Senior .Net Developer (Billing or Financial Systems Essential)2 Year Fixed Term ContractSouthampton, 3 days per week 60-65k + 10% Bonus, 8% Pension, Private Medical.- This role cannot offer Visa Sponsorship.- You must have Billing Systems or Financial Product Experience to apply. Your new company I''m recruiting exclusively for a globally connected business operating at the heart of international trade. Their name is known worldwide with over 100k employees following recent acquisitions and you''ll join initially on a 2-year Fixed Term Contract.With a significant multi-year Billing Transformation Programme underway, the business is replacing a complex legacy billing platform with a modern enterprise solution. This is a high-impact programme to with strong investment to modernise and the chance to introduce AI in production.It''s the best of both worlds, security of a multi-national with the strong collaboration and interaction of an SME. This role is hybrid, with a minimum of 3 days in their Southampton office. Your new role This is not a typical greenfield development role.You''ll sit at the heart of a complex billing environment, working across system stabilisation, reverse engineering and transformation support. The role is best suited to someone who enjoys understanding how systems truly work, not just building new features.A large part of your time will involve working on a heavily customised, customer-specific billing platform, where logic can vary significantly ..... full job details .....