Chemical Engineering - Process and Unit Operations Scale-Up


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  kinetics, transport, and reactor engineering fundamentals and process modeling skill sets to tackle process development, scale-up, and unit design problems critical to developing new process technologies from concept ideas to commercial scale deployment.  


This is position will be based in Houston, TX or Annandale, NJ

Primary Job Functions include one or more of the following


  • Develop and apply fit for purpose process and unit operations models to guide screening, development and design of new process technologies with applications across ExxonMobil Business Divisions; Upstream Company, Product Solutions Company, and Low Carbon Solutions

  • Apply aptitude for and strong background in fundamentals based modeling, particularly in the areas of complex kinetics for reacting systems, advanced separations (bulk and surface-driven phenomenal), and a broad interest applying these skills to process development

  • Work collaboratively within cross-discipline teams with expertise in experimentation (active materials development, lab-scale experiments, and pilot plant studies), process engineering and equipment design, utilizing models to support the design of experiments, validation, and scale-up activities

  • Develop and maintain advance new modeling capabilities for phenomenological and dynamic models application

  • Serve as a subject matter expert and technical mentor in topics related to kinetic modeling, phenomenological modeling, and reactor engineering to the research and process engineering community

  • 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, Mechanical Engineering, Applied Mathematics or related discipline with relevant thesis work

  • Demonstrated experience with: 

    • Developing and applying multi-scale models of process units (i.e. reacting and separation systems, electrochemical processes, membrane/adsorption separations, steady-state/dynamic/cyclic etc.)

    • Building, solving, and optimizing robust kinetic models which incorporate fundamental process chemistry

    • Computational languages:  MATLAB, Python, gPROMS, APL

  • 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


  • Lab and/or pilot scale experimentation 

  • Process scale-up experience understanding the impact of scale on unit operations/commercial-scale embodiment/design 

  • Experience with 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, Process Engineer, Chemical Engineer, Sustainability, Engineering, Energy, Research