The Role A leading global financial institution is seeking a Python Developer (Contract) to join its Commodities Technology team. This group supports a fast-growing Commodities Index business that spans Oil, Gas, Power, Agriculture, and Metals, providing advanced analytics and tools for structuring and trading. You will play a key role in designing and delivering a new index back-testing platform, working closely with structurers and front office stakeholders. The position offers direct business interaction, exposure to real-world trading problems, and the opportunity to build robust, high-performance solutions in a dynamic environment. Responsibilities Develop and enhance Python-based models for: Historical index back-testing Daily pricing and index level generation Weighting and rebalancing logic Basket decomposition and attribution analytics Design and deploy scalable APIs (Flask / FastAPI) for internal and external tools. Partner with business users to gather requirements and iterate quickly on solutions. Implement testing frameworks, version control, and data validation processes. Integrate with market data, storage systems, and reporting platforms. Required Skills 5 years' Python development experience, ideally within trading, risk, or financial services. Strong background with Pandas, NumPy, and data science libraries. Hands-on experience with Flask or FastAPI for API development. Proficiency in time-series data manipulation and back-testing methods. Experience working with large datasets and real-time data pipelines. Strong performance optimisation and debugging skills. Confident communicator with the ability to liaise directly with business stakeholders. Desirable Skills Experience in commodities indices, structured products, or index engineering. Knowledge of market data feeds (Bloomberg, Refinitiv, etc). Familiarity with containerisation (Docker) and cloud platforms (AWS/GCP). Database experience (SQL/NoSQL) and use of modern data formats (Parquet, HDF5). Contract: Initial term with possible extension Day Rate: Competitive, depending on experience McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds.