About Hapa

Hapa is a leading organization headquartered in Volketswil, Switzerland. As a key player in the late-stage customization and on-demand printing solutions, we specialize in the pharmaceutical packaging industry. Our business portfolio encompasses a wide range of innovative printing solutions, making blister packaging more flexible, less complex, and more cost- and waste-efficient. We strive to continuously expand our offerings and enhance our capabilities to meet the evolving needs of our customers. For more detailed information about Hapa and its comprehensive business landscape, please visit www.hapa.ch.

Hapa is part of Coesia, a group of innovation-based industrial and packaging solutions companies operating globally, headquartered in Bologna, Italy. Coesia operates in 34 countries with 21 different companies and employs over 8,000 people as of 2025.

About the Role

Are you eager to gain hands‑on experience in formulation chemistry and contribute directly to real product development? We are currently looking for an intern to join our team! Join our R&D team as an Ink Formulation Intern, where you will support an active inkjet ink development project and collaborate closely with experienced scientists and chemists.

In this internship, you will:

• Formulate inkjet inks using established, developmental, and experimental protocols
• Prepare test batches and carry out laboratory‑scale trials
• Measure and analyse key physical properties (e.g., viscosity, surface tension, stability)
• Document and interpret experimental and analytical results
• Present findings and progress to R&D team members
• Contribute to the advancement of an ongoing ink development project

This internship lasts more than 6 months and provides an excellent opportunity for students seeking meaningful R&D experience in an industrial environment.

What You Need to Be Successful

• Currently studying Chemistry, Chemical Engineering, Materials Science, Printing Technology, or a related field
• Interested in formulation, materials development, or product innovation
• Detail‑oriented with strong practical laboratory skills
• Curious, motivated, and able to work independently as well as in a team
• Fluency in English is required; German is a plus

What You’ll Gain

• Hands‑on formulation experience
• Insight into inkjet ink technologies and testing methodologies
• Exposure to R&D processes, documentation standards, and cross‑functional collaboration
• A supportive, international environment that encourages learning and professional development
• The ability to apply theoretical chemistry to real‑world product development
• Experience working in an industrial, cooperative, and globally connected organization

Join the Team!

If you are enthusiastic about formulation chemistry and excited to contribute to innovative R&D projects, we look forward to your application.

Please submit your application via our career site, as email applications cannot be considered. External agencies are kindly requested not to contact the company regarding this position.

Coesia is an equal-opportunity employer and embraces diversity and inclusion.

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