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Tanasescu

Service Manager, HUAWEI TECHNOLOGIES SRL, BUCURESTI
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Experience
  • Service Manager, HUAWEI TECHNOLOGIES SRL, BUCURESTI
    April 2012 - present
    Customer Support Service
    Project Delivery
    Customer Network Maintenance in the agreed SLA
    Service Sales
    Contract negotiation
  • Core Network Manager, HUAWEI TECHNOLOGIES SRL, BUCURESTI
    January 2011 - April 2012
    Manage the Core Network Team supporting all WCDMA, UMTS, IMS, CDMA, EVDO Core Network Projects:
    -Core Network Project Design including: High Level Design, Low Level Design, Deployment Design, Data Transcripts;
    -Core Network Deployment including: Hardware Installation, Software Commissioning, Acceptance Tests, Commercial Launch;
    -Core Network Optimisation including: Network Inspection & Benchmarking, Optimisation Planning, Optimisation Implementation;
    -Core Network Support for commercially running projects including: Trouble Tickets and Emergency situation handling, SLA assurance, software updates;
    -Support for Migration, Swap-out, Cut-Over, IOT, Trial, Pilots;
    -Support for bidding and service sales, pre-sales technical support;
    -Support for survey and training.
  • PS & CS Core Network Manager, TELEMOBIL SA, BUCURESTI
    IT / TelecomTelecommunications
    November 2005 - December 2010
    TELEMOBIL - ZAPP Network - is a WIRELESS CDMA2000 3G-1X, 1xEV-DO and WCDMA/UMTS Operator.

    Project Based Key Areas of Responsibilities:
    -----------------------------------------------------------------

    -Manage the Desing, Implementation and Integration of ALU CDMA Network Elements in ZAPP Network;
    -Manage the Desing, Implementation and Integration of ALU EVDO Network Elements in ZAPP Network;
    -Manage the Desing, Implementation and Integration of ZTE UMTS Network Elements in ZAPP Network;

    -Manage the Desing, Implementation and Integration of ZTE WCDMA HSxPA Network Elements in ZAPP Network;
    -Manage the Desing, Implementation and Integration of ZTE CDMA & EVDO Network Elements in ZAPP Network;
    -Manage the Interoperability between Alcatel-Lucent and ZTE CDMA Network Elements;
    -Manage the whole subscriber database migration from Alcatel-Lucent iHLR to ZTE SHLR;
    -Find, Analyze and Implement Number Portability Solution in ZAPP CDMA Network;
    -Analyze and Implement Prepaid/IN Solution in ZAPP CDMA Network;

    Responsibilities, Achievements:
    ----------------------------------------------

    Manage the Core Network part - PS and CS - of ZAPP WIRELESS WCDMA/UMTS, CDMA2000 3G-1X and 1xEV-DO NETWORKS.
    •Coordinate the Core Network team for achieving the initial network performance goals and continuous improving the network performance. Monitor all key indicators and identify any system performance degradations, interprets and evaluates all necessary system parameters changes for a better overall performance of the core network and/or network elements.
    •Manage all functions related to Quality of Service parameters monitoring and enhancing.
    •Responsible for developing and validating the engineering studies for core network optimization purposes; supervise the traffic and performance analysis and reporting process; coordinate the network management platform administration for the most efficient and secure usage by both planning and operation personnel.
    •Develop Standard operating procedures for maintaining optimal network performance.
    •Coordinate overall Core Network capacity initial planning, acceptance and continuous optimization or upgrades of core switching network elements, for both hardware and software parts.
    •Develop cost benefit analysis for growth, additions and changes in Core Network System, value added services platforms etc.
    •Prepare related BOQ, supervise and document implementation of new software & hardware for Core Network System.
    •Coordinate the research and implementation of new products, features and technologies.
    •Coordinate and ensure proper testing and documentation of core network enhancements or changes participating to hardware and software acceptance.
    •Coordinate smooth integration of new services and capacity upgrades at the Core Network and VAS platforms level, plan and supervise the Billing Platform interaction, organize and provision for required reconciliation’s operation.
    •Coordinate Core Network team in offering Level 2 support for Technical Support Group and Operation & Maintenance Departments.

    Key Areas of Objectives:
    ------------------------------------

    •Capacity Optimization:
    oUtilization
    oGeographic / Service Distribution
    •Performance Optimization:
    oCall Processing
    oSignalling
    •Service Optimization:
    oVoice: Quality, LCR;
    oData: Quality, Throughput;
    oFix/Mobile: Capacity
    •Architecture Optimization:
    oLeast Cost Routing
    oCost effective Backhaul/Backbone
    oHighest Availability
    •Other Optimization / Planning & Design:
    oCapacity
    oPerformance – STP implementation
    oService – TrFO/RTO & VoIP/SIP implementation; IN implementation.
    oArchitecture – IP Backhaul implementation; Migration to IMS;
  • Network Switching Systems & Value Added Services Planning Engineer, SC TELEMOBIL SA, Calea Bucuresti Nr 2B Bis, Balotesti jud. Ilfov
    IT / TelecomTelecommunications
    September 2001 - November 2005
    TELEMOBIL - ZAPP Network - is a WIRELESS CDMA2000 3G-1X and 1xEV-DO Operator.

    Responsibilities, Achievements
    · System Capacity Monitoring and Engineering of CDMA 3G-1X FLEXENT Wireless Network Systems and 1xEV-DO Wireless Network Systems,
    · Monitoring, reporting and optimizing the network traffic and performance for CDMA 3G-1X FLEXENT Wireless Network Systems and 1xEV-DO Wireless Network Systems,
    · Manage and analyze traffic and performance of CDMA 3G-1X FLEXENT Wireless Network Systems and 1xEV-DO Wireless Network Systems with Watchmark Prospect Tool,
    · Overall Switching, Radio Access Network and VAS capacity initial planning, acceptance and continuous optimization or upgrades of core switching network elements, for both hardware and software parts,
    · Develop, provision and implement the numbering plan and related software parameters masks, design and implement the necessary signaling hardware and software switching elements, dimension the voice and data hardware and trunking parts as forecasted by the marketing plan and traffic trends,
    · Track and update Base Engineering Parameters when new cells and trunks are added,
    · Insure smooth integration of new services and capacity upgrades at the Switching, Radio Access Network Systems and VAS platforms level,
    · Prepare related BoQ, supervise and document implementation of new software & hardware for Switching and Radio Access Network Systems, perform acceptance for any changes and/or upgrades performed by vendors,
    · Implementation, Configuration and Administration of a complex Data Network with three levels: PSAX ATM Switching Network, Cajun Data Switching Network and Xyplex Data Terminal Server Network,
  • Telecommunication Engineer, UTI Systems SA
    IT / TelecomTelecommunications
    May 1999 - September 2001
    UTI Systems SA - provider of IT&C Turn Key Solutions and Alcatel & Ericsson Distributor for Romania (mostly for PABX Systems.

    Responsibilities, Achievements
    · I have worked in the sales and in the technical domain. I have made commercial offers, installation and maintenance for Erricson and Alcatel PBX Systems.
    · I keep in touch with external partners for commercial and technical issues.

    References, Other observations
    The most important project that I was involved in was : “Telecommunications System at the Subway”. In this project I have made the design, installation and programming for this system. The solution was made with a Network of Alcatel 4400 connected into a SDH Ring on Optical Fiber. This Network, organized in 55 sites, covers the entire area of Bucharest City Subway with 2000 users.
    I have made installation and programming for Alcatel 4400 Systems, Alcatel 4200 Systems, Erricson BP 250 Systems with Voice Mail, Network Management Center, DECT, Call Accounting, Traffic and Performance Observation.
    I have made installation and programming for a Video Conference Network on IP.
  • Telecommunication & IT Engineer, S.C. VLAMIR IMPEX S.R.L.
    IT / TelecomTelecommunications
    April 1998 - May 1999
    VLAMIR IMPEX S.R.L is a Karel and Telesis PABX Switches distributor for Romania

    Responsibilities, Achievements
    · I have worked in the sales and in the technical domain. I have made commercial offers, installation and maintenance for Karel and Telesis PBX Systems.
    · I made installation and maintenance for networks and computer systems.
  • Telecommunication technician, BUCHAREST FIREMEN BRIGADE
    April 1995 - April 1998
    Responsibilities, Achievements
    Siemens PABX operator.
  • Telecommunication technician, ROMTELECOM
    IT / TelecomTelecommunications
    October 1990 - April 1995
    ROMTELECOM - National Telecommunication Company.

    Responsibilities, Achievements
    I have worked as technician in a PSTN Switch.
Education
  • Huawei Training Center, BUCURESTI
    College / Postgraduate studies
    2012 - 2012
  • Huawei Training Center, BUCURESTI
    College / Postgraduate studies
    2011 - 2011
  • IT Academy - Project Management - PRINCE2, BUCURESTI
    High School / Vocational School
    2010 - 2010
  • IT Academy - IT Service Management - ITILv3, BUCURESTI
    High School / Vocational School
    2010 - 2010
  • Datanet System, BUCURESTI
    College / Postgraduate studies
    2010 - 2010
  • Tekelec Training Center in London - Egham - Training courses for Tekelec STP, SIGTRAN, Mobile Number Portability, Strainatate
    High School / Vocational School
    2008 - 2008
  • Lucent Technologies - CEMUG, BUCURESTI
    High School / Vocational School
    2003 - 2008
  • Lucent Training Center - St. Petersburg Russia - Wireless Networks Multiple Systems Networking, Strainatate
    High School / Vocational School
    2006 - 2006
  • Datanet Systems - Cisco - Training course for Cisco Networking – Interconnecting Cisco Network Devices (ICND)
    High School / Vocational School
    2006 - 2006
  • ZTE University - Shenzhen China - IN Prepaid System, Strainatate
    High School / Vocational School
    2006 - 2006
  • SUN - Romsys - Training course for Unix/Solaris – Administration and Networking
    High School / Vocational School
    2004 - 2004
  • Lucent Technologies - Training course for System Capacity Monitoring and Engineering for 1xEV-DO
    High School / Vocational School
    2004 - 2004
  • Lucent Technologies - Training course for 1xEV-DO RF Design Engineering and Call Processing
    High School / Vocational School
    2004 - 2004
  • Lucent Technologies - Training course for Flexent CDMA200 1xEV-Do Radio Access System OA&M
    High School / Vocational School
    2004 - 2004
  • STARENT - Training course for PDSN / ST16 Intelligent Mobile Gateway – System Administration & Configuration
    High School / Vocational School
    2004 - 2004
  • Lucent Technologies - Training course for Lucent 5ESS Switch Maintenance
    High School / Vocational School
    2001 - 2001
  • Comverse Training Center London - Training course for Comverse ISMSC Systems, Strainatate
    High School / Vocational School
    2001 - 2001
  • Lucent Technologies - Training course for Lucent 5ESS DCS CDMA Basic O&M
    High School / Vocational School
    2001 - 2001
  • Lucent Technologies - Training course for Lucent 5ESS Switch Traffic and Network Management
    High School / Vocational School
    2001 - 2001
  • Alcatel Training Center Vienna - Training course for Alcatel 4400 Systems, Strainatate
    High School / Vocational School
    1999 - 1999
  • Polytechnical University , BUCURESTI
    University (graduate)
    1991 - 1997
  • High School No. 13 (PTTR), BUCURESTI
    High School / Vocational School
    1985 - 1989
Skills
 Mobile LTE technology, Huawei Equipments: EPC-SAE Architecture: MME, S-GW, P-GW, HSS.

 Mobile IMS technology, Huawei Equipments: CSCF, MRFC, MRFP, HSS, AS, DNS/ENUM,

 Mobile WCDMA (UMTS) 3G & CDMA technology, Huawei Equipments: MSC, MGW, HLR, PDSN, GGSN.

 Mobile WCDMA (UMTS) 3G & CDMA technology, ZTE Equipments: MSC, BSC, MGW, RNC, SGSN, GGSN, CG, OMC, Node B.

 Mobile CDMA technology, Alcatel-Lucent Equipments: MSC- OMP Platform, ECPC, FMS; DCS – 5ESS, BTS- Modcell; ATM – PSAX Multiservice Media Gateway; Xyplex Network Terminal Server, Avaya Cajun Switch, Watchmark Traffic and Performance & Mobile Call Analyser.

 Mobile EVDO technology, Alcatel-Lucent Equipments: RNC, EVDO BTS Modcell, OMP Platform, PDSN – Cisco & Starent, DNS (BIND).

 Tekelec STP and MNP Eagle Platform.

 Cisco Switches (Catalyst 2950, 2955) and Routers (26xx, 36xx, 37xx, 72xx, 76xx). Huawei Switches Series 2300, 3900.

 Juniper SSG550, Huawei Eudemon Firewalls

 LAN/WAN, Unix, TCP/IP, IP Tools, VoiceOver IP, ISDN, ISUP, IS-41, GSM MAP, 3GPP/3GPP2, SS7, SIGTRAN, Diameter, H323, SIP.

 IP Switching and Routing, STP, VTP, VLAN, HSRP, VRRP, OSPF, BGP; CCNA, CCNP level.

 Project Management PRINCE2 certification;

 IT Service Management ITIL v3 certification.

Specialties
CS & PS Core & Access (RNC, BSC) Network for Mobile Networks - WCDMA (UMTS) & LTE & CDMA :
 Planning;

 Engineering & Design;

 Implementation, Integration, Deployment;

 Traffic and Performance Analysis;

 Optimisation;

 Technical Support.
Spoken foreign languages
  • English - Advanced
  • French - Medium
Certifications (activities)
Hobbies
Tourism/Excursions, Computers/Internet

     
 
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