Data Science & Technology Intern

At Castleton Commodities International (CCI), we are redefining how data and technology shape the future of energy trading. Our Data Science & Technology team is at the forefront of this transformation, developing systems and innovative tools that empower our front-office teams to better understand market dynamics, forecast prices, and manage risk. Our commitment to excellence is reflected in a robust, modern, open-source technology stack, empowering us to solve complex, high-impact challenges at scale. From cloud-native infrastructure to machine learning platforms, real-time analytics, and proprietary libraries and APIs, we are passionate about using technology to drive innovation and create a competitive edge in global energy commodity trading and investing. Interns will gain direct exposure to our commercial investment teams, offering a unique opportunity to see how cutting-edge technology drives strategy and performance in energy markets. As a Data Science & Technology Intern, you will contribute to projects that directly support commercial decision-making and technology advancement. Depending on your focus, our internship programs are offered across multiple technical tracks: Software Engineering – Design, develop, and deploy real-time front-office tools in Python, including quantitative analysis, models, APIs, and automated workflows Machine Learning – Analyze time-series data across market fundamentals in the Power, Natural Gas, and Oil sectors, helping to identify key supply and demand drivers and build predictive models GenAI – Collaborate on the design of multi-agent systems where specialized agents work together to solve complex, cross-domain problems Data Engineering – Develop data pipelines and ETL processes to structure, normalize, and standardize data in Snowflake, our core SQL / relational data warehouse We are looking for students who are passionate about technology and excited to explore the intersection of energy markets and data analytics. Ideal candidates will have a strong foundation in programming, particularly in Python and/or SQL, and are currently pursuing a Bachelor's, Master's, or Ph.D. in Computer Science, Management Information Systems, Mathematics, Physics, Economics, Statistics, or a related field. Intellectual curiosity, a problem-solving mindset, and a desire to work in a fast-paced, data driven environment are essential. The European program is based in our London office, and the US program operates from offices in Houston, Stamford, and New York City. Campus recruitment for internships starts in early August with application deadlines in mid-September.

Castleton Commodities International (CCI) is a global energy commodities trading and logistics company. The company is engaged in the physical and financial trading of a broad range of energy commodities, including natural gas, power, crude oil, refined products, coal, emissions, and petrochemicals. CCI has trading and asset operations around the world, with strategic locations in North America, Europe, and Asia.