Injection & Rheology Engineer

OPmobility SE; Apodaca; On-site; MXN 420,000 - 620,000; Full time

Job summary

OPmobility seeks a Mechanical Engineer specialized in plastics/injection molding with hands-on experience in Moldflow and process simulation. The role focuses on leading simulations, optimizing mold/part design, and supporting transitions from development to production.

You will work in a global, innovative environment shaping safer, smarter mobility solutions, collaborating across functions and suppliers. English communication is required.

Qualifications

• Degree in mechanical engineering with plastics or injection molding specialization.
• Experience in injection molding and process simulation (Moldflow or equivalent) in automotive.
• Strong knowledge of rheology, material behavior, CAE, mold optimization, and heat transfer.
• Familiar with mold/injection equipment, process control, in-mold sensors, CAD, metrology, and statistics.
• Ability to work in multicultural environments and communicate in English.

Responsibilities

• Lead injection molding simulations and rheology studies to optimize design, mold design, injection systems, and process parameters.
• Provide technical recommendations from RFQ and product development through mold trials, process stabilization, and production transfer.
• Perform Moldflow simulations, material characterization, meshing, process capability studies, and in-mold sensor analysis.
• Support tooling and injection teams during mold trials and process convergence to improve quality, cycle time, and robustness.
• Provide technical support to manufacturing plants after mold transfer, including troubleshooting and process control.
• Ensure compliance with HSE and engineering standards while driving continuous improvement and sharing lessons learned.

Skills

Injection molding

Process simulation/CAE

Rheology

Material characterization

Heat transfer

CAD

Metrology

Statistical methods

English communication

Problem solving

Education

Bachelor’s degree in mechanical engineering

Tools

Moldflow

CAD

Metrology equipment

Job description

Ready to take on meaningful challenges and shape the next generation of mobility?

Joining OPmobility means stepping into a global group with a purpose to keep people and goods moving safely, smarter, and sustainably everywhere.

Main Responsibilities

• Lead injection molding simulations and rheology studies to optimize part design, mold design, injection systems, and process parameters.
• Provide technical recommendations throughout the project lifecycle, from RFQ and product development through mold trials, process stabilization, and production transfer.
• Perform and coordinate Moldflow simulations, material characterization, meshing, process capability studies, and in-mold sensor analysis.
• Support tooling and injection teams during mold trials and process convergence, identifying risks and proposing solutions to improve product quality, cycle time, process robustness, and industrial performance.
• Provide technical support to manufacturing plants following mold transfer, including troubleshooting, process control, and implementation of new injection technologies.
• Ensure compliance with HSE and engineering standards while driving continuous improvement through lessons learned, best practices, technical networking, training, and supplier collaboration.

Required Profile

• Bachelor’s degree in mechanical engineering or equivalent, preferably specializing in plastics or injection molding processes.
• Previous relevant experience in injection molding and process simulation, including Moldflow or equivalent tools within the automotive industry; tooling/injection development experience is also expected.
• Strong expertise in injection molding processes, rheology, plastic material behaviour, process simulation/CAE, mold optimization, mechanical engineering, and heat transfer.
• Knowledge of mold and injection equipment, process control, in-mold sensors, material characterization, CAD, metrology, and statistical/analytical methods.
• Strong analytical, problem-solving, communication, teamwork, and technical negotiation skills, with the autonomy to operate in multifunctional and multicultural environments.
• Ability to work and communicate daily in English.

At OPmobility, people truly matter. We are committed to building inclusive teams, promoting diversity and equality, and ensuring that every application is considered fairly - because the future of mobility is built by diverse perspectives, bold ideas, and people who dare to move forward.

Innovation is therefore not a buzzword, but a natural part of everyday work. You’ll grow in an international environment where cutting-edge technologies, industrial excellence, and real-world impact come together to tackle the challenges of tomorrow’s automotive industry.

Founded in 1946 by Pierre Burelle, OPmobility, known until 2024 as Plastic Omnium, has transformed itself into a player in sustainable and connected mobility. Today, OPmobility develops technological solutions across four areas of expertise: exterior and lighting systems, the integration of complex modules, technologies related to energy storage, hydrogen and electrification, and a division dedicated to the development of embedded software and digital solutions.

With €11.5 billion in revenue in 2025, 152 factories, 40 R&D centers, and nearly 38,100 employees across 28 countries, OPmobility combines global scale with local impact. All driven by a shared ambition to accelerate the automotive energy transition.