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Atos is an international information technology services company with annual revenue of EUR 8.8 billion and 77,100 employees in 52 countries. Serving a global client base, it delivers IT services in 3 domains, Consulting & Technology Services, Systems Integration and Managed Services & BPO and transactional services through Worldline.
In 2009 Atos was asked to drastically reduce the costs of the UCS application (Universal Clearing System): the compensation engine for the Euronext Cash (stocks and bonds) and derivatives markets in the Euro zone. In the financial sector, clearing is exercised by aggregating all purchases and sales by the type of product/assets held by each account holder, resulting in a balance of net payables or receivables as well as the net flows of securities delivered or received.
Several benchmarks were run to ensure that the application could scale to handle more than 6 million daily transactions. Vincent Cornet, DBA Support Manager at Atos, recalls "During one of our benchmarks we faced a crash. We turned to Oracle’s MySQL support team and obtained a fix within 48 hours, which was subsequently integrated within the official MySQL version. We were extremely pleased with such responsiveness."