Mario Ramos
Miraflores,Peru Lima
Summary
Senior Network Engineer with 10+ years of experience in enterprise and data center networking. Expertise in Cisco, Fortinet, Juniper, Huawei, SD-WAN, and network automation. Adaptable, coachable, and results-driven professional with strong collaboration and problem-solving skills. Committed to delivering high-performance, secure, and reliable network solutions.
Overview
15
15
years of professional experience
1
1
Certification
Work History
SENIOR SPECIALIST NETWORK
WSP USA
Lima, Peru
05.2025 - 01.2026
- Led enterprise WAN transformation programmes across the Americas, managing onboarding, migration, and decommissioning of 200+ WAN circuits, reducing operational costs by 18%.
- Designed and implemented SD-WAN (Aruba / Silver Peak) deployments across 150+ branch locations, improving network performance and increasing uptime to 99.99%.
- Developed standardised configuration policies, test plans, and risk assessments, reducing change-related incidents by 30%.
- Coordinated cross-functional teams and WAN service providers to execute large-scale connectivity changes with zero major outages.
- Ensured seamless transition to operations under ITIL practices using ServiceNow, improving ticket resolution efficiency by 25%.
- Led troubleshooting of critical WAN incidents, restoring services within SLA, and minimising business disruption.
- Integrated enterprise services (DHCP, DNS, RADIUS, AD, PKI) into SD-WAN and SSE (Zscaler) environments.
- Contributed to network automation initiatives, reducing manual configuration efforts by 40%.
NETWORK SERVICE MANAGER
FRACTALIA ECUADOR
Lima
12.2023 - 04.2025
- Managed enterprise networking operations for 20+ banking and retail customers at Telefónica Ecuador, leveraging network automation to standardize configurations and deliver secure, stable, and high-performance connectivity in SLA-driven environments.
- Provided Tier 3 operational support for enterprise Metro-Ethernet and MPLS networks, troubleshooting MP-BGP across Cisco IOS-XE, NX-OS, and IOS-XR platforms.
- Led SLA management and control to ensure continuous compliance with B2B service agreements.
- Planned and conducted periodic meetings to present KPIs, metrics using Power BI, and develop action plans.
- Designed and optimized LAN/WAN topologies for software-defined solutions and data center infrastructures, leveraging network automation to standardize configurations, minimizing downtime, and align network designs with business requirements in collaboration with vendors and clients.
- Provided continuous network engineering support and monitoring using SolarWinds, NetFlow, and Wireshark, delivering actionable insights through Power BI and ServiceNow, in accordance with IT Service Management (ITSM) best practices.
NETWORK AND SECURITY ENGINEER
BVS Peru
Lima
01.2024 - 11.2024
- Collaborated with Intercorp Peru to migrate legacy firewall and switching infrastructures to FortiGate NGFW F3200D and Cisco Nexus 9000YC-EX, implementing VDOM and VRF segmentation across Entel and Kyndryl data centers to improve security, scalability, and performance.
- Provided Tier 3 routing and switching support for enterprise environments, troubleshooting IS-IS, OSPF, BGP, vPC, VRFs, and HSRP, as well as VLANs, ACLs, and STP in response to incidents and service requests.
- Configured and administered FortiGate firewall platforms, monitored network infrastructure using PRTG, and resolved critical incidents to ensure high availability and SLA compliance.
- Designed proof-of-concept (PoC) environments and executed on-site data center operations, including equipment installation, structured cabling, and network configuration.
- Coordinated with ISPs and technology vendors to align best practices with client requirements, and developed Visio network topology diagrams to support planning, troubleshooting, and service delivery.
NETWORK INTEGRATION ENGINEER
HARMONIC USA
Lima
10.2022 - 11.2023
- Worked with Claro Perú contributing to the migration of traditional DOCSIS internet and video infrastructure to a cloud-native virtualized vCMTS solution (cOS Broadband).
- Configured and troubleshot DOCSIS 3.0, CMTS, R-PHY, Ethernet, TCP and FTTx environments, leveraging Ansible automation for configuration standardization and system integrations to improve scalability, reliability, and performance.
- Worked on-site in data centers, performing service setup, fiber optic connections, and equipment installation.
- Monitored network performance, managed tickets and service requests, and collaborated with stakeholders to ensure smooth operations and continuous service delivery.
- Assisted in customer support in coordination with Harmonic's Technical Assistance Center (TAC).
- Supported cOS client integration, testing, qualification, and field trials, ensuring successful deployment and operation.
SENIOR NETWORK ENGINEER
NETAXION CHILE
Moquegua
02.2022 - 09.2022
- Worked with Anglo American Mine to design, manage, and deploy secure LAN, WAN, WLAN, and VPN network solutions for open-pit and underground mining environments, leveraging automation to standardize configurations, streamline deployments, and ensure reliable connectivity in harsh operational conditions.
- Ensured reliable connectivity for critical operations, linking field devices, control rooms, and data centers.
- Managed tickets via ServiceNow and monitored network performance using SolarWinds.
- Supported industrial systems (SCADA, PLCs, HMIs) and protocols including Modbus, PROFINET, and EtherNet/IP. Implemented IT/OT segmentation, OT cybersecurity best practices, and compliance with NIST, ISA/IEC 62443, and ISO 27001 standards.
- Deployed and optimized wireless technologies such as Wi-Fi mesh, radiolinks, Fluidmesh, and Cisco solutions, including in challenging areas like shafts and tunnels.
- Provided Tier 2/3 support for operational network incidents.
NETWORK OPERATION CENTER (NOC)
FRACTALIA PERU
Lima
06.2019 - 02.2022
- Provided Tier 2/3 operational support for enterprise networking environments at Telefónica Peru, managing critical incidents and service requests for major clients, including banking and retail organizations.
- Managed QoS across WAN links, CE and PE devices, and access networks from multiple vendors, including Cisco, Juniper, Adtran, Huawei, Teldat, Telco, T-Marc, and Datacom, ensuring optimal network performance and service quality.
- Troubleshot and resolved complex MPLS, L3VPN/L2VPN, Metro Ethernet, and last-mile network issues, leveraging BGP and LAN protocols (HSRP, VLANs, Port Channels, Port Security) to maintain high availability and performance.
- Administered and troubleshot network technologies including Cisco Meraki, Cisco Nexus 7k/9k (VXLAN, EVPN), SD-WAN, ACI, and Fortinet, ensuring high availability, stability, and optimal performance across enterprise networks.
- Monitored network performance using SolarWinds and performed packet analysis with Wireshark, coordinating with Cisco engineers to resolve critical incidents and maintain service-level agreements (SLAs).
- Administered IT management platforms such as BMC Remedy.
NETWORK OPERATIONS CENTER TECHNICIAN
COBRA PERU
Lima
06.2015 - 05.2019
- Worked as a Network Technician and Specialist at Telefónica Perú, handling the configuration and installation of network devices for enterprise clients.
- Installed and tested network and fiber optic equipment across data centers and nodes to ensure optimal performance.
- Deployed enterprise internet and VPN solutions, guaranteeing secure and stable connectivity.
- Managed FTTx/xPON installations, fiber connections (SC/PC, LC/PC), fiber certification, and structured cabling, ensuring reliable network operations across multiple enterprise sites.
TELECOMMUNICATION TECHNICIAN
COBRA PERU
Lima
03.2011 - 05.2015
- Worked on the installation, configuration, and maintenance of residential and enterprise telecommunications services for Telefónica Perú clients, including xDSL, HFC, GPON, telephony, and CCTV.
- Managed fiber and copper outside plant infrastructure, ensuring stable and efficient network connectivity.
- Conducted field operations such as splicing, testing, troubleshooting, and customer equipment setup.
- Collaborated with cross-functional teams to optimize deployments and developed strong expertise in fiber optic technologies and telecom infrastructure.
Skills
- Coachable and reliable professional
- Quick learner and attentive listener
- Passionate about continuous learning and self-improvement
- Clear vision aligned with company objectives
- Committed to delivering top performance
- Works effectively both independently and in team environments
Certification
• CCNP Enterprise, Cisco certified
• Specialist Data Center Core, Cisco certified
• Specialist Enterprise Core, Cisco certified
• Specialist Enterprise SD-WAN Implementation, Cisco certified
• CCNA, Cisco certified
Languages
Spanish
First Language
English
Advanced
C1
EDUCATION
2022
NETWORK AND COMUNICATION ENGINEER
Universidad Peruana de Ciencias Aplicadas-UPC - Lima, Peru
-
2018
NETWORK AND TELECOMUNICATION TECHNICAL
Instituto San Ignacio de Loyola - ISIL - Lima, Peru
Interests
Boxing
Active Member, Toastmasters International
Technical Mentoring and Knowledge Sharing
Continuous Learning through Networking & Cybersecurity
Timeline
SENIOR SPECIALIST NETWORK
WSP USA
05.2025 - 01.2026
NETWORK AND SECURITY ENGINEER
BVS Peru
01.2024 - 11.2024
NETWORK SERVICE MANAGER
FRACTALIA ECUADOR
12.2023 - 04.2025
NETWORK INTEGRATION ENGINEER
HARMONIC USA
10.2022 - 11.2023
SENIOR NETWORK ENGINEER
NETAXION CHILE
02.2022 - 09.2022
NETWORK OPERATION CENTER (NOC)
FRACTALIA PERU
06.2019 - 02.2022
NETWORK OPERATIONS CENTER TECHNICIAN
COBRA PERU
06.2015 - 05.2019
TELECOMMUNICATION TECHNICIAN
COBRA PERU
03.2011 - 05.2015