Python Developer - Commodities / Front-office

Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid Key Responsibilities • Develop and optimize Python calculators for: • Historical index back-testing • Daily pricing and index computation • Weighting and rebalancing logic • Attribution and decomposition analytics • Build robust APIs using FastAPI or Flask • Collaborate directly with business users to gather requirements and iterate quickly • Implement testing, versioning, and data validation processes • Ensure integration with internal data sources and reporting tools Required Skills • 5+ years of Python development experience, ideally in financial services or commodities • Strong proficiency in Pandas, NumPy, and time-series data manipulation • Proven experience with FastAPI or Flask • Familiarity with large datasets and real-time data pipelines • Excellent debugging, profiling, and performance optimization skills • Strong communication skills and ability to work with non-technical stakeholders Preferred Skills • Experience with commodities indices or structured products • Knowledge of market data platforms (e.g., Bloomberg, Refinitiv) • Exposure to Docker, AWS/GCP, and database systems (SQL/NoSQL) Please apply within for further details - Matt Holmes, Harvey Nash