Full-Stack Software Engineer Internship (Summer 2027)

Castleton Commodities International is a leading global energy commodities merchant and infrastructure asset investor. They are looking for motivated and detail-oriented Front Office Software Engineering Interns to join their Global Data Science & Technology team, contributing to the development of software tools that support trading and analytics.

What you'll do:

• Contribute to the development of front office software tools that support real-time trading, market data analytics, and visualization
• Work with the commercial trading team to optimize and re-engineer pricing models, decision tools, and trading workflows
• Build and enhance Python-based microservices and APIs for internal data access and operations automation
• Assist in building data visualization dashboards using libraries such as Streamlit, integrating commercial KPIs, price curves, and supply/demand analytics
• Participate in cloud-native application development using AWS services, including Kubernetes and Kafka
• Support automation of deployment processes using modern DevOps tools (e.g., Git, Docker, Helm, CI/CD pipelines)
• Collaborate with the Data Science team to help integrate ML-driven analytics into front office workflows

What they're looking for:

• Currently pursuing a Bachelor's or Master's degree in Computer Science, Engineering, Management Information Systems, or related technical field of study
• Expected graduation date of Winter 2027 or Spring/Summer 2028
• Strong programming experience in Python (preferred libraries: Pandas, NumPy, etc.)
• Familiarity with version control tools (e.g., Git) and software development best practices
• Strong problem-solving abilities and an eagerness to learn about financial markets and trading systems
• Excellent communication skills and ability to work in a fast-paced, collaborative environment