Engineer Customer Service

JACYL LOYCE C. BISQUERA

+658******* (Singapore)

Email: ***********@*****.***

PROFESSIONAL SUMMARY

Experienced in network integration, configuration, testing and troubleshooting on Packet Core Network for 2G/3G and Evolved Packet Core for LTE.

Performs network planning/integration/configuration/troubleshooting, hardware and software acceptance testing, service acceptance testing, for new services/projects/network elements under Packet Core Network for 2G/3G and Evolved Packet Core for LTE.

Performs change configuration and management and troubleshooting of network elements under Packet Core network in support of various data services integrated through Packet Core Network.

Implements configuration changes and hardware/software upgrades in testbed environment (SGSN, GGSN, SASN) and performs service testing prior releasing to production network.

EDUCATIONAL BACKGROUND

Bachelor of Science in Information Technology (June 2004 – May 2007)

Mapua Institute of Technology, Makati, Philippines

PROFESSIONAL TRAININGS, SEMINARS and WORKSHOP

Ericsson Mobile Internet Enabling Proxy (MIEP 3.0) - Ericsson Telecommunications Inc. Phil.

Internet Protocol 101 - Globe Telecom

Ericsson Service Aware Support Node (SASN R5) - Ericsson Telecommunications Inc. Phil.

Cisco Networking Academy Program (CNAP Sem 1-4) - Mapua Institute of Technology

Multimedia Messaging Service (MMS 3.0) – Acision Innovation Assured, Phil.

Microsoft Windows 2003 Server - Mapua Institute of Technology

Open Source Technologies & Bayanihan Linux - Mapua Institute of Technology

Introduction to Total Quality Management - Mapua Institute of Technology

Wireless Networking – Mapua Institute of Technology

Introduction to Sixth Sigma Quality Management - Mapua Institute of Technology

Solaris 8 Operating Environment for Systems Administrator - Mapua Institute of Technology

JAVA I - Mapua Institute of Technology

Fundamentals of UNIX - Mapua Institute of Technology

UNIX Systems Administration - Mapua Institute of Technology

CNAP (Cisco Networking Academy Program) CCNA 1-4 - Mapua Institute of Technology

TECHNICAL SKILLS:

BIG IP F5 Load Balancer (Globe Telecom)

BIND 9.2.2 DNS. (Ericsson Multi-Vendor Project)

DNS Cache (Ericsson Multi-Vendor Project)

Ericsson SGSN-MME 2012B (JUNIPER)

Ericsson GGSN-MPG 2012B (JunOS) (Ericsson Multi-Vendor Project) (JUNIPER)

Ericsson SASN 2012B

Ericsson SAPC 2012A

CheckPoint Devices

Proxy Servers

Nortel Contectivity

Cisco 7613/12410/7609 Routers

Cisco ITP (IP Transfer Point/SS7oIP)

Cisco FWSM (Firewall Service Module)

Ericsson MIEP WAP Gateway 2.0, 3.0

Nordic EMG (Enterprise Mediation Gateway)

Ericsson OLG (Online Mediation Gateway)

Cisco/Extreme Summit routers and switches

Logica CMG MMSC 2.1/2.2/3.0

Cacti Monitoring Tool

LCMG SMSC (OpenVMS)

Nokia Terminal Management System (NTMS)

Nokia i-Gateway Mobile Location Center (iGMLC)

Mobile Switching Center (MSCi)

Mobile Switching Center Server (MSS)

Media Gateway (MGW)

Home Location Register (HLRi)

PROFESSIONAL EXPERIENCE

Company: T-Systems

Role: Senior Network Engineer

Duration: May 2015 - present

Project: 28th SEA GAMES and WTA Championship Project

Skills:

Cisco IOS

Cisco Firewall

WIFI Technology

IPTV Technology

Operations and Maintenance:

Full proficiency and understanding of networking technologies, such as VLANs, IP addressing, routing and switching, and network troubleshooting skill on both Window DOS and Cisco IOS.

Proficient with Cisco firewalls, and WIFI technologies

Proficient and familiar with all Sports Hub network infrastructure and topologies, as well as the physical location of all ICT rooms.

Customer focused and able to communicate well with customers & internal staff.

Provide support firewall/security related issues

Provide support on routing/switching issues throughout the network including core/distribution/access layers

Provide support on WIFI (APs and WLC) related issue

Confident to make configuration changes if and when required.

Company: Ericsson Brunei

Role: Integration Engineer / Network Support

Duration: August 2013 – January 31, 2014

Skills:

GGSN-MPG (JUNIPER)

SGSN-MME (JUNIPER)

CheckPoint

CoreSwitch

Bind DNS

DNS Cache

Integration, Validation and Implementing Changes:

Performs network integration / configuration / troubleshooting on GGSN MkVIII for DST (Data Stream Technology) LTE Readiness Project and implements Hardware Quality Test / Acceptance Test / Internal Connectivity Test for Multi-Vendor Implementation testing.

Performs network integration / configuration / troubleshooting on SGSN-MME 2012B for DST (Data Stream Technology) LTE Readiness Project and implements Hardware Quality Test / Acceptance Test / Internal Connectivity Test for Multi-Vendor Implementation testing.

Activate features for SGSN-MME 2012B, APN Extension Resolution request from customer.

Creates and reviews DITP / Procedure / Command File project-related activities and implements on GGSN-MPG and SGSN-MME node and perform pre and post activity health check and KPI report.

Operations and Maintenance:

Provides technical service and support to new and existing customer networks or internal Ericsson test plants - telecom and datacom.

Identifying and analyzing problems and needs of existing telecommunications systems, such as interference, intelligibility and clarity, to determine the most appropriate means of reducing, eliminating and avoiding current and future problems and improve communications

Monitoring telecommunications systems to assess need for updates, upgrades, enhancements, preventive maintenance and new systems

Configures and integrates different nodes and solutions in new and live customer networks.

Interface with the customer and by handling Customer Service Request (CSR), 24h/7days support you will provide high quality support to satisfy customer.

Company: Ericsson Indonesia

Role: Service Engineer, IPN Support

Duration: March 2012 – March 2013

Skills:

GGSN-MPG (JUNIPER)

SGSN-MME (JUNIPER)

SASN 2012B (UNIX)

SAPC 2012 (UNIX; LDAP)

Operations and Maintenance:

Provides technical service and support to new and existing customer networks or internal Ericsson test plants - telecom and datacom.

Identifying and analyzing problems and needs of existing telecommunications systems, such as interference, intelligibility and clarity, to determine the most appropriate means of reducing, eliminating and avoiding current and future problems and improve communications

Monitoring telecommunications systems to assess need for updates, upgrades, enhancements, preventive maintenance and new systems

Configures and integrates different nodes and solutions in new and live customer networks.

Interface with the customer and by handling Customer Service Request (CSR), 24h/7days support you will provide high quality support to satisfy customer.

Company: Ericsson Japan

Role: SASN Consultant

Duration: May 2011 – February 2012

Skills:

SASN 2010B (UNIX)

WireShark (TCP)

Integration, Validation and Implementing Changes:

OS installation for new SASN nodes

Integration of new SASN nodes

SASN Software update every Software Release

Acceptance Testing for SASN (new Software and Hardware) and Cluster Switches

Carefully validating correct content-type by SACC capturing for SACC calculation.

Checking connectivity between SASN nodes and SAPC via Diameter Protocol.

Check Gx statistics between SASN nodes and SAPC node.

Perform Test Cases for SAPC (Content-Filtering, QoS and local ToD, Configuration and PDP context handling, Interfaces, SACC verification, Error cases, etc.)

Company: GLOBE TELECOM, Mandaluyong City, Philippines

Role: GPRS/VAS Network Operations and Maintenance Engineer in Network Operations Division

Duration: September 2007 – May 2011

Skills:

CMG SMSC (Open VMS)

CMG MMSC (UNIX)

CheckPoint devices

GGSN / SGSN (JUNIPER)

DNS Bind

BGW (GRX; Proxy)

ITP

Mainly support tasks for the in-service performance of GPRS, GPRS IP Backbone and VAS Elements. Working as a team leader for integration, configuration, implementing changes and finding faults in the network with primarily 5 Dual Access Nodes SGSNs (G/W), 3 GGSNs, 2 firewalls and 1 Core router. Strong understanding of interconnections and call flows are essentials.

Integration, Validation and Implementing Changes:

Handles definition/configuration of Access Point Name (APN), network interfaces, policies, firewall filters, VPN definition on GGSNs.

Implements Zone definition and APN definition at DNS, validates internal and external query of APN.

Performs routing using OSPF, BGP and static and implementing access-lists and NAT/PAT translations at 7613 Router/FWSM for accessibility and security in GPRS network.

Integrates in SGSN new RNC using IP over ATM for user plane and SS7 over ATM for control plane links, BSC using E1s as physical media, NSVC and FR technology for upper layers and HLR with signaling linksets aggregated in TMSCs for efficiency and manageability of traffic.

Implements LAC/RAC updates and modifications in SGSN due to rehoming or LAC split.

Performs IMSI definition in SGSN for new number series and RP’s IMSIs to enable roaming in our PLMN.

Prepare and implements procedure for BSC and RNC Rehoming, for traffic offload and balance in SGSNs.

Recommends and implements Iu-U and Gb interface Link Upgrades in SGSN.

Create PM jobs for KPI monitoring and set thresholds for the normal success and failure rates

Performs configuration of Push Initiators on Ericsson MIEP (wap gateway) and routing and configuration of service on load balancer (BIG IP F5)

Performs configuration of control-server, new prepaid number series and additional URLs in Ericsson SASN.

Definition and/or modification of parameters of GPRS/MMS roaming partners in firewall, MMSC and GPRS nodes.

Definition of Large Accounts/Access Codes for VAS Content Provider in MMSC and SMSC

Assists with vendor/ELS in performing software upgrades and installation of error correction patches on SGSNs, MMSC, SMSC, Cisco ITPs, iGMLC and NTMS. Documents release docs for each CP installed.

Implemented new number series analysis and SPC definition and GT Analysis for newly integrated SS7 elements in the network in SMSCs, NTMS and iGMLC

Creation and Modification of Linksets and Routes on CISCO ITPs.

Performs routing of SMS traffic in MSC and MSS.

Fault Management:

Provides troubleshooting for GPRS network and service related concerns and issues for corporate accounts with VPN thru GPRS connection, VIP complaints such as blackberry, subscriber perceived problems, roaming issues with GRX and RPs. Event recordings and checking of session and mobility logs are needed

Responsible for fault and alarm handling in GPRS and VAS elements handled, software or hardware related. Performs troubleshooting and diagnosing of problem through logs.

Performs daily health checks.

Checks parameter before implementation like retry timers, Point-to-point IP addresses and subnet mask for the ATM VCs, SCR/PCR, board/port assignment, bandwidth limitation, DLCI assignments, NSVC to NSEI matching, firewall potential conflicts, and routes and route maps in routers. Evaluates impact and services affected.

Coordinates with Corporate technical supports in connectivity issues with their VPN, performs packet tracing with Ethereal/Wireshark packet Analyzer in Core router as needed and provides findings and recommendations.

Coordinates with VAS Content Providers in troubleshooting IP connection issues with SMSC and WAP Gateway. Performs TCP packet tracing to analyze conversation with the application server.

System Administration:

OS-Level Administration of different elements using UNIX, Open VMS, Windows Server 2000/2003, Red Hat Linux, SunOS, Cisco IOS and JunOS

Ensures and performs GSN SW backups and restoration, testload is performed for integrity of backup.

Raises necessary CSR to vendor’s helpdesk for support of initial findings on the problem.

Documents standard procedures of daily routines and backup of network elements as part of system maintenance.

Participates in process improvements, such as creating scripts in Perl/shell for monitoring and ease of detection of abnormalities in the network.

Company: GLOBE TELECOM, Mandaluyong City, Philippines

Role: Network Switch Platform / Switch Processes and Delivery

Duration: January 2007 – September 2007

Operates and maintains both NOKIA DX 200 SERIES and IPA2800 switches for Mobile Communications.

Generally responsible for the O&M of TMSC/MSC/HLR – both Fault Management (as O&M Engineer) and Change Management (as Implementation Engineer).

Integration, Validation and Implementing Changes:

Performs M13 Software Upgrade of MSC.

Performs CN (Change Note) and CD (Change Delivery) Loading for the purpose of software upgrading/corrections in Core NEs such as TMSCs, MSCs, MSSs and MGWs.

Performs integrations such as MSC – MSC, MSC – HLR, MSC – BSC for 2G networks and integrations MSS – MGW, MSS – MSS, MGW – RNC, and MGW – BSC for Rel 4 3G implementations.

Performs BSC/ RNC rehomings in case of outage due to parent MSC/MSS. Ensure stability of newly created MSC – BSC and/or MSS/MGW – RNC connections.

Also performs integrations of Core network going to other switches i.e. Toll switches, IGF facilities, etc.

Also responsible for Daily changes in the system as part of Operations of the Mobile operator which includes:

oLoading of New Announcements as to what the operator wants.

oDefinition of new Number series in all Core NEs as part of increase in service.

oImplements definition/activation/deactivation of Signaling links, signaling routes, SCCP and it subsystem, Result Record and Global title, Routes, Circuits and CGRs and other parameters needed for the integration of new servers and/or switches/interconnect. (node to node)

oDefine and modify new charging rates both for local and international/maritime rates.

oPerforms migrations of interconnection as part of task given by Carrier relations group.

oPerforms CCSU, BSU balancing to optimize loadings in different computer units.

Fault Management:

Responsible for the O&M and Fault Management of Alarms of TMSCi, MSCi, HLRi, MSS and MGWs.

Performs second line troubleshooting of active alarms and restoration of system faults (Hardware and Software in nature).

Perform daily task for operation and maintenance of NSS elements across Globe wireless networks thru NMS 2000/5000. These include 15 High Capacity HLRi, 22 MSCi, 6 Transit MSCi for Nokia DX200.

Perform MML (Man-Machine Language) back up, fallback copying, database copying, CDR (Charging files) back-up, test calls & troubleshooting to ensure system availability.

Performs checking/investigation of forwarded complaints (Helpdesk Cases) regarding billing problems, network problems and incident reports through validation using extracted CDRs and parameters checking.

Administration of TMSC/MSC/HLR, Cellular Radio Network, Common Channel Signaling System (CCS7), Network Subsystems, Inter-working function, Signaling Network, Digit Analysis, Charging System, and subscriber database.

Analyze and troubleshoot TMSC, MSC, & HLR performance.

Performs Compatibility and Confidence testing with other carrier.

Performs detailed test call to ensure proper termination, routing and quality of voice calls are achieved.

Perform E1 to E1 checking and Call Through testing with newly integrated BSCs and interconnection with other POIs.

Troubleshooting of alarm occurrences and analyzing the cause of the alarm. Raising of an ASMS to vendor, if ever fault or its cause needs more study and coordination with other interconnecting groups that affects the systems’ functionality.

Alarms analysis, escalation, troubleshooting & preventing fault propagation and ensure NSS availability beyond 99%. Auditing in the areas of Charging, Signaling, and Routing.

Attend to customer complaints and if needed, technical modifications are done to restore the service.

Analyze MSC performance using Nokia Network Data Warehouse and Nokia NetAct Reporter, Traffica, NMS 2000 and NMS 5000, and Signaling Advisor as primary tools.

Collects MSC related traffic data and forecast MSC/NSS growth and capacity requirements. MSC Data Collection and Performance Analysis Monitor effectively on a day-to-day basis.

System Administration:

Conducted in-house training with regards to switch and signaling to fellow-employees and newly-hired and to Plant visitors.

Responsible for dissemination of network information to the whole team so that all members are knowledgeable of all network projects and functions.

Documentation and Data Integrity Management. Updated necessary documentation weekly and incident reports for investigation.

Ensured correct implementation of change implemented on switches and HLRs.

Company: GLOBE TELECOM, Mandaluyong City, Philippines

Role: Systems Analysts / Information Systems Group

Duration: April 2005 – January 2007

Skills:

UNIX Scripting

Operations and Maintenance:

To ensure that the performance obligations of in-house computing systems are met. This includes gathering and analyzing data in support of systems management, maintenance, and performance.

Responsible for generating and compiling reports based on their findings, complete with probable causes and possible solutions to systems issues.

Apply proven communication, analytical and problem-solving skills to help identify, communicate and resolve malfunctions and make the appropriate recommendations in order to maximize the benefit of IT systems investments.

Demonstrates continuous effort to improve operations, decrease turnaround times, streamline work processes, and work cooperatively

Designs systems, procedures, forms, and work measurements to effect methods improvement, work simplification, improvement of manual processing, or for adaption to computer processing.

PERSONAL BACKGROUND

Born on 11th of November year 1985, a Filipino citizen, single and a Catholic. Above average communication skills, fluent in English and Filipino. Professional in attitude, self-starter, fast-learner, analytical, result-oriented and hardworking. Can work under pressure with minimal supervision. Works well with other individuals.

* Reference available upon request

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