Chemical Process Operator – Pilot Plant

About the role

Seprify transforms cellulose, the earth's most abundant biopolymer, into high‑performance, fully natural ingredients. As a Chemical Process Operator you will join a small, hands‑on team that runs the company’s pilot plant under the guidance of a Chemical Engineer. You will be responsible for safe, reliable operation of state‑of‑the‑art reactors, mixing tanks, drying units and related equipment.

Key responsibilities

• Operate the pilot‑plant facility, including reactors, mixing tanks, heating/cooling systems, mechanical processing equipment and drying units.
• Maintain and modify automated batch units as needed and perform routine equipment maintenance.
• Handle raw materials and chemicals safely using a forklift, loading and unloading large loads.
• Perform routine material characterisation such as pH, turbidity, particle size and solid‑content measurements.
• Report daily to the Engineering Lead and collaborate closely with the pilot‑plant team.

Required profile

• Qualified as a chemical lab technician (Chemielaborant EFZ) or equivalent.
• More than 3 years experience in process operation within cosmetics, pharmaceutical or food processing.
• Hands‑on experience with pilot‑scale equipment (reactors, washing, drying) and strong safety knowledge for handling acids, bases and solvents.
• Ability to work under pressure, meet deadlines and thrive in a fast‑paced startup environment.
• Team‑player, self‑motivated, curious and adaptable.

Required skills

• Operation of pilot‑scale reactors and automated batch units.
• Forklift certification and safe material handling.
• Material characterisation techniques (pH, turbidity, particle size, solid content).
• Equipment maintenance and troubleshooting.
• Safety procedures for high‑concentration acids, bases and solvents.

What we offer

• Hands‑on experience in a cutting‑edge Swiss startup with award‑winning technology.
• Permanent position with growth opportunities in chemical engineering.
• Opportunity to contribute to an impact‑driven chemical production strategy.
• Interdisciplinary team environment that broadens knowledge and skills.
• Participation in the entrepreneurial journey from process development to commercialization.