About us

At Ardena, we’re helping shape the future of medicine. Our teams work on the development of innovative and complex therapies that can improve the lives of patients around the world.

As a global Contract Development and Manufacturing Organization (CDMO) and Contract Research Organization (CRO), Ardena partners with pharmaceutical and biotech companies to turn scientific ideas into real treatments. From early development to manufacturing and regulatory support, we help bring new medicines to market faster and with the highest quality standards.

With more than 750 colleagues across Europe and the United States, Ardena offers expertise in drug substance and drug product development, manufacturing, bioanalytical services, clinical logistics, fill & finish, and CMC regulatory support.

But what truly makes Ardena special is our people. We are a science-driven and people-focused company where collaboration, innovation, and curiosity are encouraged.

We offer an international environment where you can learn, take initiative, and grow your career across teams, functions, and locations. Our way of working is guided by our CARE values: Communicative, Accountable, Reliable, and Excellent. These values shape how we collaborate, solve challenges, and support each other every day.

At Ardena, you’re not just building your career — you’re helping build the future of medicine.

For the Ardena branch based in Gent, Belgium, our CMC Regulatory Team is looking for

(Associate) Scientific Writer – CMC Drug Substance

The CMC Regulatory team is dedicated to delivering customized and timely regulatory drug development services to our valued customers. Our support spans all aspects of Chemistry, Manufacturing & Control (CMC) writing activities across various stages of the drug development process. We collaborate closely with other Ardena teams, providing CMC advice throughout drug development and dossier submission.

Position Overview:

As (Associate) Scientific Writer – CMC Drug Substance, you will play a pivotal role in the drug substance process development by contributing to the creation of qualitative documents. This position offers a fantastic opportunity to collaborate with experienced colleagues and gain firsthand experience in the dynamic drug substance field.

Key Responsibilities:

• Write and compile scientific and technical documents related to the drug substance development of both new chemical entities and biological products, such as:

  • synthesis criticality assessments

  • starting material justification reports

  • impurity management reports

  • documents related to upscaling of the synthesis process

  • etc.

These documents may be used as basis for global regulatory submissions                     (clinical trial applications, marketing applications, etc.)

• Establishing the control strategy for the drug substance manufacturing (specifications)

• Nitrosamine and mutagenicity assessments per ICH M7

• Alignment of the documents to ensure compliance with the latest ICH guidelines

• Project management/coordination of technical writing and reviewing activities

Your Profile:

Education and Interest:

• Master’s degree or Ph.D. in chemistry or biotechnology.

• Affinity with organic chemistry and drug substance development is a plus.

• Passion for scientific and technical writing for chemical and biopharmaceutical products.

• Strong interest in drug development and regulatory guidelines.

General Skills:

• Proficient in MS Office (primarily Word and Excel.

• Very good communication skills (both written and spoken).

• Fluent in written and spoken English.

• Strong scientific writing skills.

• Attention to detail and accuracy.

• Eager to learn and ability to work independently when necessary.

• Problem-solving skills with a quality-conscious attitude.

• Well-organized with the ability to work in a dynamic environment.

• AI savviness is a must
  

What We Offer:

• Opportunity to contribute to the development of new drugs.

• A supportive learning environment for skill development and growth.

• Inv