Job Opening ID:  34241

Senior Scientist II

Permanent contract

USA - Bristol, PA, US

May 13, 2026

Syensqo is all about chemistry. We’re not just referring to chemical reactions here, but also to the magic that occurs when the brightest minds get to work together. This is where our true strength lies. In you. In your future colleagues and in all your differences. And of course, in your ideas to improve lives while preserving our planet’s beauty for the generations to come.

We are looking for:

Senior Scientist II has a key role in the PhysChem team supporting Performance & Care Techno Programs, Corporate R&I Platforms, market lab roadmap/VCP projects, defining and advising mode of action for key technologies, and subsequent customer support and manufacturing developments. To define and carry out projects & experimental programs to ensure the transfer of project results to internal and external customers, to enable the Company to grow the business and enhance its industry leadership position.

We count on you for:

  • Follow and adhere to Company safety policies and procedures for the site and the lab.

  • Execute research projects and  respond to customer/stakeholder needs.

  • Prepare and handle samples, reagents and laboratory materials.

  • Maintain cleanliness and organization of the lab, including proper disposal of waste

  • Record and analyze data accurately, maintain detailed and up-to-date lab records in ELN following Syensqo policies. Staff Scientist would have full appropriation of ability to acquire and analyze research data within their own domain of expertise and process them in a way useful for the research hypotheses or goals.

  • Define technical scope and targets for the different projects and independently translate them into an optimal set of R&D experiments.

  • Technology transfers to business/market labs and other stakeholders.

  • Advice and support to external and/or internal customers.

  • Technical reports, presentations and oral communication to the stakeholders

  • Technical IP support and patents.

  • The Senior Scientist II contributes to the mission of the Phys Chem Cell to decipher the relationship between molecular architecture and application properties of polymers and surfactants, including characterization of their interactions and self assemblies, to guide new product development with established and emerging chemistries. 

  • The Scientist will help develop and contribute to the core competency of Rheology of viscoelastic systems at the center, including but not limited to  sustainable biobased/biodegradable polymers in solution such as novel hydrogels.

  • The Senior Scientist II will characterize polymer/surfactant solution structure and rheology relationships and develop computational models to describe the rheological behavior.

  • The Senior Scientist would develop a mechanistic understanding to fine tune the chemical structures and/or to direct formulation and position new chemicals in the targeted application fields.

  • Exchange information with others in an oral and written way, to adapt the communication to specific audiences, and to use appropriate tools and means.

  • Mentor, manage or supervise other junior researchers, team members, scientists or student interns or temporary employees. The ability to work in cross-functional teams is important.

You will bring:

  • Ph.D. with 0-5+ yrs of experience.

  • Demonstrated background, in-depth knowledge and experience specialized in rheology of complex fluids along with at least one of the key domains of the Group: physical chemistry of soft matter and formulation science, physics, chemistry, polymers/materials science and technology, chemical engineering, analytical sciences & characterization or a related multidisciplinary field.

  • Additional experience in computational modeling of rheology of fluids and data-science to further the understanding of complex systems would be preferred.

  • Multiple publications in peer reviewed journals and/or patents in the above fields

  • Ability to autonomously contribute to a project as a team member or leader, in a successful and effective way, making optimal use of available resources and applicable concepts, methods and tools.

  • Expert knowledge of experimental tools, models and techniques in at least one of the key domains.

  • Experience in advanced characterization techniques such as SAXS/WAXS/Diffraction, scattering DLS/ SLS, SANS and microscopy would be preferred. 

  • Track record of supervising or mentoring other research team members, scientists or students.

  • Physical abilities.

You will get:

 

  • Competitive salary and benefits package
  • The U.S. base salary range reasonably expected to be paid for this position is $99,000 to $120,000 per year. Since actual compensation packages are based on a variety of factors unique to each candidate we may ultimately pay more or less than the posted base salary range. Total compensation for this role also includes bonus and/or other incentives.
  • 16, or more weeks, of maternity/paternity and co-parenting leave, according to local regulations
  • Training platform for all employees
  • Free well-being sessions (physical and psychological)

.

 

Additional information:

 

  • Must be able to stand or sit for extended periods while performing laboratory procedures/tasks.

  • Lifting and carrying materials up to 50 lbs may be required.

  • Labwork may require use of specialized PPE (such as respirators) for safe handling of chemicals, biologicals or pesticides.

About us

  • Syensqo is a science company developing groundbreaking solutions that enhance the way we live, work, travel and play. Inspired by the scientific councils which Ernest Solvay initiated in 1911, we bring great minds together to push the limits of science and innovation for the benefit of our customers, with a diverse, global team of more than 13,000 associates. Our solutions contribute to safer, cleaner, and more sustainable products found in homes, food and consumer goods, planes, cars, batteries, smart devices and health care applications. Our innovation power enables us to deliver on the ambition of a circular economy and explore breakthrough technologies that advance humanity.
  • At Syensqo, we seek to promote unity and not uniformity. We value the diversity that individuals bring and we invite you to consider a future with us, regardless of background, age, gender, national origin, ethnicity, religion, sexual orientation, ability or identity. We encourage individuals who may require any assistance or accommodations to let us know to ensure a seamless application experience. We are here to support you throughout the application journey and want to ensure all candidates are treated equally. If you are unsure whether you meet all the criteria or qualifications listed in the job description, we still encourage you to apply.
  • Syensqo is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other legally protected characteristics.