Thermodynamics Process Modeling


Houston, TX, US

Company:  ExxonMobil

Job Summary


At ExxonMobil, one of the world’s largest publicly traded energy providers and chemical manufacturers, we develop and apply next-generation technologies to help safely and responsibly meet the world’s growing needs for energy and high-quality chemical products. Affordable and sustainable energy solutions are required to advance global prosperity. We invest in technology and communities to bring the world better energy. Within ExxonMobil Technology and Engineering Company, our teams leverage our world-class facilities to research and develop the energy solutions of tomorrow.


By joining Process Innovation and Scale-Up with ExxonMobil Technology and Engineering Company, you will be an integral technical contributor to process development and scale-up programs applying thermodynamics, chemical engineering fundamentals and process modeling skills to tackle process conceptualization and development problems critical to developing new process technologies from concept ideas to commercial scale deployment.


This position will be based in Houston, TX

Primary Job Functions include one or more of the following


  • Develop and apply fit-for-purpose custom thermodynamic models and implement in process simulators for use in new process technologies with applications across ExxonMobil Business Divisions; Upstream Company, Product Solutions Company, and Low Carbon Solutions
  • Work collaboratively within cross-discipline teams with expertise in experimentation (active materials development, lab-scale experiments, and pilot plant studies), process modeling, process engineering and equipment design
  • Continuously improve the value of thermodynamic modeling activities through close interaction with experimentalists to provide guidance on experimental setups and campaigns and in some cases the ability to run experimental work
  • Serve as a subject matter expert and technical mentor in topics related to applications of thermodynamic models, phase equilibria, and physical interaction at molecular and process scale to the research and process engineering community
  • Your success in this role requires an aptitude for and strong background in fundamentals based modeling, particularly in the area of phase equilibria and physical property models of multi component gas-hydrocarbon, oxygenated, and electrolytic systems, and a broad interest applying these skills to process conceptualization and development
  • Many problems rely on a sound fundamentals in chemical engineering unit operations – with a suitable academic/experience background, that can be developed through assignments on projects

Job Requirements


PhD in Chemical Engineering or related discipline with a focus on thermodynamics or process conceptualization.

Demonstrated experience with: 


  • Developing new thermodynamic models
  • Expertise in the application of thermodynamic models to predict phase equilibria and physical properties
  • Computational languages: Python, MATLAB, etc
  • Sound knowledge of energy industry, with emphasis in refining and petro-chemical process
  • Strong ability and interest to work on applications driven by abstract problems and develop creative out-of-the box solutions 
  • Driven and self-motivated
  • Strong written and oral communication skills

Preferred Knowledge or Skills


  • Electrolyte thermodynamics
  • Lab and/or pilot scale experimentation 
  • Experience process conceptualization or simulation, with energy systems, biofuels, novel chemicals and polymers, incl Techno-Economic Analysis, process simulation platforms (APSEN, HYSYS, Pro-II)
  • Hybrid modeling (i.e:  PINNs, AI/ML)


ExxonMobil is an Equal Opportunity Employer.  All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, citizenship status, protected veteran status, genetic information, or physical or mental disability.

Nearest Major Market: Houston

Job Segment: Chemical Research, Chemical Engineer, Process Engineer, Sustainability, Engineer, Engineering, Energy