
Material Preparation Employee (m/f/d)
Our Material Preparation Department is the heart of production! It ensures that the Extrusion Blow Moulding (EBM) process is reliably, cleanly, and efficiently supplied with all required raw materials at all times. To strengthen our team, we are looking for a committed employee (m/f/d) who takes responsibility and works with us to ensure smooth operations.
Your responsibilities
- Ensure timely material supply for the blow moulding production;
- Regularly check and replenish material and batch stocks;
- Provide raw materials, batches, and regrind;
- Set up and monitor colouring equipment, including documentation;
- Determine and record consumed material quantities;
- Goods receipt: unloading, checking delivery documents, and reporting discrepancies;
- Proper and clean storage of raw materials and batches;
- Clean colouring equipment, mills, and platforms;
- Conduct regular inventory checks of raw materials and regrind.
What you bring
- Experience in a production environment or technical field desirable;
- Technical understanding and willingness to learn;
- Careful, reliable, and structured working style;
- Strong sense of quality and responsibility;
- Team spirit and good communication skills;
- Willingness to work shifts is essential.
What we offer
We offer you a long-term perspective in a growing company with a stimulating and varied working environment. Here, you can contribute your expertise using modern equipment and continue to develop professionally. As a family-run business, we value flat hierarchies and short decision-making paths – teamwork is just as important to us as your personal freedom to grow. Also:
- Performance-based pay and attractive social benefits (e.g. capital-forming benefits, direct insurance via salary conversion);
- 30 days of annual leave, plus holiday allowance;
- A standard five-day working week;
- Attractive overtime compensation, either as pay or time off in lieu (TOIL);
- Personal development opportunities and internal career planning;
- Provision of full workwear, including safety shoes;
- Laundry allowance;
- Job bike leasing;
- Recreational allowances;
- Corporate benefits scheme;
- Company health management.

About Joh. Sieben GmbH
Joh. Sieben GmbH is a dynamic, medium-sized company, based in Heinsberg. With around 100 dedicated employees, we are proud to produce high-quality plastic packaging for renowned clients. Our core focus lies in Extrusion Blow Moulding (EBM) and Two-stage Injection Stretch Blow Moulding (ISBM) – all within the B2B sector.
Our products are primarily used in the cosmetics industry, the food sector, and by manufacturers of chemical-technical cleaning and household products.
