Diego Ozuna Email & Phone Number

Dublin, County Dublin, Ireland

County Dublin, Ireland

Asunción, Paraguay

- Gather and collate network requirements by working with clients and colleagues.- Design secure and scalable networks.- Assist in sizing effort for the network part of projects.- Assist in pricing for the network part of projects.- Install secure and scalable network devices.- Document all network set-ups.- Liaise with support teams, working together to resolve internal network users issues.- Work with clients during all stages of projects.- Designing and implementing customers’ network infrastructure.- Troubleshooting and solving networking issues - TCP/IP, DNS, DHCP, Layer 2/3 network devices- Experience working with routers Fortinet, Ubiquiti, Cisco and Alcatel. - Experience working with several brands of switches like 3COM, Ubiquiti, Netgear, Juniper, Alcatel, TPlink.- TCP/IP, Routing, Switching, Wireless, VPNs – GRE / IPSec / SSL / MPLS, VoIP, IPS, Firewalling, LAN networks, MAN networks, Securing VLANs, Remote Access Solution.

Nuestra Señora De La Asunción, Ed. Nuestra Señora, 5To Piso

- Administration of the project to implement a Carrier-Class VoIP traffic management platform (Voxcentre) for the international communications department of the National Communications Company (COPACO S.A.).- Development of migration strategy from the previous to the current International traffic management platform.- Performing data collection for the development of different system customizations.- Responsible for the creation, development and implementation of the training program of the VoxCentre system.- Leading negotiations with customers and making commitments.- Documentation of meetings, approval of new features and commitments assumed by each party involved in the project.- Networking administration. Switches HP 5500-24G.- Servers administration. Servers Proliant DL380 Gen 9. Cluster with VMware. Virtual Machines SO Linux 6.5. Databases MySQL.

Asunción, Paraguay

- Detailed design, configuration, analysis and troubleshooting of network-based infrastructure and solutions.- Troubleshooting the MAN network of intelligent traffic lights in the city of Asunción, Paraguay. Service provided to the municipality of Asunción.- Network Technical Support for the Intelligent Traffic Light Monitoring Center- Design and configuration of the data network of the building of the intelligence department of the national police of Paraguay. - Design and configuration of stacking switches.- Design, installation and configuration of the building network of the city of Encarnación of the 911 national emergency call system.- Documentation of network design and engineering.- TCP IP, VPN tunnels GRE/IPSEC, VLANs and QoS VLANs, IDS and IPS, IP planning, filters, access lists, Firewalling, DNS, nat, IP and ports forwarding, network integration, network security and best practices, wireless.- Customer service, operational support, interpersonal skills.- ALCATEL Specialist.- Certification ACFE OmniSwitch LAN R6/R7/R8

Paraguay

- Assisting over 100 users with an account, computer, and printer issues via troubleshooting or submission of remedy tickets.- Administering the whole IT infrastructure – switches, firewalls, routers, and servers. Cisco equipment located in Asunción - Paraguay, and Sao Paulo - Brazil (Branch office): GRE tunnels, VLANs, IP planning, prefix lists, filters, access lists, Firewalling.- Production Linux servers administration: DNS, mail servers, nat, iptables, dansguardian, SIP Proxys, IVRs, Ip Pbx, vpn.- Virtual machines administration (KVM Linux)- Audiocodes Gateways administration: E1/SIP, Addpacs FXS/SIP, gradstream FXO/SIP.- Support to the Network Operation Center (NOC)

Paraguay

- Implementations of solutions based in SIP protocol: IP PBX, VoIP Gateways, SIP Proxies, Session Border Controllers, Media Gateways, Signalling Gateways. - Softswitches: Cisco, Lucent, AudioCodes, Digium, Grandstream.- Traffic engineering calculations- SIP test performance (sipp tool)- Installation and configuration of gateways GSM/SIP SIP/E1 FXS,FXO/SIP and IP phones.- Desing and implementation of IVRs (Elastix).- Projects design – Technical specifications.- SIP signalling analysis and troubleshooting between equipment of costumers and suppliers.- Media Proxy configuration and implementation (rtpproxy).- SIP Proxy kamailio administration.- Implementation of solutions based in Asterisk and Freeswitch: Freepbx, Elastix, Freeswitch.- Virtual machines Linux Administration in development environment (KVM).

Paraguay

Profesor ayudante de cátedra de las asignaturas Física y Matemática en el cursillo de ingreso

Electroning Engeneering, Telecommunications, Electronic Engineer

Specialist In Project Design, Business Administration And Management, General

Especialist In University Didactic