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Constantinos Zappas

Angestellt, Prepaid & VAS Billing Manager, WIND Hellas Telecommunications S.A.
Maroussi, Griechenland

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Berufserfahrung von Constantinos Zappas

  • Bis heute 12 Jahre und 3 Monate, seit März 2013

    Prepaid & VAS Billing Manager

    WIND Hellas Telecommunications S.A.

    Responsible for the operation of WIND Hellas’ prepaid solution, and the implementation of several products & services. Project Manager in several IT integration & migration projects. Leading a team of 12 WIND Hellas engineers and 10 vendor’s support team members.

  • 8 Jahre und 3 Monate, Dez. 2004 - Feb. 2013

    Senior IS Engineer

    WIND Hellas Telecommunications S.A.

    Working as a Senior IS Engineer at WIND's Prepaid team. Managing IS Projects in cooperation with other IS and network departments in order to offer to Prepaid Marketing team high-end service solutions for the prepaid customers. Highly involved in the management, configuration and testing of all major high-end launched services and projects (e.g. WIND To All service, Hybrid Prepaid, WIND Prepaid Migration, Offer Management System BEA/BSCS Integration).

  • 8 Monate, Okt. 2003 - Mai 2004

    System Administrator Assistant

    1st HAAB (Hellenic Army Aviation Brigade)

    During my military service, I worked at the IT and Research Office of the 1st HAAB as System and Network Administrator assistant for Military IT services. My key accountability was to configure, operate and maintain the Military communication platform and offer IT support to the stuff of the Brigade. As main Project during my 7 month service, I designed, developed and tested a web based calendar application (i.e. php/MySQL) in order to cover the organizational needs for the Brigade's activities.

  • 1 Jahr und 1 Monat, Sep. 2001 - Sep. 2002

    Computer Support Officer

    University of Surrey

    Worked as part time Computer Support Officer in the UniS Computing Services. Main task of the job was to offer support to all students using the Computing Services facilities.

  • 1 Jahr und 11 Monate, Sep. 1999 - Juli 2001

    Technical Support Officer

    Kentavros Computers

    As a technical support officer I was responsible to coordinate the support team in order offer complete IT solutions to our clients (i.e. Software, Hardware, Network infrastructures, web services, training, ISDN, PSTN and VOIP Telephony Systems).

Ausbildung von Constantinos Zappas

  • 2001 - 2002

    Internet Computing

    University of Surrey

    MSc in Internet Computing with 1st class dissertation with subject: “A collaborative framework for agent-based distributed systems”. Designed and developed a working prototype using Perl scripting language under Unix platform (SUN Solaris).

  • 1996 - 2000

    Electrical and Electronics Engineering

    University of Surrey

    As my dissertation with subject: “An asynchronous computational model for Internet distributed computing (client side)” I developed a Java based prototype clientas part of a complete working prototype of the MAIC (Model for Asynchronous Internet Communication) system.

  • 1995 - 1996

    Foundation Course

    Guildford College

Sprachen

  • Englisch

    Fließend

  • Griechisch

    Muttersprache

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