Overview
Work History
Education
Skills
Personal Information
Unions
Interests
Timeline
Generic

Christos Sotirakis

Customer Project Manager

Overview

36
36
years of professional experience
7
7
years of post-secondary education
2
2
Languages

Work History

Customer Project Manager

Ericsson Hellas
12.2007 - Current
  • Company Overview: Working for the local Project Management Office of Ericsson Hellas (Greece), Athens
  • The main responsibilities of our PMO are pre-sales support and execution of projects related with mobile and fixed telephony networks for our customers in Greece, Cyprus, Albania and Malta
  • I have mainly participated in pre-sales and execution of projects related with deployment, integration, and upgrades of Packet Switched nodes (SGSN-MME, EPG), Circuit Switched nodes (MSC, HLR), IMS (SBG, BGF, CSCF, IPworks, AS), OSS and Lawful Interception (LI) systems, including:
  • Vodafone Greece Packet Core evolution (2012-2017)
  • Cosmote IP Centrex deployment (2016)
  • Vodafone Greece OSS upgrade (2017)
  • Nova IP Centrex deployment (2018)
  • Vodafone Greece Packet Core virtualization (2018-2022)
  • Nova IMS project virtualization (2021-2023)
  • Cyta Transit network pre-sales (2023)
  • LI deployments and upgrades for Cosmote, Vodafone Greece, Vodafone Albania and Nova (2007-2023)
  • Nova VoWiFi project (2021-2022)
  • Nova 5G Core (DMC) (2022-2023)
  • Vodafone Greece 5G Core (2023-2024)
  • Working for the local Project Management Office of Ericsson Hellas (Greece), Athens
  • The main responsibilities of our PMO are pre-sales support and execution of projects related with mobile and fixed telephony networks for our customers in Greece, Cyprus, Albania and Malta
  • I have also attended training courses related with PMP preparation, Risk Analysis, Business understanding, and Negotiation Skills and I am PMP certified since January 2011

Systems Engineer

Ericsson Hellas
04.1996 - 11.2007
  • Company Overview: The main responsibility of the department is the installation, integration and support of GSM and UMTS mobile telephony networks in Greece, Cyprus, Albania and Malta
  • During this period, I have attended many technical seminars related with Ericsson products (BSC, MSC, HLR, IOG, DXX, SGSN, GGSN, IMS) as well as generic technical seminars (Data communications, IP, ATM, Unix, Solaris Administration, C7 signaling, GPRS, WCDMA, Erlang programming)
  • I have also attended project management seminars (PROPS) and also communication and leadership seminars
  • The main projects I have been involved with during my work in Ericsson Hellas, are the following:
  • Installations of AXE-10 mobile telephony exchanges (BSC, MSC, HLR), acting as installation and integration tester, installation supervisor and acceptance test representative (April 1996-July 1998)
  • Verification tester, delivery preparation, customer demonstration and rollout of AXE-10 (BSC, MSC, HLR) major software upgrade releases and software correction packages for our local customers Vodafone Greece, TIM Hellas and Cyta (April 1996-May 2000)
  • GPRS Network Verification tester in Ericsson Eurolab Deutschland (June 2000-September 2000)
  • GPRS Network Verification tester for Vodafone's GPRS network and Technical Project Leader for GPRS network software upgrade (October 2000-March 2001)
  • GPRS support engineer for Vodafone's GPRS network (April 2001-March 2002)
  • Team leader at the Packet Core & IP network team (Customer support & Integration department), which is responsible for the packet transmission systems (SGSN, GGSN, DXX, SDH, IP routers, IMS) for the operators in Greece and Cyprus (April 2002-November 2007)
  • The main responsibility of the department is the installation, integration and support of GSM and UMTS mobile telephony networks in Greece, Cyprus, Albania and Malta

Teacher of Informatics

09.1995 - 03.1996

Software Designer

INTRAKOM telecommunications Company
04.1992 - 09.1995
  • Company Overview: Software Designer for the Ericsson's AXE-10 telephony exchanges
  • In the first five months I have attended the relative training program
  • During this period, I have worked in Ericsson England, Guildford (March - September 1993) and also in MET (Matra Ericsson Telecommunications) in Paris (May – October 1994)
  • Software Designer for the Ericsson's AXE-10 telephony exchanges

System Administrator

Municipality of Eleftheriou-Kordeliou
12.1991 - 03.1992
  • Working with UNIX DG/UX operating system

Software Developer

A.C.A.
09.1988 - 11.1989
  • Company Overview: Software house
  • Working with various high level programming languages
  • Software house

Education

Post-graduate of “Engineering-Economic Systems” MBA program -

National Polytechnic School of Athens and the Universities of Athens and Piraeus
02.2005 - 02.2008

Graduate - Computer Science

University of Crete
09.1984 - 07.1988

Skills

Project scheduling

Personal Information

Nationality: Greek

Unions

  • Project Management Institute (PMI), PMP certified
  • Graduate Union of the Computer Science Department of the University of Crete

Interests

Road Running, Trail Running, Road Cycling, Mountain Biking, Skiing, Tennis, Music

Timeline

Customer Project Manager

Ericsson Hellas
12.2007 - Current

Post-graduate of “Engineering-Economic Systems” MBA program -

National Polytechnic School of Athens and the Universities of Athens and Piraeus
02.2005 - 02.2008

Systems Engineer

Ericsson Hellas
04.1996 - 11.2007

Teacher of Informatics

09.1995 - 03.1996

Software Designer

INTRAKOM telecommunications Company
04.1992 - 09.1995

System Administrator

Municipality of Eleftheriou-Kordeliou
12.1991 - 03.1992

Software Developer

A.C.A.
09.1988 - 11.1989

Graduate - Computer Science

University of Crete
09.1984 - 07.1988

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