Jean-Michel GRZADKA

En résumé

Entreprises

• Huawei - Fixed IMS Core NW Back Office Consultant (Contract Role)

  Boulogne Billancourt 2016 - maintenant - Operation. Maintenance and Support of Live fixed IMS CORE networks (over HFC/DOCSIS)
  - Diagnostics on IMS CORE Elements and troubleshooting of impacted resources
  - Handling of problem ticket requests raised by customers within defined SLA
  - Assist in engineering, testing and rollout of newly defined products/services
  - Apply newly available features, software upgrades and hardware products

• Qualcomm - Network Operator Test Support Consultant (IMS services over 4G / LTE) (Contract)

  Paris 2013 - 2015 Carry out IOT testing of VoLTE/IMS solutions on LTE / 4G Snapdragon powered handsets and provide support to EU Operators and OEMs. Namely, Voice over LTE (VoLTE), Video Telephony over IMS (ViLTE), SRVCC over 2G/3G, SMS over IMS / SGs, Supplementary Services and Emergency Calls over IMS and Ut Interface (based on GSM IR92 & IR94 profiles and 3GPP & RFC specs).
  Mobile handset Testing & debugging for SIP/IMS/VOLTE/IMS services. Testing and troubleshooting experience using QXDM, QCAT, QPST and Wireshark tools. Good knowledge of 3GPP LTE Radio Access Technology such as RRC and NAS layers.

• Intel - Audio Modem Application Test Consultant (at Intel Ultra Mobility Group - France)

  Meudon 2011 - 2013 Perform requirement validation & functional testing of Audio Modem Applications (HD Voice and VOIP) on Smartphone products based on the Intel® Atom™ processor technology running on the Google Android mobile operating system

• Ericsson - 3G Handset Integration Manager

  MASSY 2005 - 2008 At Ericsson Services Ltd (Managed Service Partnership with Hutchison 3G UK), I carried out Management of Integration and testing of 3rd party native and Java applications into handsets launched on the 3 UK mobile network.

• Hutchinson - 3G Handset Applications Design & IOT/Field Test Engineer

  Paris 2002 - 2005 Hutchison 3G is aslso known in UK as 3.
  Work with handset vendors at all stages of handset applications development, from initial specification (SOC), testcases design/creation and test environment setup, to final testing on devices. Also carry out IOT & Field testing of handset applications with the handset vendors.

• Alcatel Lucent - GSM/GPRS Prepaid Service NPI Software Engineer

  Paris 2000 - 2002 Deploy, test and support of the 'SurePay' Prepaid Service; an Intelligent Network product developed by Lucent Technologies for GSM, GPRS and UMTS Mobile networks.

• ERA Technology Ltd - Telecoms Software Test Engineer

  1996 - 2000 Located at British Telecom Adastral Park in Ipswich, UK. Testing of BT services offering voice, fax and internet communication as well as free BT internet services such as BT Access and BT Connect as well as e-commerce applications

• SPEG - Electronic Technician

  1993 - 1993 SPEG was a French company that designed, manufactured and repaired power supplies
  
  Role: Electronic Technician specialised in power supplies (1 year)
  
  I had the technical responsibility of the after-sales service department that involved liaising with customers to agree repair quotes, repairing and testing of deficient civil and military power supplies

• French Navy - Role: Radar and Electronic Warfare Operator & crew member

  1985 - 1988 I was a crew member responsible for air or sea radar traffic control and electronic warfare

Formations

• Cambridge English Language Assessment (Cambridge)

  Cambridge 1997 - 1998 Cambridge Certificate of Proficiency Level
  
  * Fluent English (Cambridge Certificate of Proficiency Level 5 in English -
  * Golf, tennis, learning languages, travelling ;

• ECE Paris

  Paris 1994 - 1996 Diploma
  
  : Electronic Engineering degree specialized in telecommunication networks at the 'Ecole
  Centrale d'Electronique de Paris' (ECE), a French University for Electronics and Computer Science

• ECE Paris

  Paris 1990 - 1992 BTS Electronique
  
  Centrale d'Electronique de Paris' (ECE), a 1990-92 : BTS Electronique: `Advanced technical diploma in Electronics'

• ECE Paris

  Paris 1988 - 1990 BAC
  
  : BAC Electronique: `Technical diploma in Electronics'
  MAIN COMPETENCES
  
  
  * IMS based Services testing over Fixed Broadband/Fibre and 4G/LTE Mobile Network Technology such as Voice over LTE (VoLTE), SR-VCC to 2G/3G, SMS over IMS, Supplementary Services over IMS, Video Telephony over IMS and Ut Interface (for management of Suppl. Services over XCAP)
  
  * Audio modem testing, audio processing

Réseau

• Arnaud GEOFFROY

• Philippe ROULIE

• Samy KEGHIDA

• Sylvain LEBATTEUX