Manufacturing Operator​/Technician; Immunology, BioTech

MAT Research is a pioneering company in the field of pyrogen testing, committed to ushering in a new era of ethical and accurate diagnostics. Since 2016, we have been leading the development of the Monocyte Activation Test (MAT), an animal‑free alternative to traditional Rabbit Pyrogen Tests. Our ready‑to‑use MAT kits offer a robust and highly reliable method for detecting a broad range of pyrogens in parenteral drugs.

ISO:9001:2015 certified, we uphold the highest standards of quality in all our products and services. By focusing on in‑vitro human‑based testing, we aim to drastically increase patient safety while saving hundreds of thousands of animal lives each year. We are steadfast supporters of the European Pharmacopoeia's vision to replace animal‑based tests with MAT by 2026. For more details, go to our job page.

As we continue to scale, we are looking for a Manufacturing Operator/Technician to join our growing team in Leiden, Netherlands. You will play a vital role in the production, quality assurance, and scale‑up of our MAT diagnostic kits. This role is ideal for professionals with a biotech manufacturing background, particularly in immunology‑focused production environments.

• Manufacturing & Production
• Equipment & Process Maintenance
• Quality Control & Compliance
• Material & Inventory Management
• Process Improvement & Reporting

• Execute end‑to‑end manufacturing processes, including preparation, formulation, and packaging of MAT kits.
• Follow Standard Operating Procedures (SOPs), batch records, and Good Manufacturing Practices (GMP) to ensure consistency and quality.
• Assist in the scale‑up of manufacturing processes, optimising workflow efficiency.
• Operate and maintain bioprocessing and immunoassay equipment.
• Perform routine calibration, sterilisation, and maintenance of manufacturing tools.
• Monitor and troubleshoot production deviations or process inefficiencies.
• Conduct in‑process quality control tests to ensure product reliability.
• Work closely with Quality Assurance (QA) teams to maintain compliance with ISO:9001:2015, GMP, and regulatory requirements.
• Maintain accurate batch records and production documentation to ensure traceability.
• Prepare, measure, and handle biological materials, PBMCs, reagents, and consumables.
• Ensure proper storage conditions and inventory tracking for raw materials and finished products.
• Support continuous improvement initiatives to optimise production workflows.
• Assist in developing new SOPs, technical documentation, and training materials.
• Report deviations and contribute to troubleshooting investigations and corrective actions.

• Living near Leiden or able to relocate without support.
• Bachelor’s (HLO/HBO) or Master’s (University) degree in biological/medical sciences or equivalent, preferably with a strong immunology/cellular background.
• Additional certifications in bioprocessing, GMP, or quality control are a plus.
• At least 3 years of hands‑on experience in biotech, pharmaceutical, or immunology‑based manufacturing, PBMC isolations, cellular assays, and analytical‑based assays (ELISA, Flow Cytometry) according to regulatory standards such as ICH is a pre.
• Familiarity with GMP, ISO:9001, and regulatory compliance for biotech production.
• Strong attention to detail with excellent documentation and data recording skills.
• Ability to work in a cleanroom or controlled laboratory environment.
• Problem‑solving mindset with the ability to troubleshoot and improve processes.
• Comfortable with inventory and logistics software, capable of managing resources efficiently.
• Excellent skills in technical writing and reporting.
• Fluent in English; proficiency in Dutch, German, or French is a major plus.
• Willing to hit the road for occasional business trips.

• Competitive base salary (Full‑time 40 h/week)
• 25 vacation days + national holidays