Senior Polymer Rheology Scientist & Analytical Specialist

ExxonMobil; Spring (TX); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Pension Plan

Savings Plan

Workplace Flexibility

Medical, dental, and vision plans

Wellbeing programs

Job summary

ExxonMobilBaytown seeks a PhD-level polymer characterization expert to lead advanced analytical work, focusing on rheology, polymer fractions, and structure–property relationships. You will collaborate across development, manufacturing, and commercial teams to translate insights into scalable solutions and product differentiation.

The role emphasizes technical leadership, methodological development, and impact on high‑volume production, with opportunities to contribute to IP, publications, and

Qualifications

• PhD in Polymer Science, Materials Science or Chemical Engineering with Polymer Physics background.
• 5+ years of experience in polymer characterization with strong structure–property correlations in polymers (thermoplastics, thermosets, blends, block copolymers).
• 3+ years hands-on experience with rheological instrumentation and testing on plastics using rotational rheometers, capillary rheometers, and DMA.
• Strong knowledge of polymer fractionation: multidetector GPC, TREF, and CFC.
• Strong knowledge of rheological models to predict processing behavior and performance.
• Understanding of structure–property relationships in polymers and their rheology.
• Ability to correlate rheological data with processing conditions and product performance.
• Ability to identify root causes of processing issues (e.g., melt fracture, die swell, surface finish, degradation).
• Excellent analytical thinking, data interpretation, and problem solving.
• Strong communication, collaboration, and technical leadership.
• Self-motivated, organized, able to manage multiple priorities in dynamic environment.

Responsibilities

• Lead advanced analytic characterization to solve technical challenges and drive product innovation.
• Collaborate with cross-functional teams to translate analysis into business insights.
• Provide technical leadership in rheology and polymer analysis.
• Develop, validate, and implement analytical methods supporting development and manufacturing.
• Serve as SME for rheology and fractionation methods, including troubleshooting and continuous improvement.
• Apply advanced tools to link polymer microstructure with mechanical and rheological properties.
• Engage with customers and internal teams to address technical needs and growth opportunities.
• Advance capabilities by evaluating new characterization technologies and methodologies.
• Share technical findings and market feedback to guide future strategies.
• Monitor industry trends to guide capability development and innovation.
• Communicate results to scientific, manufacturing, commercial, and customer audiences.
• Contribute to IP, publications, and conferences.

Skills

Polymer characterization

Rheology expertise

GPC/TREF/CFC

DSC/TGA knowledge

Structure-property relations

Data analysis

Technical leadership

Team collaboration

Education

PhD in Polymer Science

Tools

Rheometer

Capillary rheometer

DMA

GPC

TREF

CFC

Job description

ExxonMobilBaytown seeks a PhD-level polymer characterization expert to lead advanced analytical work, focusing on rheology, polymer fractions, and structure–property relationships. You will collaborate across development, manufacturing, and commercial teams to translate insights into scalable solutions and product differentiation.

The role emphasizes technical leadership, methodological development, and impact on high‑volume production, with opportunities to contribute to IP, publications, and