Java Engineer - Market Data

Salary: £85,000 - 110,000 per year

Requirements:

• Strong experience with Futures and Options market data, particularly LSEG/Refinitiv.
• Proven Java development experience in electronic trading environments.
• Good understanding of market data, exchange feeds, and trading workflows.
• Experience working with complex existing codebases and technology migrations.
• Strong focus on performance, scalability, and low-latency processing.
• Experience with TDD, automated testing, and regression testing.
• Familiarity with AI-powered development tools.
• Strong analytical, problem-solving, and communication skills.
• Previous RFA-to-RTSDK migration experience is an advantage.
• Experience with low-latency trading and real-time market data systems is an advantage.
• Knowledge of Futures market structure, exchange connectivity, and market data normalisation is an advantage.
• Experience developing shared frameworks or platform libraries is an advantage.

Responsibilities:

• Analyse existing RFA market data usage and map functionality to RTSDK.
• Assess differences in market data fields and behaviour across relevant exchanges.
• Develop enhancements to Java applications and shared frameworks to support RTSDK.
• Support a phased migration while maintaining compatibility and system stability.
• Develop and execute automated, regression, and integration testing.
• Use AI-assisted development tools to improve coding, testing, and productivity.

Technologies:

• AI
• API
• Support
• Java
• TDD

More:

We are seeking an experienced Java Engineer to support the modernisation of a Futures algorithmic trading platform. The role focuses on migrating from the legacy LSEG/Refinitiv RFA API to RTSDK while maintaining trading functionality and performance. This is a permanent, hybrid position based in London, with three days per week in the office and a salary of £85,000–£110,000. We are advertising through CBSbutler, which operates as an Employment Agency for permanent positions and an Employment Business for interim, contract, and temporary positions. CBSbutler is an Equal Opportunities employer and encourages applicants from all backgrounds.

last updated 40 week of 2026