Network Engineer with 7 years of experience delivering enterprise networking, data center, cloud, and automation solutions. Experienced in the design, implementation, migration, troubleshooting, and operational support of complex infrastructures, with a strong focus on Cisco technologies, virtualization, Infrastructure as Code, and network automation.
Passionate about building reliable, scalable, and well-documented solutions that simplify operations and improve service delivery.
Enterprise Networking • Data Center Architecture • Cisco UCS • VMware • Storage • Disaster Recovery • SD-WAN • Network Automation • Python • Infrastructure as Code • Enterprise Architecture
Mail: umbertocalo09@gmail.com | Location: Milan, Italy LinkedIn: linkedin.com/in/umbertocalo | GitHub: github.com/umbertocalo
Contributed to the design and delivery of enterprise networking, data center, cloud, and automation solutions for strategic customers, supporting the full project lifecycle from assessment and architecture design to implementation and operational handover.
Worked on large-scale data center transformation initiatives, including enterprise data center migration programs and the design of greenfield Disaster Recovery infrastructures involving compute, storage, virtualization, and networking technologies across multi-vendor environments.
Took part of network automation initiatives by developing Python-based solutions and automation platforms integrating CMDBs, configuration management, compliance validation, monitoring, and operational workflows to improve infrastructure visibility and operational efficiency.
Delivered design, implementation, and operational support for enterprise networking, data center, and cloud infrastructures, taking increasing ownership of customer engagements and technical delivery.
Specialized in compute, storage, virtualization, and cloud technologies, supporting a major enterprise customer’s cloud transformation by contributing to Azure, GCP and AWS adoption and Infrastructure as Code initiatives while gaining exposure to multi-cloud environments. Led the end-to-end delivery of a Proof of Concept and subsequent production rollout of a Cisco Meraki SD-WAN solution across approximately 50 retail sites, managing solution design, implementation, technical coordination, customer communication, and transition to operations.
Supported the deployment, configuration, testing, and acceptance of enterprise networking and data center infrastructures across a wide range of customer environments.
Contributed to implementation projects of varying scope, from single-device installations to multi-day infrastructure upgrades, working alongside senior engineers to deploy and validate network and server solutions. Gained broad hands-on experience through frequent customer engagements, onsite activities, and exposure to diverse enterprise technologies and implementation methodologies.
Customer: Leading Defense Industry Company Role: Data Center Engineer Technologies: Cisco UCS, Cisco MDS, Cisco ACI, Cisco Nexus Dashboard Orchestrator, HPE Synergy, Dell PowerEdge, Dell Unity, Dell PowerStore, Dell VPLEX, Pure Storage, VMware ESXi, VMware vCenter, Fibre Channel, SAN Zoning, Zerto
Performed a comprehensive assessment of the customer’s primary data centers to design a new greenfield Disaster Recovery infrastructure. Conducted technical workshops and interviews with key stakeholders across infrastructure, application, networking, storage, and operations teams to understand business requirements, application dependencies, recovery objectives, and operational processes.
Contributed to the definition of the target data center architecture, including compute, storage, virtualization, network fabric, SAN infrastructure, and disaster recovery workflows. Supported the design of recovery and rollback procedures, technology evaluation, and multi-vendor solution comparison, producing technical documentation and Bill of Materials for the proposed solution.
The project involved the evaluation and integration of modern data center technologies, including Cisco ACI-based networking, Nexus Dashboard Orchestrator, enterprise storage platforms, virtualization environments, and replication technologies to deliver a resilient and scalable DR architecture.
Tags: #DataCenter #DisasterRecovery #DR #Greenfield #Architecture #SolutionDesign #CiscoACI #NexusDashboardOrchestrator #CiscoUCS #CiscoMDS #HPE #Synergy #Dell #PowerEdge #PowerStore #VPLEX #PureStorage #VMware #Zerto #SAN #FibreChannel #EnterpriseInfrastructure #year2026
Customer: Leading Transportation Company Role: Data Center Engineer Technologies: Cisco UCS, Cisco MDS, HPE Synergy, HPE Alletra, Pure Storage FlashArray, Dell Unity, Dell VxBlock, VMware ESXi, VMware vCenter, Fibre Channel, SAN Zoning
Performed the assessment and migration planning of one of the customer’s primary data centers, analyzing the existing infrastructure architecture, technology stack, dependencies, and operational workflows. Contributed to the definition of the migration strategy and execution plan for a complex enterprise environment involving multiple vendors and technology domains.
Collaborated with infrastructure, application, networking, storage, virtualization, and migration teams to map dependencies, validate technical requirements, and support the development of the migration runbook. The project involved enterprise compute platforms, storage systems, SAN fabrics, and virtualization environments, requiring coordination across multiple technology layers to ensure service continuity during migration activities.
Tags: #DataCenter #DataCenterMigration #CiscoUCS #CiscoMDS #HPE #Alletra #Synergy #PureStorage #Dell #VxBlock #VMware #ESXi #vCenter #SAN #FibreChannel #Storage #Virtualization #InfrastructureArchitecture #year2025
Customer: Enterprise Manufacturing & Retail Company Role: Network Automation Engineer Technologies: Python, Docker, Docker Compose, NetBox, Gitea, Jenkins, Traefik, Cisco Meraki API
Designed and implemented a custom automation platform to support the customer’s network automation journey and improve infrastructure visibility and operational efficiency. Developed a containerized platform deployed on separate virtual machines, including segregated NetBox environments for development and production, a Git-based automation environment with Gitea and Jenkins, and a custom KPI tracking dashboard.
Implemented the platform using Docker and Docker Compose, with Traefik providing reverse proxy capabilities for containerized services. The solution established the foundation for future network automation workflows, configuration management, and infrastructure lifecycle processes.
Tags: #Python #Automation #NetworkAutomation #NetDevOps #DevOps #Docker #DockerCompose #NetBox #Gitea #Jenkins #Traefik #RESTAPI #Cisco #Meraki #InfrastructureAsCode #year2025
Customer: Enterprise Manufacturing & Retail Company Role: Network Automation Engineer Technologies: Python, REST APIs, Cisco Meraki Dashboard API, Data Processing, Visualization
Developed a custom monitoring and reporting solution to collect and visualize key performance indicators from multiple Cisco Meraki organizations belonging to different business entities. Created automated data collection workflows to track critical infrastructure metrics, including device inventory and licensing status, connected enterprise clients, guest users, and bandwidth utilization.
The solution provided centralized visibility across distributed Meraki environments, improving operational awareness and enabling data-driven infrastructure management.
Tags: #Python #Automation #Cisco #Meraki #API #RESTAPI #Monitoring #KPI #Dashboard #DataAnalytics #NetworkVisibility #NetworkManagement #year2024
Customer: Leading Media & Entertainment Company Role: Network Engineer (Staff Augmentation) Technologies: Cisco Catalyst Center, Cisco ThousandEyes, SD-Access, Campus Networking
Supported enterprise campus transformation initiatives focused on network modernization, observability, and automation. Contributed to campus infrastructure refresh activities, implementation of Cisco ThousandEyes for application visibility and network experience monitoring, and the migration of Cisco Catalyst Center from a single-node deployment to a high-availability three-node cluster.
Participated in the design and Proof of Concept activities for Cisco SD-Access, evaluating software-defined networking capabilities and their applicability within the customer’s campus architecture.
Tags: #Cisco #CatalystCenter #SDAccess #SDN #ThousandEyes #CampusNetworking #NetworkAutomation #NetworkVisibility #Observability #EnterpriseNetworking #HighAvailability #year2023
Customer: Leading Oil & Gas Company Role: Network Engineer (Staff Augmentation) Technologies: Azure, AWS, GCP, Terraform, GitLab, Cisco Enterprise, Cisco Meraki SD-WAN
Supported the customer’s Architecture, Capacity Management, and Project Delivery teams during a year-long staff augmentation engagement. Contributed to the definition of enterprise network and cloud architectures across Azure, AWS, and GCP, adopting Infrastructure as Code practices based on Terraform and GitLab. Participated in technology assessments, Proof of Concepts, infrastructure lifecycle planning, and hardware refresh initiatives for an environment of approximately 5,000 network devices.
Led the transition of a Cisco Meraki SD-WAN solution from Proof of Concept to production, coordinating technical validation, deployment planning, implementation activities, HLD/LLD documentation, vendor coordination, and operational handover. The project delivered secure connectivity for approximately 25 remote locations, including retail offices and executive home offices, and established the operational processes for long-term service support.
Tags: #Cisco #Meraki #SDWAN #Azure #AWS #GCP #Cloud #Terraform #IaC #GitLab #Architecture #HLD #LLD #NetworkDesign #EnterpriseNetworking #year2022
Customer: UEFA Role: Network Implementation & Operations Engineer Technologies: Cisco Enterprise Networking, LAN/WAN, Routing & Switching, Wireless, Network Operations
As part of the international NTT delivery team, contributed to the implementation, validation, and operational support of the network infrastructure for UEFA EURO 2020 at the Rome Olympic Stadium. Participated in the deployment and testing of the event network before the tournament and provided operational support throughout the competition, ensuring service availability during live match broadcasts and mission-critical event operations in coordination with international engineering teams.
Tags: #Cisco #Networking #LAN #WAN #Routing #Switching #Wireless #NetworkOperations #EnterpriseNetworking #SportsEvents #year2021
Enterprise Networking, Data Center, Automation and AI Infrastructure
Cisco certifications covering enterprise networking, data center infrastructure, automation, AI-ready infrastructure, and deployment methodologies across routing, switching, virtualization, and compute platforms.
Tags: #Cisco #EnterpriseNetworking #Routing #Switching #DataCenter #UCS #Automation #DevNet #AIInfrastructure
Cloud Fundamentals
Foundation knowledge of Microsoft Azure cloud services, governance, security, and cloud adoption principles.
Tags: #Microsoft #Azure #Cloud #AZ900 #CloudFundamentals
Enterprise Storage & Data Management
Enterprise storage administration, deployment, and lifecycle management for ONTAP-based storage infrastructures.
Tags: #NetApp #ONTAP #Storage #NAS #SAN #EnterpriseStorage #DataManagement
High School Diploma in IT and Telecommunications