Senior Optimization Engineer, Carbon Capture & Sequestration

About the Company

At ExxonMobil, our vision is to lead in energy innovations that advance modern living while reducing emissions. As one of the world’s largest publicly traded energy and chemical companies, we are powered by a unique and diverse workforce fueled by pride in what we do and what we stand for. The success of our Upstream, Product Solutions, and Low Carbon Solutions businesses is the result of the talent, curiosity, and drive of our people. They bring solutions every day to optimize our strategy in energy, chemicals, lubricants, and lower-emissions technologies. We invite you to bring your ideas to ExxonMobil to help create sustainable solutions that improve quality of life and meet society’s evolving needs.

About the Location

ExxonMobil's state-of-the-art campus north of Houston serves as home to its Upstream, Product Solutions, and Low Carbon Solutions businesses and their associated service groups. The facility opened in 2014 and accommodates more than 10,000 employees and visitors. By bringing many global functional groups together, the campus provides employees with the tools and capabilities needed today and in the future to achieve business objectives and accelerate the discovery of new resources, technologies, and products.

The campus is designed to foster improved collaboration, creativity, and innovation while enhancing the company’s ability to attract, develop, and retain top talent in the industry. Located in Spring, Texas, on 385 wooded acres at the intersection of Interstate Highway 45 (I-45) and the Hardy Toll Road, the campus is approximately 25 miles from downtown Houston. It was constructed to the highest standards of energy efficiency and environmental stewardship, incorporating extensive research into best practices in building and workplace design.

About the Role

As the senior optimization engineer on our CCS team, you will shape the optimization foundation of a rapidly growing carbon capture and sequestration system on the U.S. Gulf Coast, influencing billions of dollars of infrastructure and operational decisions through advanced mathematical modeling. Working in the Low Carbon Solutions business, you will operate in a dynamic, startup-like environment that leverages ExxonMobil’s scale, technical expertise, and resources to rapidly develop and deploy energy transition solutions.

This role extends beyond mathematical model development. You will work directly with business stakeholders to apply optimization tools to real-world decisions, deepen your understanding of the CCS value chain, and help develop software products that enable optimization capabilities across the organization.

Responsibilities

• Build optimization models that support network expansion decisions, CO₂ transportation planning, storage allocation, capital investment prioritization, and day-to-day operational decision making.
• Design and build optimization diagnostics, validate model formulations and solution strategies, and continuously improve model performance, scalability, maintainability, and transparency.
• Partner with stakeholders across the CCS business to apply optimization models to strategic and operational challenges, communicate recommendations, and incorporate business feedback into future model capabilities.
• Collaborate with data scientists to develop, validate, and improve surrogate models representing complex or non-linear system behavior.
• Collaborate with data and software engineers to integrate optimization models into robust, user-friendly tools that can be deployed and utilized across the CCS organization.

Qualifications

• Bachelor’s, Master’s, or Ph.D. degree in Engineering, Operations Research, Applied Mathematics, Computer Science, or a related quantitative field with a strong focus on optimization.
• Five or more years of experience developing mathematical optimization solutions, including designing, implementing, and maintaining large-scale optimization models. Experience should include model formulation, performance tuning, solution validation, and translating business problems into optimization frameworks.
• Strong Python programming skills, including experience developing and maintaining optimization applications using tools such as GurobiPy, Pandas, and related scientific computing libraries.
• Demonstrated ability to independently develop, validate, and maintain complex optimization models with limited supervision.
• Strong communication skills with the ability to explain complex technical concepts to non-technical audiences and discuss detailed implementation approaches with technical stakeholders.
• Demonstrated ability to rapidly learn new business domains and adapt within a fast-paced and evolving environment.
• Strong analytical, quantitative, and problem-solving skills.

Preferred Qualifications

• Experience deploying optimization models into production environments and working closely with software engineering teams to operationalize analytical solutions.
• Experience in asset-intensive, molecule-management industries such as oil and gas, chemicals, power, logistics, or related sectors.
• Prior CCS experience is not required. Candidates should demonstrate the ability to quickly learn unfamiliar domains and translate business processes and constraints into effective optimization formulations.

Benefits

• Pension Plan: Enrollment is automatic and at no cost. The basic benefit is a monthly annuity paid for life in retirement.
• Savings Plan: You can contribute between 6% and 20% of your pay, with a 7% company match if you contribute at least 6%.
• Workplace Flexibility: Programs such as “Flex your Day” provide ad-hoc flexibility around when and where you work, along with longer-term options like leaves of absence and part-time work.
• Health Benefits: Comprehensive medical, dental, and vision plans.
• Culture of Health: Programs and resources to support your wellbeing.
• Employee Health Advisory Program: Confidential professional counseling for you and your family, including tools and resources promoting mental health and resiliency at no additional cost.
• Disability Plan: Income replacement for when you cannot work due to illness or injury occurring on or off the job. Enrollment is automatic and at no cost.

More information on benefits can be found at www.exxonmobilfamily.com. Please note benefits are subject exclusively to the terms of each plan’s governing documents and may be changed from time to time without notice, subject to applicable law.