Principal Scientist Bioanalytics

Join us as we transform immunology and deliver medicines that help autoimmune patients get their lives back. argenx is preparing for multi-dimensional expansion to reach more patients through a rich pipeline of differentiated assets, led by VYVGART, our first-in-class neonatal Fc receptor blocker approved for the treatment of gMG, and with the potential to treat patients across dozens of severe autoimmune diseases.

We are building a new kind of biotech company, one that maintains its roots as a science-based start-up and pushes our commitment to innovate across all corners of our business. We strive to inspire and grow our company, our partnerships, our science, and our people, because when we do, we deliver more for patients.

For the expansion of the bioanalytical team, argenx is actively looking for a highly motivated Principal Scientist Bioanalytics with extensive expertise in clinical drug development of large molecules. The candidate will serve as the Bioanalytical (BA) lead and subject matter expert (SME) for one or more argenx compounds and will represent the BA function in (late-stage) clinical development teams. The Principal Scientist will provide direction for bioanalytical strategies (PK/PD and immunogenicity), ensure alignment with global regulatory expectations, and drive the bioanalytical contributions to regulatory plans and submissions in close partnership with internal and external stakeholders.

In addition to excellent communication skills, this position requires demonstrated scientific leadership, deep knowledge of bioanalytical method development and validation (PK/PD and immunogenicity), and strong understanding of global regulatory requirements for late-stage development and registration.

The candidate should have substantial industry experience in bioanalytical sciences, including experience supporting late-stage clinical development and regulatory submissions.

This role is based in Ghent, Belgium, and requires on-site presence several days a week.

Along with your CV, we kindly ask that you submit a motivation letter that demonstrates why you're a great fit for this role.

Responsibilities

• Responsible for defining bioanalytical strategies within assigned argenx program(s) and ensuring their operational execution and implementation.
• Engage in expert interactions with partners executing bioanalytical activities for projects (e.g., 3rd party labs), and collaborate with other development functions to achieve program goals (e.g., Global Sample Management, Clinical teams).
• Be a source of and share specific technical expertise within the PharmToxBA group and the assigned project team (e.g., PK/PD and immunogenicity bioanalysis).
• Prepare, review, and contribute to regulatory documentation linked to Bioanalysis ; serve as argenx SME in interactions/meetings with regulatory authorities.
• Coach bioanalytical team members and help ensure the team maintains excellent knowledge in specific aspects of bioanalytical methods and relevant regulations.
• Ensure BA-related processes are executed correctly and smoothly; contribute to quality aspects and inspection readiness for internal and outsourced activities.

Profile

• PhD degree in a relevant scientific discipline (or equivalent experience).
• Typically 7+ years of relevant industry experience in bioanalytical sciences (large molecules), including responsibility for bioanalytical activities for clinical programs and support of late-stage development.
• Strong expertise in ligand binding assay platforms; experience with LC-MS for large molecules is a plus.
• Extensive experience in development and validation of PK, PD, or immunogenicity assays for large molecules, with a strong knowledge of applicable global regulatory guidance.
• Demonstrated understanding of GCP/GCLP expectations for bioanalysis of human samples and the ability to ensure inspection readiness across internal and outsourced activities.
• Proven experience leading outsourced bioanalytical work, including 3rd party lab selection, contracting support, governance, and performance management.
• Strong stakeholder management skills; proven experience representing Bioanalytics in clinical development teams and engaging as an expert counterpart with external partners.
• Strong experience preparing and reviewing bioanalytical regulatory documentation and contributing to regulatory plans/submissions; comfortable serving as SME in meetings with regulatory authorities.
• Excellent scientific judgment and problem-solving skills; able to drive resolution of complex, cross-functional issues in a fast-paced environment.
• Strong emphasis on quality, compliance, and data integrity; experienced in ensuring BA-related processes run smoothly and maintaining inspection readiness (internal and outsourced).
• Demonstrated coaching mindset; supports the development of bioanalytical team members and helps sustain strong knowledge of key BA methods and applicable regulations.
• Proactive and flexible, capable of thriving in the dynamic environment of a fast-growing biotech company, with a strategic mindset and a track record of delivery.

Offer

• A full-time position in a successful, dynamic, and rapidly growing biotech company.
• This position requires on-site presence multiple days per week. Therefore, candidates must be located in Belgium (preferred) or be willing to relocate to Belgium, as remote work from outside Belgium is not an option.
• A competitive salary package, accompanied by comprehensive benefits.
• Opportunity to be part of a cross-disciplinary team involved in the (pre-)clinical development of therapeutic antibodies.
• Exposure to all aspects of pre-clinical and clinical development, both within the company and through collaborations with external vendors, contract partners, and the broader scientific community.

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The annual base salary hiring range for this position is €100,000.00 - €137,500.00 EUR

This job is eligible to participate in our short-term and long-term incentives program.

The hiring range displayed above is the range of possible base pay compensation that argenx believes in good faith it will pay for this role at the time of this posting. The hiring range is based on the job grade for this position. Individual compensation paid within this range depends on a variety of factors, including, but not limited to, internal equity, prior education and experience, job-related knowledge and demonstrated skills. argenx may pay more or less than the posted range and this range may be modified in the future.

At argenx, all applicants are welcomed in an inclusive environment. They will receive equal consideration for employment without discrimination on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, or any other applicable legally protected characteristics. argenx is proud to be an equal opportunity employer.

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