• Operation, planning and maintenance of a national IP network (railway and highway networks), with high availability, high bandwidth and high level of security requirements (over 4000 geographically distributed equipments);• Analysis and definition of network security requirements, security events correlation and vulnerability analysis;• Network migration and expansion;• Key Technologies: Cisco, Hirschmann, ALE Omniswitches, Nokia 7705 SAR, OSPF, ISIS, LAN Switching, IP/MPLS, SPB, NAT/PAT, VRRP, VPWS (epipes and cpipes), VPLS, QoS, Forcepoint, Fortinet, Multicast, JDSU;

• Support recruitment activities for the IP area;• Support for pre-sale;• Market analysis and technological trends;• Participation in communities, forums and professional networks;

• Migration of IP/MPLS Enterprise Network and network audit;• Network Administrator for Nokia (7750-SR, 7210 SAS-M, 7210 SAS-R, 7210 SAS-D) and Cisco (7600, 7200 VXR, ASR 1K and ASR 9K) equipments;• 3rd line of support for Enterprise CPE Routers (Cisco and Huawei);• Maintaining a Checkpoint VSX cluster for enterprise customers;• Migration of Enterprise services to the new MBH network (Cisco ASR 9K, 920, 903 and 907);• Certification of the QoS solution for the enterprise network;• Define and test new solutions for Enterprise clients (end-to-end solution);• Key Technologies: IP/MPLS, MP-BGP, IS-IS, DMVPN, RIPv2, Seamless MPLS, VPWS, VPLS, L3 VPN (VPRN), LAN Switching, Speed Test Solutions, JDSU Traffic Generator, TACACS, MC-LAG, Python Programming, QoS, Checkpoint Gaia;

• Project and design of a national IP network with VPN Services to Enterprise Networks and Internet Services;• Project and design of a small international IP network with routers spread over several countries;• Working in a NGN (Next-Generation Network) architecture (Cisco ASR 1000 series, 9000 series, CRS-1, CRS-3 and CRS-X);• Key Technologies: IP/MPLS, BGP, MP-BGP, IS-IS, Inter-AS Models, VPLS, L3 VPN, IPv6, QoS, Cisco Prime, NGN Architecture;

• Participating on the TMN’s project migration to IP/MPLS network;• Operation and maintenance of a national IP/data network;• IPSec VPN customers migration to a new infrastructure;• Key Technologies: Cisco, Enterasys (B, C and N-series), Juniper (JunOS, NetScreen and ERX family), Alcatel 7750 SR, IP/MPLS, MP-BGP, IS-IS, LAN Switching, VRRP, Inter-AS Models, IPSec and GRE Tunnels, VPWS, VPLS, L3 VPN (VPRN), IPv6, QoS;

• Operation and maintenance of two national IP/data network (corporate data network and national railway data network), with high availability, high bandwidth and high level of security requirements (over 2300 geographically distributed equipments);• Networking provisioning through switching, carrier and routing;• Design and implementation of IPv6 in corporate network, Core Routers and interface to end customer;• Key Technologies: Cisco, Nortel, HP, Alcatel, Hirschmann, OSPF, MP-BGP, IPV6, LAN Switching, DNS, DHCP, Carrier Ethernet, IP/MPLS, Radius, NAT/PAT, HSRP, Stonesoft and ASA Firewall, RIPE Database;

• IMS (IP Multimedia Subsystem) Technology;• Implementation of charging and provisioning systems in a test and live environment;