Freddy FREIRE
Network Administrator
Kent,WA
Summary
Professional in computer networks with several years of experience in homogeneous and heterogeneous network environments, having started in educational institutions, continuing through technology service companies and health service institutions, always determined to solve network problems at different levels, with high technical knowledge, currently looking for a network engineer position, which allows me to apply all my knowledge and experience, achieving professional and personal development, providing all my ability to the organization, in order to form a mutually beneficial relationship based on trust and loyalty.
Overview
2
2
Languages
2
2
Certifications
11
11
years of post-secondary education
7
7
years of professional experience
Work History
Network Administrator
Hospital De Especialidades Eugenio Espejo
Quito, EC
09.2019 - 04.2021
- Performed day-to-day LAN, WAN and Internet administration, maintenance and support (70 access switches plus 1 core switch, in a collapsed backbone LAN design).
- Performed network switch configuration (Cisco Systems, 3COM, HPE, Dell, Juniper Networks brands) for reliable operation and administration, achieving all LAN switches to provide access for remote management (previously not available in all of them).
- Executed physical and logical planned maintenance tasks in the LAN environment (3 data centers, 70 access switches, 1 core switch and 2500+ data ports).
- Identified and immediately resolved issues with network devices, including firewalls, switches, routers, wireless LAN controller.
- Introduced and configured Zabbix for graphical network monitoring and troubleshooting in LAN/WAN/Internet segments (previously not available), using SNMP version 2.
- Performed network analysis and troubleshooting using Wireshark and SPAN/RSPAN for local and remote packet capture.
- Performed a detailed analysis of the internal LAN connections between access and core layers, being able to identify and correct misconfigurations in trunk interfaces, bottlenecks and data port inconsistencies.
- Analyzed, configured and optimized the internal VLAN structure (reducing their number from 40 to 22 fully operational VLANs)
- Configuration and troubleshooting of the previously deployed internal wireless network for the administrative staff (based on HP wireless access points and controller)
- Planning, design, installation and configuration of an exclusive medical research and investigation driven wireless network for the staff working inside COVID-19 Intensive Care Units for use during the current outbreak.
- Led planning, design, installation and configuration of a new internal wireless network for the medical branch (based on wireless routers) with secure network access control using RADIUS, providing controlled, fast and reliable wireless network access for use by the medical staff during the COVID-19 outbreak and in the future.
- Prepared diverse IT documentation (network diagrams, user guides, installation guides, main data cabling placement and identification).
- Other network-related tasks (port security, device configuration backup and restoration, NTP configuration and troubleshooting).
- Administration, maintenance and optimization of Red Hat-based perimeter firewall/e-mail inspector.
- Administration, maintenance and optimization of Red Hat-based proxy server.
- Configured client-to-site VPN access, troubleshooting and support for service providers, IT staff personnel and tele-workers.
- Prepared weekly and per-event network security reports for the IT director.
- Configuration, deployment, upgrade and troubleshooting of the internal IP telephony network composed by 280 IP phones (Grandstream and MITEL brands), 20 softphone-based extensions and an Asterisk-based FreePBX IP telephony central.
- Provided consistent support through remote and on-site technical and user support during on-call weekly rotation duty.
Networking Specialist
IBM Del Ecuador
Quito, EC
06.2018 - 05.2019
- Performed administration, operation and maintenance of Cisco Systems perimeter security equipment (Next Generation Firewalls (ASA), Intrusion Prevention Systems (Firepower) and E-mail Security Appliances (IronPort)) for major clients in various locations.
- Performed VPN client-to-site and site-to-site access configuration, maintenance and troubleshooting for national and international service providers, IT staff and major clients personnel.
- Provided level I and level II service support in data communication networks with Cisco Systems network infrastructure (routers and switches) for major clients.
- Installed and configured datacenter switches, NGFWs and other hardware for integration into clients networks in various locations.
- Preparation of surveys and mapping of structured cabling systems deployed inside the company´s main datacenter.
- Prepared highly detailed network diagrams for major clients (previously not available for all clients).
- Configuration, installation, maintenance and decommissioning of network appliances (firewalls, switches and other devices) in order to have secure configurations and up-to-date network devices.
- Performed guided vulnerability remediation and operating systems patch/update in network equipment (routers, switches, firewalls) in order to provide secure end-to-end communications.
- Remote and on-site technical and user support tasks.
- Prepared monthly reports of IPS performance and statistics for major clients.
- Other network related tasks (VLAN configuration, SNMP configuration, port security).
Computer Analyst
Instituto Ecuatoriano de Seguridad Social - IESS
Quito, EC
12.2014 - 06.2018
- Performed administration and operation of Check Point NGFW.
- Performed networking tasks (on a 3COM/HPE-based network environment) such as pre-deployment equipment configuration, VLAN configuration, port security, static routing, device hardening, ACL filtering configuration and troubleshooting, data cabling installations.
- Performed LAN network monitoring using Ipswitch WhatsUp Gold and HP OpenView.
- Introduced and configured Zabbix and Nagios test beds for graphical monitoring of main applications, databases and servers (previously not available), Zabbix being chosen for its ease of use and user-friendly web interface.
- Performed data cabling installation supervision, certification, documenting and support using Fluke tools of 2000+ data ports located in a new hospital building.
- Performed supervision, testing and commissioning of an exclusive nationwide informational IP telephony network based on Cisco ATA devices for use in hospitals and medical centers of the institution, providing an effective communication infrastructure towards the Customer Service Call Center.
- Responded to support requests from end users, staff members and service providers ranging from basic connectivity issues, VPN client-to-site remote access (for 2000+ users) to site-to-site VPN access configuration and troubleshooting.
- Prepared IT related documentation (reports, user guides, installation guides, internal installation standards for data cabling deployments)
- On-call 24x7x365 remote and head office support.
Chief of Communications and Computers Systems
ARBECUADOR CIA. LTDA.
Quito, EC
07.2013 - 08.2014
- Redesign of internal data network in the company’s headquarters: telecom and server room data cabling re-organization and identification, work areas telecom outlets and patch cords replacement and identification.
- Led the design and implementation of LAN environments in the ecuadorian Amazon Basin base camp in Francisco de Orellana (El Coca) and in various remote outpost camps.
- Prepared detailed diagrams of the company´s various LAN networks (previously not available).
- Provided network administration tasks such as VLAN configuration and port setting, port security, static routing, ACL filtering and port channel configuration.
- Introduced, configured, tested and deployed a linux-based Network Attached Storage (NAS) solution for scheduled backup of sensitive data (previously not available).
- Provided level II installation control of Leak Detection System (LDS) fiber optics network in the crude oil pipeline between Chiruisla and Apaika oilfields (Ecuador).
- Provided administration, operation and troubleshooting of Zentyal domain controller server and firewall.
- Provided basic administration of Zimbra internal e-mail server.
- Provided maintenance of VMware-based virtual servers for legacy in-house applications (for accounting, payroll and other specific duties)
- On-call remote and on-site user support.
Education
Master of Science - Computer Networks
Pontificia Universidad Católica Del Ecuador
Quito, EC 05.2014 - 01.2018
Bachelor of Science - Systems Engineering
Universidad Politécnica Salesiana
Quito, EC 10.2001 - 01.2009
Skills
Analysis and critical thinking
Network systems installation and maintenance
Network monitoring
Computer maintenance, upgrade and repair
Technical analysis
Technical translations (ENG to SPA and vice-versa)
Infrastructure planning
Routing and switching
Certification
CCNA - Cisco Certified Network Associate
Immigration Status
Visa type IV (Immigrant Visa), Lawful Permanent Resident (2021)
Timeline
Network Administrator
Hospital De Especialidades Eugenio Espejo
09.2019 - 04.2021
Networking Specialist
IBM Del Ecuador
06.2018 - 05.2019
Computer Analyst
Instituto Ecuatoriano de Seguridad Social - IESS
12.2014 - 06.2018
Master of Science - Computer Networks
Pontificia Universidad Católica Del Ecuador
05.2014 - 01.2018
Chief of Communications and Computers Systems
ARBECUADOR CIA. LTDA.
07.2013 - 08.2014
Bachelor of Science - Systems Engineering
Universidad Politécnica Salesiana
10.2001 - 01.2009