IFF is a global leader in flavors, fragrances, food ingredients and health & biosciences. We deliver sustainable innovations that elevate everyday products.

Health & Biosciences: Channeling our passion for nature and bioscience into sustainable, life-enhancing technologies that power innovative solutions across healthcare, food, consumer and industrial markets.

The role is based in Leiden, Netherlands (onsite role). Be part of a passionate, innovative, and collaborative team where together we can achieve greatness and make a real impact. Your potential is our inspiration.

We are looking for an enthusiastic Intern HPC Applications to join our Home & Fabric Care team starting in January 2027 for a full-time internship of at least 6 months. In this role, you will generate insights into enzyme performance in home care applications, with a primary focus on dish detergents. You will gain hands-on experience with detergent formulations, laboratory studies, and data analysis while supporting research that helps shape innovative and sustainable cleaning solutions.

Where You’ll Make a Difference

• Conduct laboratory experiments to evaluate enzyme performance in dish detergent formulations.
• Prepare, test, and analyze detergent formulations containing enzymes.
• Support research projects focused on understanding how formulation components impact enzyme performance.
• Generate, document, and interpret experimental results and technical data.
• Maintain accurate laboratory records and contribute to reporting activities.
• Collaborate with scientists and application specialists on ongoing development projects.
• Learn and apply industry-standard laboratory techniques and best practices.
• Support troubleshooting activities and propose improvements based on experimental findings.
• Contribute to a safe, organized, and efficient laboratory environment.

What Makes You the Right Fit

• Currently pursuing a BSc or MSc degree in Biotechnology, Biochemical Engineering, Biotechnology Engineering, Chemical Engineering, Biochemistry, or a related scientific field.
• Available full-time for a minimum internship period of 6 months starting January 2027.
• Strong interest in enzymes, biotechnology, and home care applications.
• Hands-on mindset with enthusiasm for laboratory work and experimentation.
• Analytical approach to problem-solving and data interpretation.
• Excellent communication skills in English, both written and verbal.
• Detail-oriented and able to work accurately in a laboratory environment.
• Proactive attitude with the ability to work independently while meeting project objectives.
• Strong collaboration skills and willingness to work in a multidisciplinary team.

How Would You Stand Out?

• Previous laboratory experience gained through coursework, research projects, or internships.
• Familiarity with detergents, enzymes, formulation science, or analytical techniques.
• Curiosity, adaptability, and a continuous learning mindset.

Why Choose Us?

• A challenging and meaningful internship within a global innovation leader.
• Hands-on experience working with enzyme technologies and real-world consumer applications.
• Opportunity to collaborate with experienced scientists and industry experts.
• Exposure to an international and diverse working environment.
• Professional development and learning opportunities throughout your internship.
• The chance to contribute to sustainable innovations that impact everyday life.

We are a global leader in taste, scent, and nutrition, offering our customers a broader range of natural solutions and accelerating our growth strategy. At IFF, we believe that your uniqueness unleashes our potential. We value the diverse mosaic of the ethnicity, national origin, race, age, sex, or veteran status. We strive for an inclusive workplace that allows each of our colleagues to bring their authentic self to work regardless of their religion, gender identity & expression, sexual orientation, or disability.

Visit IFF.com/careers/workplace-diversity-and-inclusion to learn more