Experience

• 

  Smart communications, inc.

  Apr 2000 - Jan 2005

  Operation & maintenance engineer

  Nokia DX200i GSM (MSC, HLR, GMSC, BSC, S10) • Operation & Maintenance Switch Engineer that is responsible for:o Creating a software tool for switch reports using Visual Basic Language, Reflection Basic Programming, and Excel’s Macro Programming. This resulted in cutting the workload in half of the time.o Troubleshooting issues on alarms, fault and subscriber complaint.o Creating and activating signaling routes, links and circuits between switches.o Digit analysis creation, modification and digits re-routing.o Generating statistic report for Computer and Link loads, Voice circuit performance, VLR counts, and call records. Reports are analyzed and issues recommendation if necessary.o System and CDR back-ups.o Hardware expansion (Signaling unit and E1).o Conducting a comprehensive test call and text to ensure availability of services and to check switch performance.o Wiring/testing E1 between Transcoder-MSC and MSC-MSC at DDF (Digital Distribution frame).Ericsson AXE 10 (Local Exchange Center) • Operation & Maintenance Switch Engineer that is responsible for:o AXE – 10 switch operation, maintenance, and data transcript modification, alarm handling, and troubleshooting.o Coordinating with other local networks engineer regarding interconnections, trunk faults and access difficulties. Show less

• 

  Hutchison 3g

  Apr 2005 - Jun 2005

  Operation and maintenance for nokia core

  * Hutchison 3G UK Limited Nokia DX200i (MSC, HLR, Media Gateways Rel.99, SRRi) • Assigned in NOC for Nokia Core that is responsible for:o Alarm monitoring of SGSN, MSC, MGW, HLR, and SRRi that involves isolation and troubleshooting using NetAct.o Implementing work orders.o System back up checking and manual system back. o Subscriber trace and analysis when there is a complaint.o Performing daily test calls, test text, and video calls to ensure network quality.o Coordinating with other network carrier for interconnection fault isolation. Show less

• 

  Spring telecom

  Jul 2005 - Aug 2005

  Nokia engineer as contractor (nss support)

  * Nokia Singapore Nokia DX200i M12 (MSC, HLR, Media Gateway Rel99) • NSS Support - Assisted Nokia Staff in:o Network monitoring after M11 to M12 upgrade.o Hardware testing on customer lab.o MGW NEMU software upgrade (U1.5 (3.6 – 3.7)).

• 

  Nsn brazil

  Nov 2005 - Feb 2007

  Nsn engineer as contractor (on site support engineer)

  * Nokia Brazil (Claro Project) Nokia DX200 (MSS M12/M13) and IPA2800 (MGW U2) Rel. 4• Assigned as NSS Onsite Support.o Responsible for isolation and troubleshooting of customer complaints.o Nokia Equipment monitoring.o Daily alarm checking/clearing.o Performed Redistribution of E1.o Statistics and data gathering.o MGW hardware expansion.o Performed SW update at MGW and MSC Server.o Planning and implementation of voice mail Integration.o Competence transfer. Show less

• 

  Albany sistemas do brasil ltda

  Apr 2007 - Sept 2008

  Nsn engineer as contractor (implementation engineer)

  * Nokia Siemens Network Ecuador (Porta Project) April 15, 2008 – September 30, 2008 Nokia DX200 (HLR M13 MSS M14) and IPA2800 (MGW U2)• Assigned in Commissioning and Integration team that is responsible for: o Commissioning and Integration of MSSM14.o Migrating CDS traffic to MSC.o MGW hardware expansion.o MGWU4 Integration.o Site acceptance testing.o HLR migration using SMOVER tools.* Nokia Siemens Network Ecuador (Telefonica Project) April 25, 2007 – March 18, 2008 Nokia DX200 (MSS HLR M13) and IPA2800 (MGW U3C) Rel. 4• Assigned in Commissioning and Integration team that is responsible for:o Commissioning and Integration of MGWU3C, HLRi, MGWU3B, MGWU3C and MSS.o BSC Rehoming from one MGW to another MGW.o Upgrading and configuring Switch Unit of MGW.o Migrating PSTN traffic from one MGW to another MGW. Show less

• 

  Avion systems

  Jan 2009 - Jun 2009

  Nsn engineer as contractor (implementation and on-site support engineer)

  * Nokia Siemens Network Canada (Telus Project) Nokia DX200 (MSS M14) and MGW (U4)• Assigned in Commissioning and Integration team that is responsible for:o MSSM14 and MGWU4.1 Commissioning and Integration o Datafill uploading for MSS and MGW.o Troubleshooting calls & link/interconnection related problem using Wireshark tools.o Implementing SIP connection between Nokia MSS and to other vendors.

• 

  Avion system

  Mar 2010 - Feb 2011

  Nsn engineer as contractor (implementation and on site support engineer)

  *Nokia Siemens Network USA (Viaero Project in Colorado) Nokia DX200 (MSS M14 & M13), MGW IPA2800 (U4), SGSN (SG7)• Assigned in Commissioning and Integration team for CS Core that is responsible for:o MSSM14 and MGWU4 commissioning and Integration.o Datafill uploading for MSS and MGW.o Software update.o Troubleshooting calls & link/interconnection related problem using Wireshark tools.o Site Acceptance testing.• Assigned in Commissioning and Integration team for PS Core that is responsible for:o SGSN (SG7) commissioning & integration.o SGSN datafill uploading.o Switch unit configuration.• On-site support Engineer:o Provides procedure and guidelines for customer engineers.o Troubleshoots network, hardware, link interconnection and call related problem.• Integration of HSPA and Flexi BSC:o Flexi BSC datafill uploading.o Troubleshooting hardware and link problems. Show less

• 

  Worldlink us for samsung electronics as contractor

  Apr 2012 - Dec 2016

  3g/4g core & ran deployment and support engineer

  Samsung Telecom Equipment WSS, MGW, MME, S-GW, BSC/BSM, and eNB• Assigned in Core Commissioning and Integration team that is responsible for:o Commissioning and integration of WSS, MGW, MME, SAE-GW.o Performing Call Through Test Plan (CTTP) and Acceptance Test Plan (ATP).o Troubleshooting link connection and call fail issue.o BTS/BSC migration.o Hardware expansion.o Software and Firmware update for newly commissioned equipment.• Assigned in RAN Commissioning and Integration team that is responsible for:o Commissioning and Integration of 4G and 2.5 sites.o Adding a carrier to existing site.o Supporting drive tester for their call related issue.o Troubleshooting MME and eNB interconnection problem.• Assigned in Migration team that is responsible for:o Configuring 4G & 2.5 interface and VLANS on CSR and IPA’s.o Troubleshooting connectivity issues between CSR and eNB.o Creating ENV files and scripts base on site specific. Show less

• 

  Repeat consultants for samsung electronics - contract

  Jan 2017 - Jun 2018

  Ran commissioning & integration engineer

  • Assigned in RAN Commissioning and Integration team that is responsible for:o Commissioning and Integration of 3G/4G (1900 & 800) sites.o Adding a carrier to existing site.o Troubleshooting MME and eNB interconnection problem.

• 

  Tmobile / glotel

  Jun 2018 - Jun 2019

  Engineering customer support (ecs)

  Assigned in ECS (Engineering Customer Support) Team as network technician that is responsible for:Troubleshoot and analyze various customer complaint such as Voice, Signal, internet, Messaging, Voicemail, and L3TV. Responsible for network alarm/fault monitoring and escalation to proper channel.Created a tool that used by the team to automate some task in creating #FIX tickets.

• 

  Worldlink us, for samsung electronics america

  Jun 2019 - Oct 2021

  Senior ran engineer

  o Senior RAN Lead Engineer for commissioning and integrating RAN 5G and CBRS technology on various accounts.

• 

  Samsung electronics america

  Aug 2021 - now

  • Network System Technical Support

    Aug 2021 - now

  • Network System Technical Support

    Aug 2021 - now