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ExxonMobil

Produces oil, gas, fuels and chemical materials

Analytical Testing & Application Scientist - Polymer Rheology

Physical SciencesUpdated on Nov 14
Full-timeBaytown, TX, USANo salary listedIn-person

About the Job

Requirements

  • A PhD in Polymer Science, Materials Science, or Chemical Engineering with a Polymer Physics background is required.
  • At least 5 years of experience in polymer characterization and a strong background in structure-property correlations in polymeric materials, including thermoplastics, thermosets, blends, and block copolymers are required.
  • At least 3 years of hands-on experience with rheological instrumentation and rheological testing on thermoplastics, thermosets, elastomers, and blends using instruments such as rotational rheometers, capillary rheometers, and dynamic mechanical analysis (DMA) is required.
  • Strong knowledge of polymer fractionation techniques such as multidetector gel permeation chromatography (GPC), temperature rising elution fractionation (TREF), and crystallization fractionation (CFC) is required.
  • Strong knowledge of rheological models and theories for predicting processing behavior and end-use product performance is required.
  • Strong knowledge of structure-property relationships between polymer microstructure and rheological response is required.
  • Ability to correlate rheological data with processing conditions and end-use product performance is required.
  • Ability to identify root causes of processing issues such as melt fracture, die swell, poor surface finish, degradation, and oxidation is required.
  • Analytical thinking, data interpretation, and scientific problem-solving skills are required.
  • Communication, collaboration, and technical leadership skills are required.
  • Ability to manage multiple priorities in a dynamic environment is required.

Responsibilities

  • Apply expertise in advanced characterization techniques, including rheology, polymer fractionation, thermal analysis, and mechanical analysis, to solve technical challenges, support product innovation, improve manufacturing performance, and enable business growth.
  • Collaborate across product development, manufacturing, commercial, and research organizations to generate insights into polymer structure-property-performance relationships and translate analytical findings into business solutions.
  • Provide technical leadership in polymer characterization technologies, emphasizing rheological and solid mechanical analysis.
  • Develop, optimize, validate, and implement analytical methods for product development, manufacturing, customer support, and market growth.
  • Serve as the subject matter expert for rheology, polymer fractionation, thermal analysis, and mechanical analysis, including method stewardship, troubleshooting, and continuous improvement.
  • Use advanced analytical tools to investigate correlations between polymer microstructure and mechanical, rheological, and thermal responses, and establish structure-property-performance relationships.
  • Collaborate with cross-functional teams to address technical challenges, support customer needs, and identify product differentiation opportunities.
  • Evaluate and implement emerging characterization technologies and methodologies to advance analytical capabilities.
  • Provide technical insights and market feedback to support future product and technology development strategies.
  • Monitor industry trends, customer needs, and competitive technologies to guide capability development and innovation.
  • Communicate technical findings to scientific, manufacturing, commercial, and customer audiences.
  • Contribute to intellectual property, technical publications, and conference presentations.

Desired Qualifications

  • Experience in polymer processing operations such as blown-film, cast-film, extrusion, injection molding, blow molding, and compounding is preferred.
  • Understanding of polymer-system thermal behavior, including melting, crystallization, degradation, and oxidation, and its characterization using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) is preferred.
  • Understanding of characterizing molecular characteristics of polymers using polymer fractionation techniques is preferred.
  • Knowledge of industrial polymers such as polyethylene (PE), polypropylene (PP), and ethylene-propylene copolymers and their applications is preferred.
  • Familiarity with complementary analytical tools such as spectroscopy, chromatography, and microscopy is preferred.
  • A demonstrated record of patents, publications, and conference presentations is preferred.

About the Company

ExxonMobil

Produces oil, gas, fuels and chemical materials

ExxonMobil produces oil and natural gas and manufactures fuels, lubricants, and chemicals for transport operators, industrial customers, and consumers around the world. Its businesses span resource exploration and production, refineries that turn crude oil into fuels, and plants that make plastics and other chemical materials. The company sells products through wholesale supply agreements and the Exxon, Esso, and Mobil brands, including motor oils for vehicles and machinery. It also sells services that capture, transport, and store industrial carbon dioxide underground. The merged company formed in 1999 from Exxon and Mobil, with roots in earlier oil businesses, and is headquartered in Spring, Texas.

Company size
10,001+
Company stage
IPO
Headquarters
Spring, TX
Founded
1999

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