Regis S. Santos Email & Phone Number

Sao Paulo, Brazil

Development of Corporate and Government Network Projects: Conducted information gathering, strategic planning, and execution of large-scale network projects, with a focus on Data Center migrations, implementation of mission-critical topologies, and high-availability infrastructures tailored to both private and public/government sectors.Network Optimization and Segmentation: Designed IP addressing plans, network restructuring, and segmentation to maximize efficiency and security. Applied best practices and ensured compliance with specific requirements for corporate and governmental infrastructure.Specialization in Cisco Products and Solutions: Hands-on expertise with Cisco Nexus, Cisco ACI, Cisco SD-WAN, Nexus Dashboard, Catalyst 8000 Series, and Cisco NCS-540, including configuration, integration, and optimization of these devices and technologies in critical network environments and high-demand settings.

Sao Paulo, Brazil

Activities performed;Leadership of network, security and telecommunications teams, supervising the implementation and management of corporate infrastructures, including Firewalls, Switches, Routers and Balancers.Data Center Management (Active, Backup and DR), ensuring service continuity and high availability.Development of network projects: Planning, preparation and execution of robust network projects, including Data Center migration and implementation of high availability topologies.Management of critical environments to ensure continuous and secure network services, reviewing and validating architectures and integrating new solutions into production.Network optimization and segmentation: Preparation of IP addressing plans and restructuring for efficiency and security, adapted to corporate and government requirements.DNS and connectivity administration: Configuration and maintenance of public DNS with Citrix NetScaler and CloudFlare, in addition to management of L2L, MPLS, Internet and ExpressRoute (Azure) links.Incident analysis and resolution: Preparation of root cause reports and action with Jira (ITIL) to track and document incidents in mission-critical environments.Participation in war rooms and crisis management, evaluating and implementing short- and long-term solutions for operational stability.Evaluation and recommendation of solutions and suppliers: Research and strategic choice to reduce infrastructure costs and optimize services.Review of support contracts such as Smartnet (Cisco) and FortiCare. Support in defining investments (Capex and Opex) for new network, security and telecommunications projects.

Sao Paulo, Brazil

Main responsibilities and achievements:Implementation and management of network devices: Firewalls, Switches, Routers and Balancers to maintain the integrity and security of the client's network environment.Support of critical network environments: Continuous support to ensure high availability and efficiency of client network services.Implementation and periodic testing of DR (Disaster Recovery): Planning and execution of recovery routines to ensure continuity of services in failure scenarios.Development of network projects: Planning, preparation and implementation of robust and scalable network projects.Data Center Migration: Conducting network projects for efficient Data Center transitions, focusing on operational continuity and security.Network segmentation and restructuring: Preparation of IP addressing plans and redesign of topologies to optimize efficiency and security.Integration with production environments: Collaboration with the architecture team to review and validate new architectures.Connectivity link management: Administration of L2L, MPLS, Internet and Q-in-Q links in the Data Centers of SP and RJ.Critical incident and crisis management: Participation in war rooms and root cause analysis using Remedy (ITIL) for rapid resolution and documentation of incidents.Infrastructure cost optimization: Implementation of strategies to reduce costs without compromising the quality of network services.Key technologies and equipment: Experience with routing and switching (HSRP, VRRP, OSPF, VSS, VPC, Stacking), as well as Cisco 7513, 7200 equipment, Switches 6509-V, 4510-R, and Cisco ACE and F5 balancers.

Sao Paulo, Brazil

Main activities and achievements:Continuous management of Telefônica's corporate network infrastructure, ensuring the stability and security of services.Integration of networks after the merger of Telefônica and Vivo: Participation in strategic projects to unite the companies' networks, promoting continuity and optimization of resources.Deployment of new network devices: Implementation of Routers, Switches, Firewalls and Access Points (APs) to support network expansion and modernization.Corrective and preventive maintenance: Performing maintenance actions on network devices to ensure high availability and performance.Restructuring projects in corporate and central buildings: Responsible for the infrastructure of points of presence (POP) and central offices to serve corporate and residential subscribers.Technological update of core equipment: Execution of refresh projects to replace obsolete routers and switches, ensuring continuous performance and support in the main business units.Implementation of high availability (HA): Design and implementation of high availability solutions in corporate buildings to support critical operations.Technologies used: Solid knowledge in routing and switching (HSRP, VRRP, OSPF), security (ASMD) with Cisco ASA/PIX Firewalls and FWSM firewall modules in 6500 switches, as well as extensive experience with Cisco 7513, 7200 and ASR routers, and 6509-V switches.

Sao Paulo, Brazil

• Implementation of the network infrastructure of 2 new Poupa Tempo (Government of the State of São Paulo), Taubaté and Suzano, with L2, L3 switches, routers and Access Point, all equipment manufactured by Cisco.• Resident at the Contax client, performing post-sale implementation of network infrastructure projects, implementation of new client operations and migration of operations between Contax units.• Implementation of new Contax Contact Center sites (Data Centers at Lapa and Alegria Units) to expand the services offered to clients.• Technologies used: Cisco VTP, Dynamic Routing (OSPF), VRF, HSRP, VRRP, ASA Firewall with Site-to-Site VPN.

Sao Paulo, Brazil

Main activities and achievements:Technical support to field engineers: Assistance in troubleshooting, maintenance and installation of CPEs (Customer Routers) for the operators Embratel, Telefônica and Intelig.Management of critical cases with the manufacturer (Cisco TAC): Opening and monitoring complex incidents with Cisco, involving unknown problems and contributing to the resolution with the manufacturer.Working as a Field Technician (Field Engineer): Implementation of new switches and routers for Telecom customers and for CPM Braxis itself, including initial participation in the project to activate the Bradesco Bank Data Center in Cidade de Deus.Technological update project for Banco do Brasil: Updating routers in branches, replacing old equipment with new Cisco solutions with VoIP technology and PVDM modules for voice over IP.Technologies and protocols used: Practical experience with Spanning Tree, Frame-Relay, Cisco VTP, dynamic routing (OSPF, EIGRP, RIP), virtual routing tables (VRF) and high availability protocols (HSRP, VRRP and GLBP).

Sao Paulo, Brazil

Main projects:WAN Network Migration Project for the largest banking institution of the Brazilian government: Worked on the migration of WAN network management to partner operators, with the installation of Cisco 1700 series routers with VoIP in hundreds of branches and self-service points distributed nationwide.Data Center Project for a Leading Airline Company in the Industry: Participated in an outsourcing project to migrate the company's Data Center, in addition to the transition of connectivity of sites that used ADSL to a managed VPN/MPLS infrastructure.Network Infrastructure Update for a Multinational Company in the Cosmetics Sector: Responsible for updating the LAN network, replacing previous technology switches with Cisco Catalyst 2950 and 3524 to ensure greater efficiency and modernization of the IT infrastructure.

Sao Paulo, Brazil

1st level analyst providing installation and repair support to Telefônica (VIVO) customers for the Speedy product, residential and corporate internet.

Redes De Computadores, Tecnologia Da Informação

Tecnico Em Eletrônica - Crea, Electrical, Electronics And Communications Engineering