Toxicologist

Excelya· PV & Safety
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📍 Saclay, Île-de-France, France

About this role

Join Excelya, where Audacity, Care and Energy define who we are and how we work. We believe in creating ambitious solutions and fostering an inclusive environment where collaboration and individual growth go hand in hand.

This role offers an exciting opportunity to join a dynamic and ambitious team supporting drug development programs from preclinical stages through market authorization. You will provide toxicology expertise related to impurity assessment, genotoxicity strategies, and health-based exposure limits within a highly collaborative and regulated environment.

Key Responsabilities :

  • Support non-clinical safety strategies related to drug impurities, extractables & leachables, and genotoxic impurities.
  • Assess and qualify impurities throughout the drug development lifecycle in accordance with ICH Q3A/B/C and ICH M7 guidelines.
  • Develop impurity risk assessments and support safety evaluations.
  • Contribute to the preparation of regulatory documentation and scientific justifications.
  • Provide toxicological expertise for the management of potential genotoxic impurities.
  • Calculate Permitted Daily Exposures (PDEs) and other health-based exposure limits.
  • Support occupational toxicology activities, including the derivation of occupational exposure limits.
  • Collaborate closely with CMC teams, external partners, and cross-functional project stakeholders.
  • Communicate toxicology strategies and recommendations effectively across project teams.

  • Master's degree or PhD in Toxicology, Biology, Pharmacology, or a related scientific discipline.
  • Experience in toxicology and supporting pharmaceutical development programs is highly desirable.
  • Strong knowledge of ICH Q3A/B/C and ICH M7 guidelines.
  • Proven experience with genotoxicity assessment strategies.
  • Hands-on experience with genotoxicity testing and in silico toxicology tools.
  • Experience in health-based exposure limit derivation (PDE, HBEL, OEL).
  • Understanding of impurity qualification and risk assessment methodologies.
  • Fluent English (written and spoken).

Why join us?

At Excelya, we combine a passion for science with the enthusiasm of teamwork to redefine excellence in healthcare.

Here's what makes us unique:

We are a young and ambitious healthcare company, bringing together 900 Excelyates, driven by the goal of becoming the leading mid-sized CRO in Europe, while offering the best employee experience.

Our "one-stop provider" service model—combining full-service, functional service provider, and consulting—allows you to grow through diverse and stimulating projects. By collaborating with leading experts, you will contribute to the development of scientific, operational, and human knowledge, all in service of improving the patient journey.

Excelling with kindness means evolving in an environment that values ​​your natural talents, encourages boldness, pushes boundaries, and cultivates your potential, so that you can fully contribute to our shared mission.

Frequently Asked Questions

Is the salary disclosed for the Toxicologist position at Excelya?
The salary for this Toxicologist role at Excelya is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Toxicologist position at Excelya located?
This Toxicologist role at Excelya is based in Saclay, Île-de-France, France. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Toxicologist at Excelya belong to?
This Toxicologist position is part of the PV & Safety department at Excelya. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Toxicologist position at Excelya?
Click the "Apply Now" button on this page. You will be redirected to Excelya's official application portal hosted on workable where you can submit your application directly.
When was the Toxicologist job at Excelya posted?
This Toxicologist position at Excelya was posted on Sep 15, 2026. Apply as soon as possible — early applications are often reviewed first.
Toxicologist
Excelya
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