Senior Ecotoxicologist

About us

For well over a century, ExxonMobil has been at the heart of creating and growing a modern world. We embrace the power and promise of technology, pushing the boundaries of what's possible. For billions around the world, lives are better and last longer because of the innovative problem solving and reliable energy we provide. And when it comes to developing industrial solutions to reduce carbon emissions, ExxonMobil is truly the leader.

We don't stop at "good enough." We are committed to doing what's right, even if it's difficult or unpopular. We hold ourselves to high standards, challenge what's possible and invest in innovation to meet society's critical needs. Real change begins with bold questions, drive, and ambition. Here, your talent, determination and contributions shape how far you'll go and the impact you'll make along the way.


Our future success depends on exceptional people. We invest in developing talent through meaningful work, challenging assignments, mentorship, and experiences that help build the next generation of leaders.

Our Culture

We are uniquely ExxonMobil. Integrity, care, excellence, resilience and courage, these core values determine how we work every day. At ExxonMobil, our values aren't just words- they're how we show up, focused on delivering the right answer, the right way, every day.

What role you will play in our team

ExxonMobil Biomedical Sciences, Inc. (EMBSI) is seeking a Senior Ecotoxicologist (PhD/MS) to join our team in Antwerp. This role sits at the interface of industry and European regulation, applying advanced scientific expertise to support safe, sustainable, and commercially viable products-particularly for complex petrochemicals and related chemistries The individual will also be expected to support our global team in relevant areas of expertise.

The successful candidate will serve as a scientific leader in ecotoxicology and environmental risk assessment, integrating hazard, exposure, and fate data to inform regulatory decision-making. This position requires strong engagement across science, regulatory policy, and business functions, and includes collaboration with EU regulators, industry consortia, and internal stakeholders.

About you

Skills and Qualifications

• PhD or MS in Ecotoxicology, Environmental Science, Toxicology, or a related field
• 10+ years of relevant work experience
• Demonstrated expertise in ecotoxicology and environmental risk assessment
• Strong understanding of chemical fate, persistence, and bioaccumulation assessment
• Experience with EU regulatory frameworks, including REACH and CLP
• Ability to integrate complex datasets across hazard, fate, exposure, and ecological systems
• Strong written and verbal communication skills, including the ability to translate science into regulatory strategy and business impact
• Ability to work effectively across scientific, regulatory, and business environments

Preferred Qualifications/ Experience

• Experience with UVCBs, petrochemical substances, and difficult to test substances
• Familiarity with New Approach Methodologies (NAMs) and modeling approaches (e.g., QSAR, probabilistic methods)
• Experience engaging with regulatory agencies, ECHA expert groups, or industry associations (e.g., CONCAWE, Cefic, ECETOC)
• Demonstrated ability to contribute to regulatory strategy and advocacy

What you will do

Ecotoxicology & Risk Assessment Leadership

Provide technical leadership in the application of environmental risk assessment methods to regulatory decision-making:


• Design and interpret PMT/PBT/vPvB/mobility assessments for complex substances


• Integrate hazard, exposure, and fate data to assess product environmental impacts


• Ensure scientific robustness and regulatory alignment of environmental risk assessments

Regulatory Strategy & Framework Support

Support compliance and strategic engagement with EU regulatory frameworks:


• Contribute to REACH, CLP, and SVHC processes, including substance technical advocacy


• Develop and communicate regulatory strategies for complex chemistries


• Translate scientific findings into clear and defensible regulatory positions

External Engagement & Scientific Representation

Engage with regulatory and scientific communities:


• Interface with EU regulators and ECHA expert groups


• Participate in industry consortia (e.g., CONCAWE, Cefic, ECETOC)


• Represent EMBSI in technical discussions and collaborative initiatives

Innovation in Risk Assessment

Advance next-generation scientific approaches:


• Support implementation of Next-Generation Risk Assessment (NGRA) frameworks for petroleum UVCBs


• Apply and evaluate NAMs and alternative methodologies


• Contribute to evolving regulatory science for complex substances

Strategic Impact & Decision Support

Support business and regulatory outcomes through scientific insight:


• Ensure regulatory approaches are fit-for-purpose for complex chemistries


• Help prevent misclassification, unnecessary testing, and operational constraints


• Enable market access and product stewardship excellence

Testing Programs & Data Generation

Support development and execution of testing strategies:


• Design and contribute to testing programs for petroleum related chemistries


• Ensure data generation aligns with regulatory requirements and scientific best practices


• Evaluate and incorporate existing and new datasets into regulatory submissions

Your benefits

An ExxonMobil career is one designed to last. Our commitment to you runs deep: our employees grow personally and professionally, with benefits built on our core categories of health, security, finance, and life.


We offer a wide range of benefits including competitive pay, flexible work arrangements, a health insurance plan, an interesting pension plan, etc.


Moreover, team mates who support and inspire you, the flexibility to explore multiple challenges and roles.


Thrive in our company culture: open, with an international mindset and down to earth. Our hands-on approach, job rotation system and regular training will enable you to learn and develop your talents continuously.

Work location

This position is based in Antwerp, Belgium with expected, regular, business travel to Brussels.

Stay connected with us

• Learn more at our website
• Follow us on LinkedIn
• Like us on Facebook (Belgium)
• Subscribe our channel at YouTube

Nothing herein is intended to override the corporate separateness of local entities. Working relationships discussed herein do not necessarily represent a reporting connection, but may reflect a functional guidance, stewardship, or service relationship.

Exxon Mobil Corporation has numerous affiliates, many with names that include ExxonMobil, Exxon, Esso and Mobil. For convenience and simplicity, those terms and terms like corporation, company, our, we and its are sometimes used as abbreviated references to specific affiliates or affiliate groups. Abbreviated references describing global or regional operational organizations and global or regional business lines are also sometimes used for convenience and simplicity. Similarly, ExxonMobil has business relationships with thousands of customers, suppliers, governments, and others. For convenience and simplicity, words like venture, joint venture, partnership, co-venturer, and partner are used to indicate business relationships involving common activities and interests, and those words may not indicate precise legal relationships.

Job Segment: Sustainability, Energy, Research