Hays Software Engineering are looking for a Senior Developer to join a Derivatives team within a world-renowned Investment Management business to own developments within their Calypso & Broadridge platforms. What you will be doing: Drive Innovation: Lead enhancements for Calypso and Broadridge SFCM, shaping their future to better serve front, middle, and back-office users. Lead & Mentor: Share expertise, mentor junior developers, and champion best practices in high-performance coding and system design. Tackle Complexities: Solve critical technical challenges in a dynamic financial tech environment, ensuring systems remain cutting-edge. Maximise Impact: Continuously optimise workflows, boost data accuracy, and elevate performance to align with business needs and drive innovation. What we are looking for: Strong knowledge of Java & Python with deep knowledge of UNIX environments. Experience with Calypso API and Integration. Advanced knowledge of XML/XSLT. Experience with SQL Server. Financial Services experience is a must (preferably Derivatives) What you will get in return: This position is offering a competitive package, 28 days holiday bank holidays bonus package. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk