23rd February 2026
Market Data & Index Engineer (QIS)
Big Data
London
Competitive Salary
Spencer Rose are seeking a skilled Market Data & Index Engineer to join the Quantitative Investment Strategies (QIS) function within our banking client, located in Central London.
6 month contract
Outside IR35
Central London – hybrid (2 days minimum a week)
Start ASAP
This role focuses on building and maintaining scalable index platforms, managing market and reference data, implementing robust index calculation engines, and supporting the full lifecycle of systematic and rules-based indices.
Key Responsibilities:
- Design, develop, and maintain index calculation frameworks and automated pipelines
- Build and enhance the bank’s index platform infrastructure, including market data ingestion, calculation logic, validation, and distribution
- Implement index methodologies in collaboration with Quant researchers and Structuring teams
- Ensure high-quality, reliable market and reference data inputs in partnership with Data Operations
- Work with Engineering teams to deliver scalable, resilient, and production-grade systems
- Perform index backtesting, validation, and performance analysis
- Support index launches, ongoing maintenance, and governance processes
Requirements:
- Strong programming skills (Python, SQL; experience with distributed systems a plus)
- Solid understanding of financial markets, derivatives, and systematic strategies
- Experience with market data management, index calculations, or quantitative platforms preferred
- Ability to collaborate effectively with Quants, Data Ops, and Technology teams
- Strong problem-solving skills and attention to detail
Consultant - Melissa Freer
Telephone: 0207 392 7506
Email: melissa.freer@spencer-rose.com
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