alexander jacob, Team Lead ITMC Network Operation Center

alexander jacob

Team Lead ITMC Network Operation Center

Mobily Saudi Arabia

Location
Philippines - Quezon City
Education
Bachelor's degree, Electrical Engineering
Experience
23 years, 6 Months

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Work Experience

Total years of experience :23 years, 6 Months

Team Lead ITMC Network Operation Center at Mobily Saudi Arabia
  • Saudi Arabia - Riyadh
  • August 2009 to December 2020

Assists Engineers in Hardware and Software troubleshooting of Ericsson ITSC/ISTP switches and systems.
Oversee and participates in commissioning and acceptance tests for ITSC/ISTP switches and systems based on customer specifications and manufacturer recommendations.
Provides technical support to Mobily Wholesales (WS) and Carrier Operations (CO) teams for the operations/provisioning of international services (IDD, SMS and Hubbing)
Supervise Engineers in performing circuit provisioning and testing of new interconnectivities.
Support ITSC Engineers in preparing DT for new interconnectivities, migration activity, SCCP change, ISUP/Routing etc.
Perform routing implementation of IDD destinations based on the Routing Order (RO) from ASCADE LCR System.
Performs traffic analysis of IDD traffic to ensure that the KPIs are within the benchmark
Analyze and perform checking and analysis for any CDR issue.
Performs number/routing/eos analysis, SCCP GT analysis etc.
Troubleshooting and fault resolution of complaints raised by Network Performance Team (NPM) such as KPI Degradation (NER, ASR, ACT), MAP/SCCP degradation and steering issue.
Provide technical assistance and support to IREG/Roaming Team.
Review and check all planned outages/activities and provide recommendation.
Assists Engineers in performing support for the Traffic Steering System/Preferred network.
Performs daily Preventive Maintenance Report (PMR).
Database Management and Allocation of resources.
Assists to raised and manage MDT/TCN/SOR via the BMC Remedy Systems.
Assists in troubleshooting and fault resolution of any network related issues raised by foreign admins.
Coordination/testing any TXM issues international and domestic.
Prepare operational and top level management reports.
Provide assistance to Ericsson Project Team and Field Switching Engineers (FSE).
Prepare IMC process and escalation procedures to improve the ITSC operations.
Coordinates and discuss important ITSC issues with the Mobily Thin Layer Group (customer).

Supervisor at REWSS
  • Philippines
  • April 2007 to July 2009

Duties and Responsibilities:
•Provides technical support to client's network performance and its applicable software tool including Ericsson MSS/MGW BSS/BSC and MSC RNC and UMTS, Alcatel Atrium Spatial MSS/MSC/MGW/TSS, Nokia MSC / BSS /BSC, Nortel MSC/TSS /BSS/BSC.
Proactively evaluates client's network traffic and identify nss/bss related and potential faults as specified in their KPI. Improve and innovate software tools for use in various telecom vendors.
•Provide 24-hour customer technical support on Rewss Tool solutions from the Telecom perspective.
•Handles the detailed telecom requirement analysis for NSS AND BSS solutions to produce functional design specifications.
•Collaboration and coordination with the internal teams and other support teams outside the GSC in the implementation, testing, and support of NSS performance/traffic solutions
•Responsible for the proactive monitoring of clients network performance as part of the SLA.
•Performs other telecom support tasks deemed vital in the network operations center (N O C ) as assigned by the immediate superior ( Technical Lead Performance Engineer).
•Monitor Network Performance of T-Mobile, Dobson, Alcatel-Lucent using Alcatel Atrium, Nokia, Nortel, and Ericsson using REWSSTOOLS
•Analyzes and responds to customer trouble tickets, respecting the agreed lead times
•Validates optimization and performance improvement opportunities as well as high level network solutions using our tools (REWSSTOOLS)
•Monitor performance of the switching network nodes in real time, rapidly detect any faults, and provide a comprehensive suite of tools for problem diagnosis and recovery. In addition to these real time monitoring and troubleshooting systems, REWSS also develops tools to help operators benchmark, plan and configure their networks to accommodate for current demands and expected growth.
•Handling of Customer Service Requests customers including advanced investigations and solution handling.






Sun Cellular GSM, Quezon City, Philippines
Supervising Engineer - Operation and Maintenance for Switch and GPRS
Network Operations Center

Supervising Engineer at Sun Cellular GSM
  • Philippines - Quezon City
  • October 2004 to March 2007

Duties and Responsibilities:
•NOC  Liaise and Collaborate with Engineering/Planning group in Preparing and Implementing Network-wide modifications to integrate new network elements to the existing network.
 Analyze and troubleshoot Subscriber and Network related faults.
 Configure Core Network Nodes and Perform Multi-Vendor Verification between existing Alcatel GSM Nodes and:
 Ericsson MSS R3.1 (MSC-Server R11 & MGW R4) Nodes.
 Huawei MSOFTX3000 Nodes.
 Tekelec Eagle STP
 and other third party service/equipment supplier
• Handles and secures database of NSS/Core Network equipments / Performs Operation, Upgrades, Administration and Configuration of:
 Alcatel E10 SSP Switch, A8360 RCP, A8360 HLR, 1300
• Handles and secures NSS/Core Network Element’s database-- provisioning, modification and configuration
 Signaling Link/Interconnection implementation and testing,
 System Parameter modification, activation & deactivation,
 MSC Translation implementation and modification,
 BSC/BTS data creation and modification,
 SS7 Protocol tracing and analysis (ISUP and MAP) SS7 compatibility testing for voice & SMS
• Conduct SS7 traces at Steuleus SS7 Probe system installed and connected directly to all ISUP links, INAP links. Conduct investigation for unreachable national and International codes /numbers through interrogation at MSC and RCP/ VLR system via the access of Network Maintenance Center terminals. Handle the user access of the TMDS/ REMEDY users of Call Centers (password and user ID).Provide and develop Call Center probing questions which directly integrated with the REMEDY system.
• Responsible for the operation and maintenance of all network elements that comprises the NSS (Alcatel 1000 E10, Huawei, Ericsson MSS R3.1 (MSC-Server R11 & MGW R4) Nodes. of the GSM network. This includes fault clearing, modification of Switch parameters, i.e., trunk groups, SS7 links and code points and routing.
• Network troubleshooting using STELEUS Process7 that consolidates all the major signaling links (SS7) of the network (MTP/SCCP/ISUP/MAP/CAP/ BICC) for centralize monitoring, analysis of the ISUP messages, traffic and gathering of statistics (ASR and NER) for network performance
• International Roaming Implementation and Testing: IR21 data filling, SCCP translation building, IREG testing, IR troubleshooting (Protocol Tracing, SS7 analysis)
• Monitored, diagnosed, repaired subscriber features problem.
• Analyzed diagnostic test results and trouble logs on HLR remote switch equipment.
• Activate and deactivate of lines and feature translation.
• Provided support and solutions for system improvement
• Coordinate other groups (R&M, IN, VAS, SSITP, Call Center, Business Center) regarding subscriber trouble
• Escalate trouble to my supervisor/team leader in case of system outage or pending complex trouble.
• Prepares all necessary reports and routine checks and maintenance as required (daily, weekly & monthly) for all Alcatel, Huawei and Ericsson Nodes..
• Performed issued Work Order for proper network implementation and operation.
• Provide resolution to complaints through isolation and troubleshooting using the existing tools and access to the following network element: HLR, MSC, VLR, VMS, and IN platform coordination.
• Modify, define and revise subscriber profile at HLR of Alcatel, Ericsson system, as per need basis, to further resolved and correct problem.

Test Engineer at GLOBE TELECOM
  • Philippines
  • August 2002 to July 2004

Duties and Responsibilities:

•Responsible for the incoming and outgoing of new telecoms equipment .
•Perform testing of all newly delivered equipment for phase 10 project, physical and actual, and advise the custodian if there is any discrepancy.
•Responsible in accepting and monitoring of new telecoms equipment.
•Provide support and solutions for system improvement.
•Performed issued work order for proper network implementation and operation.
•Responsible for the receiving of issuance ORF document form coming from different suppliers like ETSI, REI, MITSUBISHI, TOMEN, ALLAN DICK CORP., FMIDC, APPLIED SYSTEM for towers and gensets.
•Responsible for the testing acceptance of newly delivered gensets coming from suppliers like FMIDC, APPLIED SYSTEM.
•Performed inventory checking for all incoming and outgoing towers and gensets coming from different suppliers.
•Escalate report to my superior/ supervisor in case of any discrepancy regarding gensets and towers.
•Designate all incoming gensets of suppliers to their respective allocation as advise my

Telecoms Engineer at Bayantel
  • Philippines
  • January 1997 to March 2002

in the operation and maintenance of Nortel Digital Multiplex System (DMS) 100/200 (LEC APC09) switches RLCM, OPAC, Key Telephone over Nortel Switch Network Resource Manager and TN-1X / SDH and DMS translation and System commands transmission equipment. This includes fault clearing, modification of Switch parameter.
•Responsible for the 24 hours response that is deployed on both minor and major alarms hardware side or power related faults DMS Switch terminated Outside Plant Access Cabinet (OPACs). Verify all signaling link alarm from OPAC going to Switch if properly terminated.
•Responded all emergency call during Switching alarm outage, power blackout and Meralco schedule brownout.
• Monitored, diagnosed, troubleshoot and repaired DMS 100/200 (LEC APC09) digital Switch system as well as the Transmission Alarm for Corrupt Data and reconfigure the system alarms cause by power interruption, sub rack card alarm, or the 2 Megabit Card.
•Analyzed diagnostic test results and trouble logs on all Remote Line Concentrating Module (RLCM), Peripheral Line Group Controller (PLGC) and remote switch equipment.
•Performed function test on LCM, LGC, OPAC, RLCM, and TN-1X /SDH transmission equipment.
•Performed issued Work Order for proper network implementation and operation.
•Assist Switch Engineer in the office data modification, fault isolation and restoration of switching complex trouble.
•Oversees the overall duties and responsibilities of the OMC, which include first level fault isolation, alarm monitoring and software management administration.
•Coordinate other groups (R&M, ITDD, CSD, OSP and Payphones) regarding subscriber problem from OPAC side going to Main Distribution Frame
•Activate and deactivate of lines and feature translation.
•Provided support and solutions for system improvement.
•Monitor housekeeping and required room temperature and humidity at the switching room and C.O. power room.
•Escalate trouble to my supervisor/team leader in case of system outage or pending complex trouble.
•Responsible for the technician in his group.
•Performed testing of all found defective cards and to send PIRC group for replenishment. Maintain records and stock level.
•Performs routine check and record voltages and current loads of rectifier, batteries and inverter equipment.
•Monitor the power load distribution and performance of all power equipment.
•Performs function test of alarms and other controlling unit and load test (charging and discharging of Batteries) in the power equipment.
•Perform preventive and corrective maintenance on all equipment as per standard operating procedures.
•Conduct preventive and corrective maintenance on Main Distribution Frames (MDF), UPS, Power Rectifiers, and Inverters.
•Operation and maintenance of Back-up generator and Back-up Batteries.
•Preventive maintenance of OPAC and RLCM cooling system.
•Testing of proper grounding.
•Installation of isolation OPAC transformer.

Education

Bachelor's degree, Electrical Engineering
  • at Rizal Technological University
  • May 2002

Specialties & Skills

Switches
Alcatel
Nortel switches
COMPUTER HARDWARE
ENGINEERING
LEADERSHIP
MICROSOFT ACCESS
NETWORK INSTALLATION
NETWORKING
SUPERVISORY SKILLS
SWITCHES

Languages

English
Intermediate