Senior C++ Developer - LondonBased in the City of London (2 days in the office)/6 months rolling/£650 per day (Inside IR35)A global leading fintech solutions company and member of the Fortune 500, seek an experienced Senior C++ Developer/Software Engineer, to be responsible for preparing programming assignments, including the design, planning and supervision of the implementation of large-scale system projects.This will include: Reviews, analysing, and modifying programming systems including encoding, testing, debugging and installing for a large-scale Mainframe computer system.Essential Duties and Responsibilities for the Senior C++ Developer/Software Engineer:Maintains project estimates and project management timelines for multiple major projects.Verifies completeness and accuracy of specifications for multiple major projects to be estimated (eg, report changes, control file changes, file fixes).Determines programming requirements for multiple major projects (eg, product updates, conversions).Develops requirements for system enhancements.Conducts research and documents findings and recommendations by using analytical problem solving.Provides client support, training, testing and vendor relations.Develops technical designs that will meet system objectives and minimize the impact on operations.Othe core skills and requirements for the Senior C++ Software Engineer/Developer:Recent Financial based industry experience.Maintains and develops on-line and batch application programs