Overview
Work History
Timeline
Generic

David Matthews

Pensacola,FL

Overview

28
28
years of professional experience

Work History

Roaming Operations and Technical Service Manager

Liberty Latin America
01.2023 - Current
  • Managed technical operations for the Roaming business – both inbound and outbound
  • Ensured accurate & timely execution of all IREG Testing via local and vendor resources and executed all inbound and outbound TADIG validation issue TCCs
  • Signed all CLLs and coordinated the launch of services for all LLA affiliates
  • Coordinated all inbound and outbound commercial launches with local engineering and billing teams along with TAP files creation vendor
  • Managed incident resolution for roaming-related issues from partners and LLA customers
  • Maintained updated LLA Group GSMA IR21 documents and coverage maps
  • Complied with SOX processes for Syniverse Accesses reporting
  • Collaborated with various teams to support network implementation, upgrades, and ensure business continuity of international roaming services
  • Implemented VoLTE Roaming service, new IPX Link, Syniverse/AT&T Evolved Mobility, T-Mobile VSS service, MSC Pooling, vHLR, vHSS, vMME, vSGSN, vSTP, vSMSC, and New DSC for all LLA Markets

Roaming Operations and Technical Service Manager

Cable and Wireless Communications
01.2011 - 01.2023
  • Implemented strategic roll-out plans for international roaming agreements
  • Negotiated and maintained International Roaming Agreements (IRA’s) per GSMA guidelines
  • Managed and maintained CWC’s roaming Inter-Operator Tariffs and retail rates
  • Analyzed inbound and outbound roaming traffic volumes and steering of roaming traffic
  • Coordinated daily monitoring of roaming quality of service (QoS)
  • Supported the implementation of preferred and/or discount roaming partner agreements
  • Coordinated all commercial launches with engineering and billing teams
  • Maintained CWC’s IR21s, Opdata, and IOT documents
  • Managed migrations and implementations for SS7 signaling, NRTRDE, Roaming Hubs, LTE Roaming services, HLR, SMSC, SGSN, MSC, DNS servers, and more
  • Worked on the acquisition transition for AT&T PR/USVI and Telefonica Costa Rica

International Roaming & Interconnect Manager

CCT Global Communication
01.2006 - 01.2011
  • Developed and executed the company’s GSM/CDMA roaming strategy
  • Maintained company information on GSM Info center and CDMA Wikki
  • Negotiated GSM and CDMA Roaming Agreements
  • Managed Test SIMs, CDMA Test phones, and execution of IREG and TADIG Testing
  • Scheduled and executed commercial launches
  • Built and maintained relationships with roaming partners and service providers
  • Managed interconnect and termination rates, and reviewed interconnect agreements

Roaming Assistant

CCT Global Communication
01.2004 - 01.2006
  • Assisted the Roaming Manager with daily tasks, preparing roaming documents, managing Test SIM cards, and completing IREG and TADIG testing
  • Supported the launch of GSM and CDMA roaming services

Sales Representative

CCT Global Communication
01.2000 - 01.2004

Customer Service / Operator

CCT Global Communication
01.1997 - 01.2000

Timeline

Roaming Operations and Technical Service Manager

Liberty Latin America
01.2023 - Current

Roaming Operations and Technical Service Manager

Cable and Wireless Communications
01.2011 - 01.2023

International Roaming & Interconnect Manager

CCT Global Communication
01.2006 - 01.2011

Roaming Assistant

CCT Global Communication
01.2004 - 01.2006

Sales Representative

CCT Global Communication
01.2000 - 01.2004

Customer Service / Operator

CCT Global Communication
01.1997 - 01.2000

Similar Profiles

CREATE PROFILE
David Matthews