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Senior Scientist

Syensqo

Stamford, CT · Posted November 6, 2026

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About the job

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.

Role and Responsibilities

We are seeking a motivated, detail-oriented and innovative Senior Scientist to join our Polymer Additives team.

Hands-on technical lead on new NPI (New Product Introduction) product development meeting targeted technical performance

Lead cross-functional project teams to develop and commercialize new NPI products into core and adjacent markets as Project Leader following the stage-gate process

Investigate and develop new additive formulations providing leading edge performance

Develop and analyze data, drawing sound conclusions and uncovering unexpected performance benefits

Hands-on participation in lab operations including polymer processing, data acquisition, data summary, data analysis, preparation of presentations and reports

Document, maintain and update laboratory project database

Identify IP potential for new technologies and file patent application as appropriate

Prepare and present presentation on new products at conferences

Write company reports and monthly reports

Develop high level of industry knowledge in all core market segments: e.g. building & construction, molding, agriculture, automotive, etc.

Engage in innovation dialogue with key customers

Maintain calibration and maintenance schedule for designated PA laboratory equipment

Adhere to all applicable safety regulations, company policies, and established procedures to maintain a safe and compliant work environment.

Experience and Skills

You will bring:

Minimum B.S. degree in chemistry, polymer science & engineering, or relevant science or engineering field, advanced degree preferred

Minimum of 10 years of relevant technical work experience with a bachelor’s degree, or a minimum of 5 years of relevant technical work experience with an advanced degree.

Proven chemistry and application knowledge of most additives used in polymers, especially for light and heat stabilization

Polymer formulation and polymer processing experience preferred

Polymer Processing: extrusion, injection molding, rotomolding, etc.

Polymer Testing: MFI, color, gloss, physical properties, etc.

Testing Protocols: artificial weathering, thermal aging, etc.

Knowledge of polyolefin chemistry, production processes, properties, fabrication processes, and their use preferred

Practical knowledge and experience in intellectual Properties (IP)

Demonstrated Project Leadership skills in leading cross-functional project teams from product development to commercialization following the stage-gate (NPI) process

Strong track record of success in developing and launching new products

Understanding of application of AI / Machine Learning tools to new product and process development is a strong plus.

Skills and competencies:

Project leadership skills

Organic chemistry

Polymer science and engineering

Data analysis: This role requires special insightful analysis of data

Analytical data interpretation: TGA/DSC, SEM, HPLC/GC, FTIR, UV-Vis, etc.

Excellent problem solving and troubleshooting skills

Excellent communication and presentation skills

Ability to bring new ideas and concepts to a project

Ability to engage in innovation dialogues with customers

Work well in a team setting

High level of creativity and curiosity

Proactive, collaborative, entrepreneurial, dynamic, flexible, and able to multitask

Highly motivated with self-driven learning capacit

Customer focus - dedicated and sensitive to the customer needs

What We Offer

We offer the opportunity to join an exciting growth company

A full range of benefits as expected of a successful company

Opportunities for growth and learning

Encouraging a diverse and inclusive workplace culture that values and respects individual differences and backgrounds

Long-lasting excellent customer relations, self-dependent working, and a variety of tasks in one of the world’s leading chemical companies.

Competitive salary and benefits

The U.S. base salary range reasonably expected to be paid for this position is $98,000.00 to $140,000.00 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)

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.