ExxonMobil

Data Scientist, Reinforcement Learning

ExxonMobil$120K — $150K *
Energy & Utilities
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in AI/ML, optimization, or related fields, including 2 years in reinforcement learning and sequential decision-making.
  • Master's or PhD in a quantitative field such as Computer Science, Machine Learning, Engineering, or Applied Mathematics.
  • Deep understanding of reinforcement learning fundamentals and techniques.
  • Proven end-to-end experience in building reinforcement learning systems.
  • Experience with simulation environments or digital twins for training and evaluation.
  • Strong proficiency in Python and frameworks like PyTorch or TensorFlow, along with RL libraries.
  • Strong communication skills to interact with technical and non-technical stakeholders.

Responsibilities

  • Design and develop RL solutions for real-world energy applications.
  • Formulate sequential decision problems in collaboration with domain experts.
  • Develop RL agents using model-free and model-based approaches.
  • Build simulation environments for offline training and validation of RL agents.
  • Apply safe RL techniques to maintain operational and safety limits.
  • Integrate RL solutions with existing systems for real-time and planning applications.
  • Collaborate with data scientists to operationalize RL solutions.

Benefits

  • Automatic enrollment in a pension plan at no cost, providing monthly retirement annuity.
  • Savings plan with company matching of 7% if contributing at least 6%.
  • Flexibility in work arrangements, allowing for ad-hoc flexibility and part-time work options.
  • Comprehensive medical, dental, and vision plans available.
  • Wellness programs to support employee health and wellbeing.
  • Access to confidential counseling and mental health resources for employees and families.
  • Automatic enrollment in a disability plan with income replacement benefits.
Full Job Description
Your role on our team

Pioneer the application of reinforcement learning (RL) and sequential decision-making to high-impact challenges across ExxonMobil's upstream, downstream, and commercial operations.

Collaborate with engineers, scientists, and business stakeholders to turn complex operational and planning problems into deployable, production-grade RL solutions.

Advance the organization's capabilities in reinforcement learning, decision optimization, and autonomous control as part of the Modeling, Optimization, and Data Science (MODS) team.

What you will do

  • Design, develop, and deploy reinforcement learning solutions for real-world energy applications such as production optimization, process control, supply chain scheduling, drilling optimization, and resource allocation.
  • Formulate sequential decision problems by defining state spaces, action spaces, reward structures, transition dynamics, and operational constraints with domain experts.
  • Develop RL agents using model-free methods (e.g., PPO, SAC, TD3, DQN where appropriate) and model-based approaches, selecting methods based on problem requirements, safety, and data availability.
  • Build and use simulation environments and digital twins for offline training, policy evaluation, and validation before real-world deployment.
  • Apply safe and constrained RL techniques to ensure agents operate within operational and safety limits.
  • Integrate RL solutions with existing optimization, simulation, and control systems across real-time and planning use cases.
  • Partner with data scientists and ML engineers to operationalize solutions, including training pipelines, monitoring, retraining, and performance tracking.
  • Benchmark RL against traditional methods such as LP, MIP, heuristic search, MPC, and stochastic optimization to identify best-fit approaches.
  • Stay current with advances in offline RL, safe RL, multi-agent RL, hierarchical RL, and model-based RL.
  • Share knowledge, publish findings where appropriate, and mentor peers on RL best practices.


About you

Desired Skills:
  • Experienced AI/ML professional with strong expertise in reinforcement learning, sequential decision-making, optimization, and real-world deployment.
  • 5+ years of experience in AI/ML, optimization, or related fields, including at least 2 years in reinforcement learning, sequential decision-making, or optimal control.
  • Master's or PhD in Computer Science, Machine Learning, Operations Research, Control Theory, Robotics, Applied Mathematics, Engineering, or a related quantitative field.
  • Deep understanding of RL fundamentals, including MDPs, dynamic programming, temporal-difference learning, policy gradients, and actor-critic methods.
  • Proven experience building RL systems end-to-end, from environment and reward design through training, evaluation, and deployment.
  • Experience with simulation environments, digital twins, or system models.
  • Strong background in statistics, probability, optimization, control theory, and algorithm design.
  • Proficiency in Python, PyTorch and/or TensorFlow, plus RL tools such as Stable Baselines3, RLlib, and Gymnasium.
  • Strong communication and collaboration skills, including the ability to explain technical concepts to non-technical stakeholders.


Preferred Skills:
  • Experience applying RL or decision optimization in industrial domains such as process control, robotics, autonomous systems, supply chain, energy systems, or operations research.
  • Familiarity with offline (batch) RL, safe RL, and multi-agent RL.
  • Knowledge of model-based RL, MPC, and hybrid RL-control approaches.
  • Understanding of classical optimization methods and how RL complements them.
  • Experience with physics-informed or hybrid mechanistic/ML modeling and domain-informed reward or constraint design.
  • Familiarity with platforms such as Azure ML, Azure OpenAI, Databricks, and MLOps tools such as MLflow or Weights & Biases.
  • Experience in the energy industry or other asset-intensive, safety-critical sectors.


Your benefits

An ExxonMobil career is one designed to last. Our commitment to you runs deep: our employees grow personally and professionally, with benefits built on our core categories of health, security, finance, and life.

We offer you:

  • Pension Plan: Enrollment is automatic and at no cost to you. The basic benefit is a monthly annuity to be paid to you in retirement for the rest of your life.
  • Savings Plan: You can contribute between 6% and 20% of your pay and are encouraged to enroll right away. If you contribute at least 6% to your savings plan, the Company will contribute a 7% match.
  • Workplace Flexibility: We have several programs such as "Flex your Day", providing ad-hoc flexibility around when and where you work, as well as longer-term programs such as leaves of absence and part-time work.
  • Comprehensive medical, dental, and vision plans.
  • Culture of Health: Programs and resources to support your wellbeing.
  • Employee Health Advisory Program: Provides confidential professional counseling for you and your family, including tools and resources promoting mental health and resiliency at no additional cost to you.
  • 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 to you.

More information on our Company's benefits can be found at www.exxonmobilfamily.com.

Please note benefits may be changed from time to time without notice, subject to applicable law.

About ExxonMobil

ExxonMobil is an international oil and gas company, providing energy that helps underpin growing economies and improve living standards around the world. It uses innovation and technology to deliver energy to a growing world. The company explores for, produces, and sells crude oil, natural gas and petroleum products.

ExxonMobil Careers

Join ExxonMobil, a global leader in the energy sector, and be part of a team that values innovation, leadership, and diversity. At ExxonMobil, we offer unparalleled job opportunities and a culture that fosters growth and professional development. Work You’ll Do At ExxonMobil, we are committed to providing the energy that powers the world. Join our team to help tackle some of the most challenging and important energy issues of our time. You will work alongside some of the brightest minds in the industry, using cutting-edge technology to innovate, improve, and lead in the energy sector. Transform the Industry Lead the way in energy solutions with ExxonMobil’s team of dedicated professionals. Our commitment to innovation and technology makes us a leader in the energy industry. With projects and operations around the globe, your work at ExxonMobil will help shape the future of energy. Explore Career Opportunities Whether you are looking for an internship, a graduate opportunity, or a professional position, ExxonMobil has a variety of roles to suit your skills and ambitions. We are hiring in multiple disciplines including engineering, business, IT, and more. Develop Your Skills ExxonMobil believes in nurturing talent and leadership through rigorous training and development programs. Enhance your skills with our comprehensive training modules and gain invaluable experience that will propel your career forward. Be Part of a Diverse Team Diversity and inclusion are at the heart of our company culture. At ExxonMobil, we embrace the unique perspectives and capabilities of our team members to drive innovation and success. Join us and contribute to a diverse workplace that values each individual’s contribution. Benefits and Growth ExxonMobil offers a competitive package of benefits designed to support the health, well-being, and financial security of our employees and their families. Opportunities for growth and advancement are abundant, as we believe in fostering internal talent and promoting from within. Networking and Professional Development Expand your professional network and connect with industry leaders through ExxonMobil’s global events and networking opportunities. Our collaborative environment supports career growth and exploration. Applying at ExxonMobil Ready to advance your career at ExxonMobil? Explore open positions that match your skills and interests on our careers page. Prepare your resume, sharpen your interview skills, and get ready to join a company that values hard work and innovation. Stay Connected Keep up to date with the latest from ExxonMobil Careers by subscribing to our job alert emails. Tailor your preferences to receive updates about new job openings, company news, and insider tips that can help you succeed in your career journey. Join ExxonMobil today and be part of a team that is dedicated to creating a better future through energy solutions that are safe, reliable, and responsible. Explore the opportunities and find out how your skills and passions can contribute to our mutual success.
Learn more about ExxonMobil
Size
63,000 employees
Market Cap
$442 billion
Industry
Net Income
-$22.4 billion
Founded
1870
5 Year Trend
+6.6%
Revenue
$178.5 billion
NASDAQ

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