Professional with extensive experience in network administration and implementation in multinational companies, specializing in Cisco solutions (CCNA Voice, CCNP R&S). Possesses solid experience with HP, Huawei, Brocade, and 3Com switches, as well as NGFW firewalls such as Firepower, Fortigate, and Checkpoint, along with Pfsense, ASA, and Meraki.Also has expertise in HSC Mailinspector and Kaspersky. Has worked on complex network and security projects, leading initiatives in high-demand environments. Competencies include VoIP, continuous operations management, problem resolution, advanced routing (BGP, OSPF), network documentation, and systems integration. Holds a degree in Information Technology and has participated in large-scale projects, such as network implementation for major events, complex troubleshooting, and comprehensive network documentation.
-
Network AnalystTivit May 2019 - PresentRio De Janeiro, BrasilFocused on network security, with experience in the implementation and administration of solutions such as CISCO ASA, CISCO Firepower, Fortinet, and Cisco ISE to protect the integrity of systems and data.Working at TIVIT in partnership with ENEL, I have focused on the security and efficiency of network infrastructure. My responsibilities range from system security to hardware maintenance and optimization, positioning me as a versatile professional in network administration and information security. -
Network AdministratorPetrobras Aug 2015 - Sep 2020Rio De Janeiro, BrasilResponsible for monitoring and troubleshooting an extensive inventory of approximately 8,000 network devices, ensuring continuous and reliable operations.Specialist in resolving Backbone IP issues, utilizing protocols such as BGP and OSPF. Also experienced in SkyEdge Satellite networks and SDH/DWDM technologies.Extensive experience working with a diverse range of equipment from various manufacturers, including Cisco, Juniper, HP, Huawei, Nortel, and Enterasys.During my time at Petrobras, I was involved in managing and troubleshooting a highly complex and diverse network environment. This role required deep technical knowledge and the ability to quickly adapt to different technologies and protocols, reinforcing my expertise in large-scale network administration. -
Network AnalystVale Aug 2014 - Aug 2015Rio De Janeiro, BrasilSpecialized in upgrading and configuring VoIP systems using tools like CUCM and Call Manager Express.Responsible for monitoring, configuring, and updating network equipment using platforms like CACTI and Spectrum to ensure optimized performance.Administered and configured network security solutions through CISCO ASA Firewall, ensuring system integrity and security.Proficient in troubleshooting and routing with OSPF and BGP protocols to ensure efficient and reliable network communication.Conducted technical analyses and configuration adjustments on equipment from various manufacturers, including CISCO, Juniper, and HP.My experience at VALE (in partnership with TCS) enhanced my expertise in network administration and system security. I contributed to maintaining and improving a complex network infrastructure, utilizing a variety of tools and protocols to ensure robust and secure network performance. -
Network AnalystQuality Digital Aug 2013 - Aug 2014Rio De Janeiro, BrasilLeadership in project management and upgrades at Markel International Reinsurance, focusing on network equipment and technological solutions, including Brocade and CISCO devices.International collaboration with teams in England, the USA, Bermuda, Colombia, and Argentina, contributing to network issue resolution and infrastructure optimization.Managed and administered fixed and mobile telephony systems, specializing in CISCO IP Phone and Call Manager technology.
Hallison Liberato Education Details
-
Bachelor Of Technology - Btech
Frequently Asked Questions about Hallison Liberato
What company does Hallison Liberato work for?
Hallison Liberato works for Tivit
What is Hallison Liberato's role at the current company?
Hallison Liberato's current role is Network Analyst.
What schools did Hallison Liberato attend?
Hallison Liberato attended Instituto Infnet.
Who are Hallison Liberato's colleagues?
Hallison Liberato's colleagues are Maria Cristiane Santos, Vivian Rodas, Nelson Uchôa, Tatiane Almeida, Nathália Lúcia Dos Santos, Denise Nascimento, Leonard Enrique Zuluaga Caicedo.
Free Chrome Extension
Find emails, phones & company data instantly
Aero Online
Your AI prospecting assistant
Select data to include:
0 records × $0.02 per record
Download 750 million emails and 100 million phone numbers
Access emails and phone numbers of over 750 million business users. Instantly download verified profiles using 20+ filters, including location, job title, company, function, and industry.
Start your free trial