Market Data Engineer - Java - Futures andamp; Options - RFA to RTSDKPermanentBased in the CitySalary: £80K - £115K depending on experienceWe are looking for an experienced Market Data Engineer with strong Java development skills and a background in electronic trading to support the modernisation of a Futures Algorithmic Trading platform.This is a hands-on engineering role focused on migrating market data integration from the Legacy LSEG/Refinitiv Robust Foundation API (RFA) to the Real Time SDK (RTSDK), ensuring performance, reliability and existing trading functionality are maintained throughout the transition.Responsibilities:* Analyse existing RFA integrations and map market data fields and functionality to RTSDK.* Develop andamp; enhance Java applications andamp; shared frameworks to support the migration.* Work with Futures and Options market data across supported exchanges.* Maintain backward compatibility and ensure minimal 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.Skills and Experience: * 4-8 years 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 ..... full job details .....