
- Create and maintain 3D models, drawings, and technical documentation using CAD software.
- Apply knowledge of plastic part design and injection molding to support robust and manufacturable product designs.
- Conduct and support mechanical design validation, including prototype evaluation, testing, and technical analysis.




- Coordinate the introduction of new part numbers, product structures, technical documentation, and Bills of Materials (BOMs) in SAP or equivalent ERP systems.
- Create, maintain, and update product BOMs and technical data throughout the product lifecycle.
- Execute product changes through established Engineering Change Request / Change Management processes, ensuring accurate and timely documentation.
- Provide product structures, technical data, and documentation required for cost calculations, sourcing, and industrialization activities.
- Support the organization with accurate product data throughout the product development and manufacturing lifecycle.
- Oversee the design, development, and manufacturing of prototypes, coordinating with internal and external stakeholders as needed.
- Collaborate with Manufacturing Engineering, Quality, Purchasing, and other functions to resolve design and product-related issues.
- Ensure product documentation and engineering changes comply with applicable quality management and engineering processes.
- Identify opportunities to improve product designs, documentation, processes, and overall product lifecycle management.

What your Profile Should Look Like.

- Bachelor's degree in Mechanical Engineering or a related field.
- 3+ years of experience in mechanical product design, including plastic injection-molded components, preferably in manufacturing, electronics, or industrial products.
- Proficiency in CAD software (CREO preferred), BOMs, engineering documentation, product structures, and engineering change management.
- Knowledge of injection molding, Design for Manufacturability (DFM), industrialization, and PLM systems.
- Experience in electronics manufacturing or EMS is a plus.

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📌 Mechanical and Product Documentation Engineer (Plastic Injection) (Hermosillo)
🏢 Keenfinity
📍 Hermosillo