Romel Del Rosario
Hanover,MD
Summary
Telecommunications professional with over 20 years of progressive experience in wireless network operations, integration, testing, and maintenance. Extensive expertise in Ericsson LTE and 5G platform integration, commissioning, and troubleshooting, with strong knowledge of RAN operations, optimization, and network maintenance. Proven ability to support complex deployment projects, ensure network performance and reliability, and collaborate effectively with cross-functional engineering and operations teams. Skilled in wireless technologies, system validation, fault analysis, and technical support within fast-paced telecommunications environments.
Overview
33
33
years of professional experience
Work History
Senior Switch Technician
T-Mobile USA
Beltsville, MD
01.2014 - 05.2026
- Delivered integration support to enhance 5G and LTE network deployment and upgrade initiatives for standard and non-standard configurations.
- Facilitated site reconfiguration of SISO 2x2 and 4x4 MIMO configurations to enhance radio performance.
- Executed integration of LTE and 5G sectors and carriers enhance network performance.
- Facilitated 10G network home and transport migrations to support strategic network expansion and optimization efforts.
- Maintained and repaired network switches, ensuring optimal performance and reliability.
- Diagnosed technical issues, implementing effective solutions to minimize downtime.
- Leveraged expertise in Ericsson Network Manager (ENM) and OSS platform for comprehensive network monitoring and configuration management.
- Expertly managed batch execution scripting and configuration management within AMOS and CLI environments.
Switch Technician
Randstad Engineering
Ontario, CA
08.2013 - 12.2013
- Delivered GSM, UMTS, and LTE support for modernization project initiatives.
- Managed war room bridge operations and escalated critical matters to maintain project momentum.
- Supported field engineers in resolving node B/BTS-related technical issues.
- Executed port troubleshooting on ALU 7705 and CSR routers to enhance network performance.
- Executed digital cross-connects on Tellabs 5500 system to enhance network connectivity.
- Developed scripts for GSM technology hardware data and cellular data parameters.
- Conducted thorough review and removal of obsolete configurations in OSS, BSC, and MSS XML to enhance system efficiency.
Switch Technician
JMAT
Torrance, CA
08.2012 - 06.2013
- Provided technical expertise in GSM, UMTS, and LTE to support comprehensive modernization efforts.
- Managed war room bridge operations and escalated critical matters to maintain project momentum.
- Supported field engineers in resolving node B/BTS-related technical issues.
- Configured troubleshooting ports on ALU 7705 and CSR routers.
- Executed digital cross-connects on Tellabs 5500 system to enhance network connectivity.
- Delivered KPIs and statistics in response to RF requests.
- Developed scripts for GSM technology hardware data and cellular data parameters.
UTRAN Engineer and NIC Engineer
Dataworkforce
Plano, TX
09.2009 - 06.2012
- Executed integration of Ericsson Node B for first and second carriers.
- Executed Ericsson Node B 4th carrier standalone and 3rd carrier DBI solution implementations.
- Supported ETOD T1 and ETM F hardware operations at node level.
- Managed script loading operations, ensuring seamless connectivity between UTRAN technology and GSM neighbor networks.
- Demonstrated expertise in OSS platform FTP and WinSCP applications.
- Executed preparation, review, and implementation of Node B scripts.
- Executed implementation of Node B and RNC scripts to align with AT&T gold standard parameter settings.
- Executed node B re-home projects, ensuring seamless transitions and minimal disruption.
- Delivered RF support during pre-launch phases and site optimization initiatives.
- Managed lock and unlock procedures for site restarts, ensuring seamless support for drive testing activities.
- Executed market launch strategies to successfully bring sites on-air.
- Diagnosed and resolved Node B issues, including alarms, RSSI, SWR, and performance metrics.
- Compiled and delivered ATM reports for RF team analysis.
- Delivered accurate KPIs and statistical data to support RF inquiries.
- Optimized RF parameters for node B and RNC to ensure efficient signal transmission and coverage.
- Diagnosed and resolved RNC node B faults to enhance network performance.
BSS Engineer
Dataworkforce
Irvine, CA
09.2006 - 03.2009
- Perform cell site integrations, re-grooms, re-configurations, and radio adds.
- Data Translation (DT) performs cell sites for 2G technology.
- Create/Augment and implement BTS scripts in support of network growth.
- Create/Augment BTS scripts and define them in the MSC.
- Provide end-to-end support to Field Ops by creating scripts for rebalancing sites from one BSC.
- Perform A-interface (RALT-MAL) augmentation for traffic channel increase.
- Troubleshoot and diagnose route relation for BSC and MSC switches.
- Coordinate and analyze cell data parameters with RF Engineering group.
- Coordinate 911 and Emergency One routing data to DT Translation group.
- Upgrade EDGE/GPRS RBS system.
Switch O&M
Dataworkforce
Santa Fe Springs, CA
12.2004 - 09.2006
- Provide O&M support for T-Mobile G network.
- Perform and implement work orders and attend trouble tickets.
- Handle and maintain MSC, BSC, and BTS for Ericsson platform.
- Perform BSC and MSC lifelines and Backups.
- Utilize tools and applications to use by network such as REACT, REMEDY, HOMER, GRANITE, and more.
- Perform T1, DS3, and OC3 acceptance and testing with LEC/TELCO using T-berd equipment like FST 2200 and FST 2310.
- Perform cross-connects with differing digital transport systems such as Tellabs Titan 5500, Alcatel 631 and Alcatel ATM nodes and also Metro Watch for GUI applications.
- ATM nodes and also Metro Watch for GUI applications.
- Provide assistance in ATM support group for card replacements in Alcatel ATM network or New Bridge.
- Create and implement scripts for Ericsson MSC trunk augmentation adding and deleting.
- Knowledgeable in network switches such as Nortel DMS for circuit augmentations and disconnections.
- Provide support for RF performance and cell site integrity.
- Provide support and assist FOPS or BTS technicians at site for troubleshooting.
- Provide end-to-end support to Field Ops by creating scripts for T1 adds and removals.
RBS Tester and O&M
Dataworkforce
Oklahoma City, OK
04.2003 - 12.2004
- Perform cell site integrations, hand adds, re-grooming, and other BTS related.
- Install and integrate Multi with True Position equipment.
- Perform O&M support for Ericsson BTS such as RBS 2101, RBS 2102, RBS 2106, and RBS 2206.
- Perform T1 testing for new build sites.
- Provide RF support for all related performance and quality issues such as drop calls and one-way audio.
Switch Tester
Dataworkforce
Plano, TX
04.2001 - 03.2003
- Perform testing and commissioning new build switches with BYB 202 and BYB 501 hardware.
- Involved in hardware testing of new AXB 10 switches with APG 40 processor.
- Involved in expansion, testing, and commissioning of AXE 16 switches with APZ 21211, APZ 2130 with IOG 11 and 20 Processor.
- Provide switch support for integrations for new cell sites.
- Review DTs and make appropriate corrections if necessary.
- Prepare testing and completion of documents for proper handover to the customer.
Senior Switch Technician
Smart Communications Inc. - Philippines
09.1996 - 03.2000
- Analyzed and responded to alarms from the switch, facilitating prompt issue resolution and system performance.
- Monitored and evaluated subscriber and trunk lines through systematic testing protocols.
- Managed end-to-end processing of service orders, enhancing subscriber data activation efficiency.
- Implemented system recovery procedures and initiated restarts to ensure optimal performance.
- Executed b-number processes and coordinated data exchanges to implement necessary modifications.
- Analyzed and addressed trouble tickets, facilitating effective troubleshooting and restoration of services.
- Performed preventive maintenance tasks according to established schedules to minimize downtime and extend equipment lifespan.
Senior Switch Technician
Digital Telecommunications - Philippines
10.1993 - 09.1996
- Conducted regular assessments of alarm statuses and maintained accurate records of alarm data.
- Analyzed and rectified technical faults in hardware and software to maintain operational efficiency.
- Performed data modifications and applied software patches to enhance system functionality.
- Managed the backup process for system and charging data files, safeguarding essential information against loss.
- Managed subscriber service order processing to enhance customer satisfaction and operational efficiency.
- Directed subscriber administration activities, maintaining accurate records and facilitating seamless service delivery.
Education
Electronics Technology
Central Luzon College of Science And Technology
Olongapo City, Philippines04-1991
Skills
Proficient in Ericsson OSS management
Proficient in Ericsson cENM
5G network integration
LTE network integration
Command line interface proficiency
Proficient in AMOS
Auto Provisioning
Accomplishments
- Led integrated Cell on Wheels (COW) deployments for special events, including tournaments, inaugurations, and state fairs, ensuring seamless high-capacity network coverage and operational readiness.
- Implemented Auction 108 5G NR n41 deployments to enhance mid-band spectrum capacity and improve high-speed wireless coverage performance.
- Executed upgrades across 100 sites to deploy 4th-sector configurations utilizing AIR32 radios, increasing network capacity and user experience.
- Successfully managed GSM decommissioning activities across 1,200+ sites as part of legacy network modernization initiatives.
- Directed L19 second-carrier decommissioning across 1,600+ sites, optimizing spectrum utilization and reducing operational overhead.
- Integrated N41 second-carrier deployments across 1,000+ sites to expand 5G capacity and improve overall network throughput.
- Managed Cradlepoint backhaul configurations and deployments for secure IPsec integration to extend network coverage.
Timeline
Senior Switch Technician
T-Mobile USA
01.2014 - 05.2026
Switch Technician
Randstad Engineering
08.2013 - 12.2013
Switch Technician
JMAT
08.2012 - 06.2013
UTRAN Engineer and NIC Engineer
Dataworkforce
09.2009 - 06.2012
BSS Engineer
Dataworkforce
09.2006 - 03.2009
Switch O&M
Dataworkforce
12.2004 - 09.2006
RBS Tester and O&M
Dataworkforce
04.2003 - 12.2004
Switch Tester
Dataworkforce
04.2001 - 03.2003
Senior Switch Technician
Smart Communications Inc. - Philippines
09.1996 - 03.2000
Senior Switch Technician
Digital Telecommunications - Philippines
10.1993 - 09.1996
Electronics Technology
Central Luzon College of Science And Technology