Victor Martin Alvarenga
Senior IT Security and Infrastructure Specialist @Telecentro
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WORK HISTORY
Senior IT Security and Infrastructure Specialist @Telecentro
Buenos Aires Province, AR
IT Security Architecture and OperationsResponsible for ensuring the availability, integrity, and continuity of the company’s infrastructure through the design and implementation of robust security and networking solutions.Key Responsibilities:• Design and maintenance of security architecture under a Zero Trust model.• Management of critical migrations and high-impact infrastructure changes.• Troubleshooting of complex security and network incidents across hybrid environments.• Technical support and auditing of internal and B2B projects.• Implementation and administration of secure connectivity solutions (Remote Access and Site-to-Site VPNs).• Enforcement of security policies: Access Control Lists (ACL), NAT, geoblocking, IDS/IPS.• Analysis of network traffic and incident diagnostics using advanced tools.Technologies and Tools:• Firewalls & Security Platforms: Cisco Firepower Management Center (FMC), Cisco Firepower Threat Defense (FTD), Cisco ASA 5500/5585-X, Cisco ASAv, SonicWall.• Access & Identity Management: Cisco Identity Services Engine (ISE), Cisco Umbrella, Active Directory, pxGrid integration.• VPN Solutions: Remote Access VPN (SSL), Site-to-Site VPN (IPsec), Cisco AnyConnect, Cisco Secure Client 5.• Networking & Protocols: Access Control Lists (ACL), NAT, Geoblocking, IDS/IPS, Routing and Switching (L2/L3), VLANs, OSPF, BGP.• Troubleshooting & Monitoring: Wireshark, packet capture analysis, log correlation, advanced network and security diagnostics.• Cloud & Hybrid Environments: Google Cloud Platform (GCP), cloud connectivity and security operations.• Security Operations: Incident response, change management, infrastructure hardening, security policy enforcement, Zero Trust architecture.• Project Involvement: Critical migrations, cross-functional support for infrastructure and cybersecurity projects (internal and B2B), ticket and incident resolution (ITSM platforms).
EDUCATION
Universidad Gastón Dachary
Network analyst
Instituto Universitario 'Gastón Dachary'
Informatic Engineer, Software Engineer
SKILLS
ABOUT VICTOR MARTIN ALVARENGA
Information Systems Engineer with a Diploma in Cybersecurity and over 10 years of experience in Networking, Cybersecurity, and IT Infrastructure. Specialized inthe design, implementation, and operation of network and security architectures for critical environments, applying models such as Zero Trust, securesegmentation, and perimeter protection through Firewalls and VPNs. Extensive experience working with Cisco technologies in telecommunications operators,internet service providers (ISPs), and organizations with high-availability environments and strict security requirements. Proven skills in technical leadership, teammanagement, and IT operations optimization.SKILLSNetworking Protocols: BGP, OSPF, MPLS, MP-BGP, VRF, IPv4, IPv6, VLAN, STP, LACP. Routing and Switching.Cybersecurity: Zero Trust, Cisco ASA, Cisco Firepower, Cisco ISE, Fortinet, SonicWall, Geoblocking, IDS/IPS, VPN RA SSL, VPN Site-to-Site IPSec, Cisco Secure Client,DNS Umbrella.Systems and Virtualization: Linux, Windows, VMware vSphere, Proxmox VE.Network Technologies: DWDM, GPON, Metro Ethernet, FTTH, IoT, CDN (Flow, Netflix, Google, Facebook), Private CDN Infrastructure.Methodologies: Scrum (JIRA), ITIL.Soft Skills: Leadership, Critical Thinking, Problem Solving, Effective Communication, Proactivity, Continuous Learning.Vendors: Cisco, Mikrotik, Huawei, HP, Ubiquiti, Cambium, Allied Telesis.
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