• Serving as support and project delivering for all voice solutions in United Nations Peacekeeping Missions and Secretariat.• Working in a collaborative team with different solutions for voice transport, such as Radio, Satellite, PSTN, Video Conference, Edge, and Core infrastructure.• On the Support level, working as Tier 2/3 for troubleshooting and evaluation to deploy new solutions.• On the Project level, responsible for PoC (Proof of Concept) plans regarding technical and project management process, working closer to the customer's needs. • Maintain and support Cisco ISE for Network Access Control integrating legacy systems and SDN (Software-Defined Network) solutions.• Focal Point in Network Engineering Team for Control and Audit frameworks (ISO20000 & ISO27001).• Experience with MS Project, Microsoft PowerBI and Network Automation.

• Serving as support and project delivering for all voice solutions in United Nations Peacekeeping Missions and Secretariat.• Working in a collaborative team with different solutions for voice transport, such as Radio, Satellite, PSTN, Video Conference, Edge, and Core infrastructure.• On the Support level, working as Tier 2/3 for troubleshooting and evaluation to deploy new solutions.• On the Project level, responsible for PoC (Proof of Concept) plans regarding technical and project management process, working closer to the customer's needs. • Maintain and support Cisco ISE for Network Access Control integrating legacy systems and SDN (Software-Defined Network) solutions.• Focal Point in Network Engineering Team for Control and Audit frameworks (ISO20000 & ISO27001).• Experience with MS Project, Microsoft PowerBI and Network Automation.

• Serving as support for all collaboration infrastructure based at Central Bank of Ireland.• Maintain and support all UC Cisco Collaboration infrastructure (Voice, Video and Telepresence services) based on the best security practices for IT voice/video encrypted communications (TLS, sRTP). • Working with full UC Cisco Collaboration technologies, services and applications such as CUCM, UNITY, IM&P, VCS, Expressway C/E, Jabber, WebEx, TMS, CUBE and LDAP integration.• About 3.000 users are being managed on this scenario locate at 3 different remote sites including remote users – working from home within an infrastructure based on Clustering over WAN model.

• Serving as support for all collaboration infrastructure based at Central Bank of Ireland.• Maintain and support all UC Cisco Collaboration infrastructure (Voice, Video and Telepresence services) based on the best security practices for IT voice/video encrypted communications (TLS, sRTP). • Working with full UC Cisco Collaboration technologies, services and applications such as CUCM, UNITY, IM&P, VCS, Expressway C/E, Jabber, WebEx, TMS, CUBE and LDAP integration.• About 3.000 users are being managed on this scenario locate at 3 different remote sites including remote users – working from home within an infrastructure based on Clustering over WAN model.

• Providing Global Support for Cisco Voice Collaboration solution, such as CME, CUCM, SME, Unified SRST, Voice Gateways, SIP Trunking and CUBE platforms for the global Procter & Gamble (P&G) IT operation and infrastructure.• Responsible to maintain the day-to-day availability, interconnectivity and stability of core telephony services in a global infrastructure within 32 CUCM servers clustered and distributed around the globe consolidating all IP telephony operations and supporting over 20.000 users on this scenario.• From engineering perspective, reviewing and improving the telephony capacity planning, quality and call routing optimization such as Global Dial Plans, TEHO, inter-clusters and PSTN communications.• Member of Voice Engineering Team for improving Core Voice Infrastructure (clusters), handling Incidents and Change Management tasks.• Integrating other vendors to Cisco Unified Border Element (CUBE) and providing communications inter-clusters and interworking between them.

• Focused on the management, adequacy of the telecommunications infrastructure and SLA/OLA of the entire network.• Reporting of activities, projects and operation with Global team (USA / UK).• Elaboration and viability of new projects among PMO Teams.• Development, continuous improvements, and solutions for the telecom infrastructure environment regarding to the WAN, LAN, WLAN, Voice infrastructure and Mobile services.• Management of contracts (RFPs) and assets of telecom services and sites in Brazil (CAPEX/OPEX).• Validation of management information, capacity and availability regarding the telecom network and services.• Elaboration of work instructions, documentation, and procedures for internal and external audits.• Performing configuration changes validation within network environment comprised mostly of Cisco devices, Siemens, Alcatel and among other solutions.

• Advanced troubleshooting and support for technical staff in Service Delivery at EMBRATEL - Brazilian Telecommunication company.• Development of scripts and configuration standardization procedures.• Advanced knowledge in Routing, Switching, Voice, QoS and MPLS networks.• Initiatives to improve processes-based ticket service and SLA metrics.• Responsible as knowledge multiplier providing training to new engineers joining in the technical team.

Responsible for coordinating, developing, monitoring and implementation of projects forthe telecommunications area at Caixa Economica Federal of Brazil (Bank) in theconvergence of voice and data networks;Advanced technical support within the technology sector throughout the country;conducting technical inspections (site survey) in the data area and voice, forimprovements or implementation of new projects in the structures and layouts;Responsible for checking and maintaining the set standards and norms and required bythe client (audit); Responsible for configuration and dimensioning of projects contingencyand management (SNMP) converged networks (voice and data) using solution IPtelephony (Asterisk / SNEP) integrated with conventional telephone system.

Responsible for Engineering and Operations Network Interconnection between the OPC2244 operators (CORE Network) from the Integrated Technical Planning to thedeployment of new circuits, preventive and corrective maintenance on the network datacenter (NOC), NGN Solutions (SBC Session Border Controller, Softswitch - Class 4 andClass 5, UMGs, MG and MGC) among others equipment that involve a CORE Networkstructure; Date assembly Participation Center (NOC), the operator connectsTelecommunications; Logs analysis of accomplishment and alarm CORE equipment,along with problem solving techniques (troubleshooting) routes of switching - ITX, R2D,ISDN, SIGTRAN, ISUP, SIP and WAN connectivity; approval devices and equipment,definition of logical network topologies (CORE, Distribution and Access) development oftechniques and methods standards, manuals and checklists tests.

Planning, installation, configuration, administration and monitoring technologies gearedto voice service banking units; Supervision periods (SLAs) and quality of field staff (FieldService); Knowledge of PABX Alcatel Omni, Siemens HiPath, Leucotron, Asterisk;projects for integration with VoIP; Analysis project, guidance and proposals fordevelopment of standards of care and support to all staff and customer

Configuration, management and monitoring of assets; Surveys technical infrastructure,analysis and monitoring network (LAN and WAN) with high speed data circuit; projectsRouting (OSPF and EIGRP), Access Layers (HDLC, PPP, FR) with contingencyauthentication; VoIP network management, and DHCP servers in virtualizedenvironment; Support the development and improving the operational flow; In theexercise of supervision, coordination of technical staff and project execution.

Field technician; IT Services - Technology Support at Caixa Econômica Federal (Brazilian financial institution, in the form of a public company) working on installation / hardware general maintenance and customization / formatting computers SO(Windows and Linux); Working on Project for structured cabling; Installation and maintenance for Central Telephonic PBXs as well as network devices such as Hubs, Switches and Routers.

Field technician; IT Services - Technology Support at Caixa Econômica Federal (Brazilian financial institution, in the form of a public company) working on installation / hardware general maintenance and customization / formatting computers SO(Windows and Linux); Working on Project for structured cabling; Installation and maintenance for Central Telephonic PBXs as well as network devices such as Hubs, Switches and Routers.