T-Mobile UK - 'Topup' System

T Mobile is one of the world’s largest mobile phone operators. Its B2B application, enabling its business partners to sell ‘top up’ units for mobile phones, is a critical source of revenue.

Black Pepper was tasked with improving performance and scalability of this and other J2EE applications running on BEA WebLogic. The assignments involved a review of the architecture, design and systems integration in order to identify and fix performance issues.

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