Ioannis Kyriazis

Berufserfahrung von Ioannis Kyriazis

• Bis heute 1 Jahr und 11 Monate, seit Aug. 2022

  Senior Security and Network Architect/Engineer

  Undisclosed Company

• 1 Jahr und 7 Monate, Feb. 2021 - Aug. 2022

  Senior Security and Network Architect/Engineer

  AT&T

• 2 Jahre und 6 Monate, Juli 2018 - Dez. 2020

  Senior Security and Network Architect/Engineer

  Liberty Global Operations B.V.

• 8 Monate, Nov. 2017 - Juni 2018

  Senior Security and Network Engineer

  European Patent Office

• 6 Monate, Mai 2017 - Okt. 2017

  Senior Security and Network Engineer

  DMC/AMC Networks

• 1 Jahr und 10 Monate, Juli 2015 - Apr. 2017

  Senior Network and Security Engineer

  Liberty Global Operations B.V.

• 6 Monate, Jan. 2015 - Juni 2015

  Senior Network Engineer

  KPN

• 1 Jahr, Jan. 2014 - Dez. 2014

  Support Services Network & Packet core Engineer

  Tech Mahindra

• 7 Jahre und 2 Monate, Nov. 2006 - Dez. 2013

  Support Engineer in Core Network and IP & GPRS

  Ericsson Telecomunicatie B.V.

  Departamento: Tecnología. Soporte y Aplicaciones, Defect Management Software corrections rollout Everyday network troubleshooting

• 7 Jahre und 1 Monat, Nov. 2006 - Nov. 2013

  Sr. Telecom Engineer

  Ericsson Telecomunicatie B.V.

• 1 Jahr und 10 Monate, 2005 - Okt. 2006

  Senior Telecom Engineer

  Teleca Solutions S.A.

  Departamento: Tecnología. Desarrollo de Software, Performed the design of test cases and testing of NEED functionality in a BT21c node, on IUP and ISUP protocols. Performed the testing of market adaptations for the introduction of NEED functionality in the IN/SSP NGS node of BTs intelligent network. Provided support and guidelines to a less experienced team leader during the planning and execution tests for NGS project (BT-TNA). Performed the configuration management of a 5 AXE node network, with NGS (SSP)

• 2005 - 2005

  GSM/GPRS/ System Tester

  Ericsson France

  Departamento: Tecnología. Infraestructura y Redes, Performed the testing of market adaptations for the introduction of R11 (Bouygues Telecom). Performed the configuration (DT creation and loading) and testing of the introduction of FTUP+ devices to an AXE810 (ET1551) configuration (interworking tests with ISUP were performed). Prepared and tested the configuration in order to perform CAPL testing (R10). Performed the building-preparation of the R10TSC node dump.

• 2002 - 2004

  PC LAN 1st line Support, Trainer

  CPO Consulting

  Departamento: Tecnología. Soporte y Aplicaciones, Performed LAN installations, PC SW/HW upgrades and updates. Everyday troubleshooting to common LAN-Virus-Spyware problems. Trained with success 3 teams for the E.C.D.L. certification (Futurekids).

• 2000 - 2001

  C7 System Tester, TCM support, Function Tester, Basic Tester

  Ericsson España

  Departamento: Tecnología. Desarrollo de Software, Designed and tested test descriptions for the Characteristics test for the signaling part of the CCSPH2 project based on R9.0 (UMTS). I also provided with success test configuration management (TCM) services. Designed and tested in Mexico-Saltillo (where I was detached for the needs of Ericsson Mexico) the joint tests (layer 2 protocol testing) for the newly introduced in Ericsson (for the Chinese market) high speed link (HSL) function.

• 1998 - 2000

  GSM/GPRS System Tester - Overall Test Leader-Test Manager

  Ericsson France

  Departamento: Tecnología. Desarrollo de Software, Designed and tested test instructions for the Application System Verification of the FR86 AS based on R8.0 for the Mobile Positioning Server, CAMEL Phase2 and SCCP Policing functions. Planned the strategy and supervised the tests performed for the introduction of several new APZ and IOG functionalities for the Market Application System. Established the recruitment and headed up the team of thirteen (13) engineers that tested the Central Transit International

• 1997 - 1998

  Senior System Tester

  Ericsson Telecom AB

  Departamento: Tecnología. Desarrollo de Software, Designed and executed Interaction test instructions for the function test of the Sirius project. Planned, prepared and executed the test instructions for the extended function test of the Sirius project. Tested and desk-checked approved corrections and CNIs for the follow-up of the FMP4.1, Helios and Sirius project.

• 1995 - 1997

  Senior System Tester / Test Advisor

  MET (Matra Ericsson Telecom)

  Departamento: Tecnología. Desarrollo de Software, Performed the updating and execution of application system verification test instructions for the Phase-E project (FMP3 equivalent project). Tested and desk-checked approved corrections and CNIs for the follow-up of the Phase-E project (FMP3 equivalent project). Provided coordination and advisory during the design and execution of signalling interworking tests for the FMP4.1 project. Designed and performed a part of stability tests using the MGTS tool.

• 1990 - 1995

  Integration Tester, System Tester, Function Tester

  Intracom S.A.

  Departamento: Tecnología. Infraestructura y Redes, Installation and testing of several AXE-10 exchanges for the Greek PTT (O.T.E.). Performed interconnection testing during the integration testing of the CCS No.7 signalling in several exchanges (local and transit) for the Greek PTT (O.T.E). Performed with success HW extensions/upgrades (mostly GS extension). Designed and tested scripts (with the aid of UPSIM and MGTS) to assure the correct interworking and overall performance between AXE-10 exchanges and EW

Ausbildung von Ioannis Kyriazis