Worked on Subscription Manager where subscription service are taken care. Subscription manager is capable of handling subscriber life cycle , subscription management. It’s handle content type like VAS service,UNR services,CRBT servicesWorking on Service Delivery Platform where Content provider management, Subscription Charging,Recurring billing, Renewal MT push,Content Message push based on Subscriber subscription and various features like Voting,Dynamic billing,Event Booking many more. Worked on Varies charging interface like Diameter,UCIP,CBS,OCS and varies billing integration .Worked on Marketplace Application where subscriber can subscribe or purchase various category online either through USSD or Mobile APP channel.