Umberto Calò

Network, Data Center and Automation Engineer

Network Engineer with 7 years of experience delivering enterprise networking, data center, cloud and automation solutions across large-scale customer environments.

Enterprise Networking Cisco Nexus Cisco Catalyst Center SD-Access Meraki SD-WAN ThousandEyes LAN WAN Routing & Switching Wireless Cisco UCS Cisco MDS Fibre Channel VMware Pure Storage NetApp ONTAP HPE Alletra HPE Synergy Dell PowerEdge Dell Unity Dell PowerStore Dell VPLEX Azure AWS GCP Terraform Python Ansible Git Jenkins NetBox REST API Docker Docker Compose Traefik Gitea GitLab DevOps NetDevOps Data Processing Visualization

umbertocalo09@gmail.com · Milan, Italy · linkedin · github

Professional Experience

NTT Data

Milan

Senior Associate Systems Integration Specialist
  • Contributing to the design and delivery of enterprise networking, data center, cloud and automation solutions for strategic customers, from assessment through implementation and operational handover.
  • Working on large-scale data center transformation initiatives, including enterprise data center migrations and greenfield Disaster Recovery infrastructure design.
  • Taking part in network automation initiatives, developing Python-based solutions integrating CMDBs, configuration management, compliance validation and monitoring.
L2 Technical Services Implementation Engineer
  • Delivered design, implementation and operational support for enterprise networking, data center and cloud infrastructures.
  • Specialized in compute, storage, virtualization and cloud technologies, supporting a major customer’s cloud transformation across Azure, GCP and AWS.
  • Led end-to-end delivery of a Cisco Meraki SD-WAN rollout across ~50 retail sites.
L1 Technical Services Implementation Engineer
  • Supported deployment, configuration, testing and acceptance of enterprise networking and data center infrastructures across a wide range of customer environments, from single-device installations to multi-day infrastructure upgrades.

Projects

AI Pod Deployment

Internal project - Development — AI/Infrastructure Engineer

Design and implementation of an on-premises AI lab based on open-source solutions: Ollama and Open WebUI powered by an NVIDIA RTX PRO 6000 GPU (96 GiB RAM). The architecture integrates several MCP servers orchestrated via MCPO proxy, providing the AI assistant with tools for web search, crawling, document generation, and bidirectional CRUD management of a NetBox appliance used as a DCIM solution (devices, IPs, VLANs, VMs, circuits, etc.). Includes configurable system prompts, and a full containerized deployment pipeline on Docker Compose.

DEV Python Docker Docker Compose Ollama Open WebUI MCP MCPO NetBox Crawl4AI OfficeCLI NVIDIA CUDA REST APIs DevOps

Greenfield Disaster Recovery Data Center Design

Leading Defense Industry Company — Data Center Engineer

Comprehensive assessment of the customer’s primary data centers to design a new greenfield Disaster Recovery infrastructure, including compute, storage, virtualization, network fabric, SAN and DR workflows.

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

Enterprise Data Center Assessment & Migration

Leading Transportation Company — Data Center Engineer

Assessment and migration planning of one of the customer’s primary data centers, analyzing existing architecture, technology stack, dependencies and operational workflows.

Cisco UCS Cisco MDS HPE Synergy HPE Alletra Pure Storage FlashArray Dell Unity Dell VxBlock VMware ESXi VMware vCenter Fibre Channel SAN Zoning

Network Automation Platform & NetDevOps Enablement

Enterprise Manufacturing & Retail Company — Network Automation Engineer

Designed and implemented a custom automation platform: containerized environment with segregated NetBox instances, Git-based automation with Gitea and Jenkins, and a custom KPI dashboard behind Traefik.

Python Docker Docker Compose NetBox Gitea Jenkins Traefik Cisco Meraki API

Cisco Meraki Infrastructure KPI Tracking Platform

Enterprise Manufacturing & Retail Company — Network Automation Engineer

Custom monitoring and reporting solution to collect and visualize KPIs across multiple Cisco Meraki organizations: device inventory, licensing, connected clients, guest users and bandwidth utilization.

Python REST APIs Cisco Meraki Dashboard API Data Processing Visualization

Enterprise Campus Transformation & Catalyst Center Adoption

Leading Media & Entertainment Company — Network Engineer (Staff Augmentation)

Supported campus transformation initiatives: ThousandEyes for application visibility, migration of Catalyst Center from single-node to a three-node HA cluster, and SD-Access design/PoC activities.

Catalyst Center SD-Access ThousandEyes Campus Networking

Enterprise Cloud Transformation & SD-WAN Delivery

Leading Oil & Gas Company — Network Engineer (Staff Augmentation)

Contributed to enterprise network and cloud architectures across Azure, AWS and GCP with Terraform and GitLab. Led the transition of a Cisco Meraki SD-WAN solution from PoC to production for ~25 remote locations.

Azure AWS GCP Terraform GitLab Cisco Enterprise Cisco Meraki SD-WAN

UEFA EURO 2020 — Stadium Network Operations

UEFA — Network Implementation & Operations Engineer

Contributed to implementation, validation and operational support of the network infrastructure at the Rome Olympic Stadium, ensuring service availability during live match broadcasts.

Cisco Enterprise Networking LAN WAN Routing & Switching Wireless Network Operations

Certifications and Studies

Cisco

Enterprise Networking, Data Center, Automation and AI Infrastructure

  • Cisco Black Belt - SecureAI Factory Pre-Sales Stage 1 (Partners only) — Jul 2026
  • AI Solutions on Cisco Infrastructure Essential — May 2025
  • Cisco Black Belt - Intersight Deployment Stage 1, 2 and 3 (Partners only) — Jul 2023
  • Cisco Black Belt - UCS Deployment Stage 1, 2 and 3 (Partners only) — Mar 2023
  • Cisco CCNP Data Center — Mar 2022
  • Cisco Certified Specialist - Data Center Core (DCCOR 350-601) — Mar 2022
  • Cisco Certified DevNet Specialist - DC Automation (DCAUTO 300-635) — Jun 2021
  • Cisco CCNA Routing and Switching (200-125) — Jan 2020
  • Cisco IT Essentials — May 2019

Microsoft

Cloud Fundamentals

  • Cloud Champion Italy - Microsoft Azure Technical Qualified — Feb 2021
  • Microsoft Certified: Azure Fundamentals (AZ-900) — Jun 2020

NetApp

Enterprise Storage & Data Management

  • NCDE, NSO-184 — NetApp Certified Storage Installation Engineer, ONTAP — Apr 2025
  • NCDA, NSO-162 — NetApp Certified Data Administrator, ONTAP — Dec 2023

Education

ITIS Vittorio Emanuele III

Palermo, Italy

High School Diploma in Information Technology and Telecommunications