Chemist R&D

"Expect to grow", personally and professionally: At Siegfried, we offer exciting challenges and ample opportunities to showcase your talents. As a trusted and respected partner to the pharmaceutical industry, we uphold the highest standards in safety, quality and sustainability, while fostering a culture that empowers you to thrive. Join a rapidly expanding global company, where diverse perspectives and experiences come together in a collaborative environment. Here, you'll find a workplace that values both collective success and your individual contributions—offering long-term opportunities to grow and make an impact.

Chemist R&D

Your Role:

As a Senior Chemist R&D, you will play a key role in developing and optimizing robust chemical processes for clinical and commercial pharmaceutical products. Working within a multidisciplinary environment, you will combine scientific expertise, project leadership, and industrial mindset to deliver scalable and sustainable manufacturing solutions.
Your responsibilities will include:

• Leading the development, optimization, and troubleshooting of chemical manufacturing processes.

• Supporting process scale-up and technology transfer from laboratory to pilot plant and commercial manufacturing.
• Driving continuous improvement initiatives to increase process robustness, efficiency, quality, and sustainability.
• Applying Quality by Design (QbD), Design of Experiments (DoE), Process Analytical Technology (PAT), and scientific data analysis to accelerate process understanding.
• Acting as the technical lead for customer projects, providing scientific expertise during client meetings and technical discussions.
• Collaborating closely with Process Research, Analytical Development, Production, Quality Assurance, Regulatory Affairs, Engineering, and HSE.
• Preparing technical documentation including development reports, risk assessments, technology transfer packages, and regulatory support documents.
• Identifying innovative technologies and new scientific approaches to strengthen process development capabilities.
• Mentoring junior scientists and sharing technical knowledge across the organization.

• Contributing to the strategic development of Process Development through innovation, operational excellence, and continuous improvement.

Your Profile:

You are a passionate scientist with strong industrial experience and a collaborative mindset. You enjoy solving complex technical challenges while working in an international and multidisciplinary environment.

You bring:

• PhD or MSc in Organic Chemistry, Process Chemistry or a related scientific discipline.

• Significant experience (5+ years) in pharmaceutical process development, ideally within a CDMO or GMP manufacturing environment.

• Strong expertise in synthetic organic chemistry, reaction mechanisms, process optimization, and scale-up.

• Good knowledge of Design of Experiments (DoE), Quality by Design (QbD), Process Analytical Technology (PAT), and statistical data analysis.

• Experience supporting technology transfer from laboratory to pilot or commercial manufacturing.

• Solid understanding of GMP requirements and ICH guidelines.

• Excellent problem-solving and scientific reasoning skills.

• Strong communication and stakeholder management abilities, including customer interactions.

• Ability to manage multiple priorities while maintaining high scientific standards.

• Fluency in English and French.

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