Mechanical Engineer

This role requires a structured, safety-conscious engineer with strong mechanical and electrical affinity, excellent laboratory discipline, and the ability to work with delicate materials and complex equipment in a pilot-scale R&D environment.

What's in it for you

• You will join an international and growing technology team working on a novel membrane platform with strong visibility across Donaldson
• This role offers the opportunity to help bring a newly developed technology from laboratory scale to pilot scale and to shape how the new line is operated from the beginning.
• Collaborate with international engineering teams.
• Enjoy a competitive salary and an attractive benefits package, including hospitalization and group insurance, 20 vacation days plus 12 additional leave days (32 days in total), meal and eco vouchers, a net allowance, and the option to lease a bike.
• Be part of a vibrant workplace culture with plenty of social events throughout the year: from summer BBQs and family days with great food and drinks to quiz nights, charity pancake events, and sporting activities such as our annual volleyball tournament and the C-Valley Run. And that's just the beginning!

Role Responsibilities

• Support R&D activities to develop and improve products, processes, and technologies.
• Operate the membrane pilot line in line with approved procedures and safety requirements.
• Prepare polymer dope solutions and perform membrane casting and post-treatment.
• Record process conditions, observations, and test results to ensure traceability and reproducibility.
• Troubleshoot pilot equipment and coordinate support for complex technical issues.
• Inspect, clean, maintain, and calibrate laboratory and pilot-scale equipment.
• Perform laboratory testing using specialized membrane characterization equipment.
• Maintain a safe workplace and comply with all quality and safety requirements.

Minimum Qualifications

• Bachelor’s or Master’s degree in Mechanical Engineering, Process Engineering, Materials Science, or a related technical discipline.
• Relevant technical experience in a laboratory, pilot-line, manufacturing, process-development, or comparable engineering environment.
• Strong mechanical and electrical aptitude and confidence working directly with complex equipment.
• Practical experience with chemical solution preparation or laboratory processes.
• Ability to work carefully and consistently with delicate materials and precise process conditions.
• Strong organizational and documentation skills.
• Professional proficiency in English.
• Willingness to work predominantly on-site in the Leuven laboratory.

Preferred Qualifications

• Experience commissioning, operating, or maintaining pilot-scale or production equipment.
• Experience calibrating laboratory instruments, process sensors, or measurement equipment.
• Familiarity with polymer processing, membranes, coatings, or thin-film technologies.
• Basic knowledge of statistics and experimental data analysis.
• Basic programming or data-processing skills, for example in Python, VBA, or similar tools.
• Experience developing operating procedures, test methods, or technical documentation.

Employment opportunities for positions in the United States may require use of information which is subject to the export control regulations of the United States. Hiring decisions for such positions are required by law to be made in compliance with these regulations. Applicants for employment opportunities in other countries must be able to meet the comparable export control requirements of that country and of the United States.

Donaldson Company has been made aware that there are several recruiting scams that are targeting job seekers. These scams have attempted to solicit money for job applications and/or collect confidential information, Donaldson will never solicit money during the application or recruiting process. Donaldson only accepts online applications through our Careers | Donaldson Company, Inc. website and any communication from a Donaldson recruiter would be sent using a donaldson.com email address. If you have any questions about the legitimacy of an employment opportunity, please reach out to talentacquisition@donaldson.com to verify that the communication is from Donaldson.

Our policy is to provide equal employment opportunities to all qualified persons without regard to race, gender, color, disability, national origin, age, religion, union affiliation, sexual orientation, veteran status, citizenship, gender identity and/or expression, or other status protected by law.