Career Profile

 

IMS/VoLTE/VTLTE Core Verification Engineer, Qualcomm, USA

Telecom Software Developer, Loose Wire, Canada

Senior CS/IMS/EPC Consultant, SaskTel , Canada

Senior EPC/CS/PS Core Consultant, Nokia Siemens Networks, Canada

Senior CS/PS Core Planning & Optimization Engineer, Nokia Siemens Networks, Canada

Network Planning & Optimization Manager, Nokia Siemens Networks, Iran

CS Core Planning & Optimization Engineer, Nokia Siemens Networks, Iran

NSS/BSS Planning Engineer, Parsiratel (Ex-Nokia Partner), Iran

RF/Microwave Circuit Designer, Iran Telecommunication Industries

 

 

Skill Profile

 

·                 Design, Implementation and troubleshooting of LTE/PS/CS core networks

·                 Design and implementation of VoLTE/IMS networks (GSMA RCS and One Voice profile/GSMA VoLTE)

·                 Signalling verification, parameter level analysis and troubleshooting (Diameter, SIP, GTP, SS7, LDAP)

·                 Interface integration and message flow verification (Diameter, SIP, GTP, SS7, LDAP)

·                 Commisioning, Integration and torublehsooting of NSN VoLTE protfolio including ATCA IMS(CFX-5000), ATCA TAS, ATCA MGW and HSS/One-NDS

·                 ATCA IMS(CFX-5000), ATCA TAS and ATCA MGW software upgrade and regression testing

·                 EPC/VoLTE KPI analysis

·                 End-to-End multi-vendor VoLTE design/implementation consultancy

·                 UE device test and verification – QXDM, Wireshark

·                 Telecom virtualization/cloud - Openstack

·                 Telecom big data implementation - Hadoop

·                 Telecom SDN (Software Defined Networking) - Openflow

·                 C/C++ embedded software developement - FPGA/DSP

·                 Telecom performance simulation - MATLAB, Simulink, NS-3, LENA

·                 Test automation – Selenium, TTCN, Excel VBA, Linux and python scripting

·                 SDR (Software Defined Radio) implementation - USRP (Universal Software Radio Peripheral)

·                 Protocol Stack implementation

·                 Operation, maintenance & troubleshooting of NSN EPC and CS/PS core products

·                 Dimensioning EPC and CS/PS core networks for tendering & presales

·                 Expert in DX200, IPA2800 and ATCA platforms

·                 Cisco ASR5K platform operation and maintenance

·                 High level and low level design preparation

 

 

Experience Details

 

Qualcomm     

IMS/VoLTE/VTLTE Core Verification Engineer
Test Automation dveleoper                                                           Aug-1015 Till Date

·                  End-to-End testing and verification of Rel’10/11 VoLTE/VTLTE call flows

·                  Integration, configuration, testing and verification of virtualized IMS Core

·                  Integration, configuration, testing and verification of virtualized EPC Core

·                  Test automation developement

 

 

Loose Wire     

Telecom Software Developer                                                              Nov-2014 Till Feb-2015

·                  Embedded software developement of LTE physical layer for a SDR Femtocell

·                 UE testing and verification

·                  End-to-End multi-vendor VoLTE design/implementation consultancy

 

SaskTel                                                Core Modernisation Project

Senior CS/EPC/IMS Consultant                    Jul-2013 Till Sep-2014

·                  Verification of vendor capabilities and roadmaps

·                  Verification of SOW, SOR of the contract

·                  Providing technical advice/support to SaskTel during Core modernization project

·                  Supervise vendor activities from design to implementation, ATP, IOT and sign off

·                  Huawei iManager M2000 configuration

·                  Huawei eNodeB configuration

 

 

NSN-CANADA Bell Canada VoLTE Trial

Senior EPC/CS/PS Core Consultant May-2012 Till June-013

·                  Providing technical advice/support to Bell VoLTE RFQ/RFP task force

·                  Providing technical advice/support on VoLTE tiral project in Bell lab using NSN’s ATCA TAS / ATCA IMS platform

·                  ATCA IMS (CFX-5000) commisioning, Integration and troubleshooting training

·                  ATCA HSS operation and maintenance and acceptance testing

·                  IMS protocols and signaling training

·                  Datafill, TPD and DNP preparation

·                  High level and low level design of the IMS/VoLTE network in Bell lab

·                  Part of implementation and integration team

·                  Performing ATP and IOT

Achievements:

Performing the first successful testing of SRVCC in a commercial environment in North America using NSN ATCA equipments

Winning IMS/VoLTE implementation and ATCA core modernization contracts with Bell Canada

 

 

NSN-CANADA        Montana PCS iHSPA rollout / Telus VoLTE tendering

Senior EPC/CS/PS Core Consultant                                                              May-2012 Till June-2013

·                  Providing technical advice on Montana PCS iHSPA rollout

·                  Detailed planning of FleciNS/FleciNG/MSS/MGW/SGSN in Montana PCS network for iHSPA integration

·                  Providing technical advise to Telus VoLTE RFQ/RFP task force

 

 

NSN-CANADA           SaskTel Consultancy Service

Senior Converged Core Consultant May-2011 Till Apr-2012

·                  On-site customer support

·                  Knowledge transfer to customer team as part of knowledge sharing part of the consultancy service

·                  Implementation of new features in SaskTel network

·                  Supporting local and remote (Dallas, GCC) care teams in resolving trouble tickets

·                  Supporting SaskTel network element upgrades

·                  Providing technical advice to SaskTel’s wireless planning and network support teams

·                  Coaching and advising SaskTel on network expansions and new service additions

Achievements:

Getting A+ customer feedback from SaskTel Wireless Network Support manager

Increasing customer faith by providing technical support using a proactive approach

 

 

NSN-CANADA          Bell Canada UMTS Rel'4 Rollout Project

Senior CS/PS Core Planning & Optimization Engineer Jan-2009 Till Mar-2011

 

·                  Preparation of source data (data fill) for network elements

·                  Planning network interfaces

·                  Planning internal/external IP connectivity

·                  Preparation of detailed design documentation

·                  Providing work order request from the customer regarding modifications in the network

·                  Providing optimization services

o    Monitoring network measurements & statistics

o    Traffic rerouting for getting better load distribution in all core nodes

o    Signaling load balancing

Achievements:

Getting A+ customer feedback from Bell’s technology and engineering teams

 

 

NSN-IRAN               MCCI CS Core Rel'4 Migration Project

Network Planning and Optimization Project Manager                   Jun-2008 Till Dec-2009

1.     Management Tasks:

·                  Looking after project cost and revenue to meet a suitable GM (Gross Margin)

·                  Looking after project resources and headcounts

·                  Supervision of all network planning activities

·                  Main contact with the customer & CBT from planning team

·                  Preparing cost, revenue & resource forecast reports

 

2.     Planning Tasks:

·                  Source data preparation (data fill) for network elements (MSS/MGW/HLR) in M14 & U4 software levels

·                  Planning network interfaces (SS7, SIGTRAN, Megaco(H.248), INAP, CAP, MAP, SMRSE, ISUP, BSSAP, etc.)

·                  Preparing migration scenario of Rel'99 MSCs with Rel'4 MSS & MGWs

·                  Dimensioning for Phase3++ core migration project and presales activities

·                  Preparation of detailed design documentation

·                  Providing optimization services

·                  Planning various activities hardware expansions and SD verifications & troubleshooting

·                  Planning network migration

Achievements:

Getting the first call after 1.5 months from start of the project

Developing more business opportunities for NSN with MCCI (expanding the project scope)

Achieving 30% GM for the project

About MTN-Irancell: First cellular operator in Iran, Current Subscriber Base: 37 million, Technology: GSM/GPRS/EDGE, Website: www.mci.ir

 

 

NSN-IRAN       MTN-Irancell Project

CS Core Planning & Optimization Engineer                            Apr-2006 Till Jun-2008

·                  Preparation of source data (data fill) for network elements (MSS/MGW/HLR) in M13 & U3 software levels

·                  Planning network interfaces (SS7, SIGTRAN, Megaco(H.248), INAP, CAP, MAP, SMRSE, ISUP, BSSAP, etc.)

·                  Phase 4,5,6&7 tendering project support

·                  Dimensioning for Phase3 core expansion project and presales activities

·                  Preparation of detailed documentation

·                  Providing work order request from the customer regarding modifications in the network

·                  Providing optimization services

·                  Handling special projects required by the customer

·                  Planning and designing various activities like migration of network elements, hardware expansion

·                  Planning how new elements (MSC, MSS, MGW and HLR) will be connected to the existing network of the customer (routing, signaling, charging, etc.)

Achievements:

Finalizing Phase2 with 42 core nodes for 9.7 million subscribers

Finalizing Phase3 tendering for 16.2 million subscribers

About MTN-Irancell: Second private operator in IRAN, Current Subscriber Base: 15 million, Technology: GSM/GPRS/EDGE, Website: www.irancell.ir

 

 

Parsiratel             MCCI GC162 Phase3 Expansion Project

NSS / BSS Network Planning Engineer May-2005 Till Apr-2006

·                  Preparation of source data (data fill) for network elements (MSC/HLR) in M11 software level

·                  Planning network interfaces (SS7, SIGTRAN, INAP, CAP, MAP, SMRSE, ISUP, BSSAP, etc.)

·                  Planning and designing various activities like migration of network elements and hardware expansions

·                  Planning how new elements (MSC and HLR) will be connected to the existing network of the customer (routing, signaling, charging, etc.)

·                  Part of NSS/BSS rollout team

·                  Dimensioning for MCCI GPRS/EDGE integration project

·                  Preparation of Radio & Transmission detailed planning

·                  Commissioning & Integration Ex-Nokia Macro BTS

·                  Commissioning & Integration Ex-Nokia FlexiHopper microwave radio

About Parsiratel: Ex-Nokia partner in GC162 Pahse3 Expansion Project for delivering 2000+ sites & core expansion

About MCCI: First operator in IRAN, Current Subscriber Base: 20 million, Technology: GSM/GPRS/EDGE, Website: www.mci.ir

 

 

IRAN Telecommunication Industries

Senior RF/Microwave Circuit Design EngineerSep-2003 Till May-2005

·                  Integration of Carin 200 Fixed Telephone Switch for TCI (Tehran Telecommunication Company)

·                  Integration of high capacity PBXs for other customers

·                  Design & Implementation HF-VHF-UHF RF circuits

o    LNA (Low Noise Amplifier) design

o    Printed circuit board design

o    Power amplifier design

o    Modulator/Demodulator design using DSP (Digital Signal Processor)

·                  Design & Implementation of microwave radio circuits

o    LNA (Low Noise Amplifier) design

o    Microstrip boards design

o    Microwave combiners/splitter design

o    Microwave amplifiers design

o    Microwave matching devices design

·                  Design & Implementation of HF-VHF-UHF two way radios

o    From 10 to 500 Km range

 

 

Education

·                  B.S. in Telecommunications Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, 1999-2003

 

 

Computer Skills

·                  Expert in using Microsoft Windows

·                  Expert in using Microsoft Office (Microsoft Excel, Access, Word, Project, PowerPoint, Visio and Outlook)

·                  Python/Perl scripting

·                  Intermediate Linux/Unix skills

·                  Web development using PHP/MySQL

·                  C/C++ programming

 

 

Professional Software Experience

·                  OpenIMS Core

·                  Software Defined Radio

·                  Asterisk/Freeswitch

·                  Mobicents Application Server

·                  Wireshrak

·                  Tektronix Iris/GeoProbe

·                  Selenium/Appium

 

 

Personal Profile

·                  Last name: Dabir, First Name: Hamid

·                  Country of Residence :  Canada (Citizen)

·                  Languages: English, Farsi (Native)