Jobs at Castleton Commodities International

Leads the transition of Data Operations from manual processes to automated, workflow-driven operations. Responsibilities include clearing reference data backlogs, supporting ETRM trade operations, reconciling master and reference data, investigating issues with SQL, defining requirements and controls, maintaining EBX and ServiceNow workflows, managing trade failures, establishing runbooks and SLAs, and using operational KPIs to drive root-cause remediation and transformation priorities.

Supports European principal investment activities across energy transition, digital infrastructure, and critical supply chains. Responsibilities include market research, financial modeling, valuation, due diligence, deal execution, financing, portfolio management, investment committee materials, power market analysis, and market intelligence. The intern collaborates with senior investors, advisors, lenders, legal teams, trading, risk, and operations while gaining experience in investment evaluation and transaction execution.

Supports European principal investment activities across origination, valuation, due diligence, deal execution, financing, and portfolio management. Builds financial models, analyzes financial and power market data, prepares investment committee materials, monitors market and policy trends, and coordinates with internal teams and external advisors. The internship offers exposure to energy transition, digital infrastructure, and critical supply chain investments.

The Senior Site Reliability Engineer improves infrastructure reliability and scalability, partners with various teams, implements IaC and CI/CD, and ensures business continuity through effective BCP/DR planning.

Summer internship on the Global Data Science team to develop and optimize time-series forecasting models (ARIMA/SARIMA, XGBoost, LSTM). Support end-to-end data ingestion, back-test datasets, collaborate with traders and analysts, and conduct ad hoc research on energy fundamentals and analytics trends.

Two-year rotational program for new graduates to develop leaders in operations and finance. Participants complete four six-month rotations across settlements, trading operations, treasury, credit, tax, enterprise improvement, and product control, work on strategic projects, receive training, and may receive full-time offers from host groups.

Supports U.S. indirect tax compliance and analysis for oil liquids activities. Responsibilities include researching tax laws, preparing returns, managing audits and documentation, reconciling payments, resolving tax authority notices, implementing legislative changes, reviewing contracts, and coordinating with trading and operations teams to ensure accurate tax treatment.

Hands-on role building and maintaining a firmwide front-office trading, investment, and analytics platform. Develop Python services and APIs, SQL-backed data workflows, cloud-native integrations, and visualization tools. Partner with commercial trading teams to optimize trading processes, support market data/positions analysis, and drive cloud-first development.

The Hydrologist role involves designing and maintaining quantitative forecasting tools for hydrological variables, integrating them into power generation forecasts. The role requires strong programming skills and familiarity with hydrological modeling.