Cassio Carvalho

Experience

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  Telemar Norte Leste/ Oi

  Nov 2008 - May 2009

  Internship

  Mobile phone ratification through standard tests, making reports and sending to other areas• Supporting other departaments to solve incompatibility problems with Oi service platform.

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  Vivo

  Jul 2011 - Dec 2012

  Telefonica | Vivo – O&M Voice Core Network – Internship

  Network equipment maintenance• Participation in new projects• Analysis of core network performance (voice route, data and signaling)• Junction activation with route tests• Support programming activity in core network equipments

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  Huawei

  Dec 2014 - Oct 2018

  Core Network Technical Service Engineer

  * Act as a Technical Service Engineer of core network in Project, complete core network design, deploy plan, troubleshooting, assist PM to deliver project successfully;* Equipment lab testing support, including test environment setup, test equipment management and maintenance;* Customer communication and workshops Bidding support on product technical service related part;* Follow up issues that may arise during testing/workshop/bidding activities;* Supervising project engineering process, including hardware and software supervision, acceptance test;* Onsite support for site survey, installation or commissioning when necessary;* Interface with engineering partner to locate technical problems that may arise during the engineering process;* Participation on projects of implantation, commissioning and equipment management of Core CS of differents telecommunication technologies - fix and mobile (NGN, IMS, VoLTE);* Operating in highly complex projects of big customers such as Embratel / Claro - Rio de Janeiro - RJ: Migration TDM to NGN; GVT / LIVE - Curitiba - PR: TDM migration to IMS and expansion, operation and network maintenance; TSTT - Port of Spain - Trinidad and Tobago: Deployment of Virtualized VoLTE.* Performing the entire hiring process and coordination of outsourced partners to implement the hardware assembly and site inspection of the equipment installation conditions. Show less

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  Oracle

  Apr 2023 - now

  Principal Consultant - OCC Global MS