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Boumiza Walid has a diverse work experience in the field of billing and management. Boumiza started their career in 1999 at Tunisie Telecom as a Billing Operation Support and worked there until 2002. Boumiza then joined Atos Origin as a Senior BSCS consultant from 2002 to 2004. After that, Boumiza joined Alcatel-Lucent as a Billing Expert and Senior Manager, where they worked for almost a decade from 2004 to 2013. Currently, they hold the position of CTO at Billcom Consulting, which they have been in since 2007.

Boumiza Walid attended Université de Sfax, where they pursued a degree in IT engineering. The chronological information does not provide specific details regarding the start and end year of their education. However, it can be assumed that they completed their studies at Université de Sfax in the field of IT.