Apostolos Tsakas Email & Phone Number | Responsible for the management, planning and budget controlling of B2C & B2B product & services and F2R & O2B Demand, as well as QA & Test Automation and post deployment Business after care. Responsible for the development & maintenance activities of IT Customer Relationship Management (CRM) Systems as well as Computer Telephony Integration (CTI) Systems for fixed & mobile area. Managing the Development & Maintenance Activities for Billing, Mediation as well as other Operational Support Systems, such as Service Activation, Network Inventory, Service Assurance, WorkForce Management for both fixed and mobile area at OTEGroup. Main achievements in this area while being responsible were the implementation of an Online Charging System (OCS) for the postpaid mobile customers, as well as the launch of a web-based WFM application used by almost 2K field engineers and technicians. Managing areas such as Storage & Systems Administration, Backup & DR, HA & Virtualization, Application Servers & Middleware, Database Administration. Participation as team member in the selection of a Next Generation Revenue Assurance Platform. Participation as team member in the selection of a Next Generation Billing & Revenue Management Solution primarily aiming at the convergence of fixed to mobile & post to prepaid capabilities. Mediation, Rating, Billing, Invoicing, Accounting & Revenue Sharing of IPTV Service as IT Team Leader. Security Analytics & Data Retention as Project Manager. Digital Interactive Archive Systems Interfaces Redesign (Direct Debit Payments) as Project Manager. Business & Data Migration from the Legacy Billing System to the new one as Billing Team Leader. In-house Development of a Dunning System for Residential & Business Customers as Project Manager. Analysis & Development of • Fraud Detection & Management System, • Standing Orders Payments (credit card payments), • Loyalty Scheme aiming at Customer Retention as Project Manager.

Apostolos Tsakas

Responsible for the management, planning and budget controlling of B2C & B2B product & services and...
Greece

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Apostolos Tsakas’s Email atsakas@cosmote.gr

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Apostolos Tsakas’s Location Greece

Apostolos Tsakas’s Current Industry Ote Group Of Companies

Apostolos Tsakas’s Prior Industry Hellenic Telecommunications Organisation | Etis The Global It Association For Telecommunications | Deutsche Telekom | Fanco

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Work Experience

Ote Group Of Companies

Commercial Demand Management Senior Manager for Fixed & Mobile

2018-01-01 00:00:00 - Present

Hellenic Telecommunications Organisation

CRM Systems Senior Manager for Fixed & Mobile

2015-06-01 00:00:00 - 2018-01-01 00:00:00

Etis The Global It Association For Telecommunications

Chairman of the Billing & Revenue Management Working Group

2011-04-01 00:00:00 - 2015-10-01 00:00:00

Deutsche Telekom

NG Billing Participant

2010-01-01 00:00:00 - 2010-01-01 00:00:00

Fanco

Cost Accounting Manager

1996-02-01 00:00:00 - 1997-07-01 00:00:00

Skills

No Skills Available

Languages

No Languages Available

FAQ About Apostolos Tsakas

Apostolos Tsakas is located at
Greece

Apostolos Tsakas is a Responsible for the management, planning and budget controlling of B2C & B2B product & services and F2R & O2B Demand, as well as QA & Test Automation and post deployment Business after care. Responsible for the development & maintenance activities of IT Customer Relationship Management (CRM) Systems as well as Computer Telephony Integration (CTI) Systems for fixed & mobile area. Managing the Development & Maintenance Activities for Billing, Mediation as well as other Operational Support Systems, such as Service Activation, Network Inventory, Service Assurance, WorkForce Management for both fixed and mobile area at OTEGroup. Main achievements in this area while being responsible were the implementation of an Online Charging System (OCS) for the postpaid mobile customers, as well as the launch of a web-based WFM application used by almost 2K field engineers and technicians. Managing areas such as Storage & Systems Administration, Backup & DR, HA & Virtualization, Application Servers & Middleware, Database Administration. Participation as team member in the selection of a Next Generation Revenue Assurance Platform. Participation as team member in the selection of a Next Generation Billing & Revenue Management Solution primarily aiming at the convergence of fixed to mobile & post to prepaid capabilities. Mediation, Rating, Billing, Invoicing, Accounting & Revenue Sharing of IPTV Service as IT Team Leader. Security Analytics & Data Retention as Project Manager. Digital Interactive Archive Systems Interfaces Redesign (Direct Debit Payments) as Project Manager. Business & Data Migration from the Legacy Billing System to the new one as Billing Team Leader. In-house Development of a Dunning System for Residential & Business Customers as Project Manager. Analysis & Development of • Fraud Detection & Management System, • Standing Orders Payments (credit card payments), • Loyalty Scheme aiming at Customer Retention as Project Manager.

Apostolos Tsakas currently works in the Ote Group Of Companies |

No Languages Available

Apostolos Tsakas has prior
experience in the following industries:
Hellenic Telecommunications Organisation | Etis The Global It Association For Telecommunications | Deutsche Telekom | Fanco

Apostolos Tsakas has the following professional experience:
Ote Group Of Companies | Hellenic Telecommunications Organisation | Etis The Global It Association For Telecommunications | Deutsche Telekom | Fanco