About this role
Salary: £80,000 - 115,000 per year
Requirements
- 4–8 years of hands-on Java development experience
- Strong experience with LSEG/Refinitiv market data
- Knowledge of Futures and Options market data and electronic trading systems
- Experience with real-time market data processing and exchange feeds
- Strong software engineering skills, including performance optimisation and development in complex codebases
- Experience with TDD, automated testing and regression testing
- Understanding of API or platform migrations and backward compatibility
- Direct experience migrating from RFA to RTSDK, working with low-latency trading systems, or real-time market data and exchange connectivity is an advantage
Responsibilities
- Analyse existing RFA integrations and map market data fields and functionality to RTSDK
- Develop and enhance Java applications and shared frameworks to support the migration
- Work with Futures and Options market data across supported exchanges
- Maintain backward compatibility and minimise disruption to trading workflows
- Implement performance optimisation, automated testing, TDD and regression testing
- Collaborate with development, QA and business stakeholders to deliver a controlled migration
- Explore AI-assisted development tools to improve engineering and testing efficiency
Technologies
- AI
- API
- Support
- Java
- TDD
More
We are advertising a permanent, hands-on Market Data Engineer role based in the City, with a salary of £80,000–£115,000 depending on experience. The role supports modernisation of a Futures Algorithmic Trading platform by migrating market data integration from the legacy LSEG/Refinitiv Robust Foundation API (RFA) to the Real-Time SDK (RTSDK), while maintaining performance, reliability and existing trading functionality. We are CBSbutler, operating as an Employment Agency for permanent positions and as an Employment Business for interim, contract and temporary positions. We are an Equal Opportunities employer and encourage applicants from all backgrounds.
last updated 46 week of 2026