Peterson Nogueira dos Santos
Peterson Nogueira dos Santos

Senior Network & Security Engineer

Actively looking · Member since 17 Feb 2026
Message
Location
Brazil
Desired salary
from 35 USD/hourly
Work preference
Full Time
Experience level
Not set

About

Professional summary

I am an experienced Senior Network & Security Engineer with extensive expertise in deploying and managing complex network projects, including Cisco ACI, SD-WAN, and multi-vendor environments. I am proficient in DevOps operations, CI/CD for Infrastructure as Code (IaC), and cloud operations across Azure, GCP, AWS, and IBM Cloud. I have strong skills in security tools automation using Python and Linux shell scripts, which help improve security operations efficiently.

Throughout my career, I have worked on networking and security administration/support for national and international customers, focusing on LAN, WAN, WLAN, and SDN implementations. I have provided advanced L3 support for networks and Linux services, and I am experienced in developing workshops and training sessions for teammates on Linux, DevOps, automation, Python, and SDN technologies.

I have participated in global security team implementations and management of security tools such as WIZ, PAN SSE, multi-vendor WAFs, and IPS. I support SOC and NOC operations as Tier 3 support and assist corporate audits for global accounts with top standards requirements. My cloud operations experience includes supporting networking services for multiple cloud vendors.

I am skilled in various technical areas including routing and switching, IT security, cloud security, security architecture, compliance frameworks, RMM automation, DevSecOps, SIEM platforms, ITSM tools, network traffic analysis, SDN technologies, DevOps tools, virtualization, programming, and AI/ML. I continuously update my knowledge through certifications and training in areas such as Cisco, Linux, cybersecurity, big data, cloud computing, and software security.

Currently, I am engaged in activities related to CEH, Azure DevOps, AWS, Cisco DEVNET, and AI/ML. I am eager to contribute my technical skills and innovative solutions to infrastructure teams, helping organizations achieve secure and efficient network operations.

Skills

19 capabilities

Experience

Career history

Senior Network & Security Engineer AT&T

Network complex projects, deploying Cisco ACI, Cisco SD-WAN, Security solutions, LAN, WAN, WLAN sites implementations for national/international customers. Networking and security administration/support at AT&T portfolio customers with multi-vendor environments (Cisco, IronPort, Checkpoint, BlueCoat, Juniper, Fortinet, AVI, 3COM, HP, F5, A10). Focus and expertise in leading/deploying LAN / WAN / SDN implementations for worldwide customers. L3 advanced support for LAN/WAN networks, SDWAN, NFV services and Linux services (Bind, Squid, Apache, Postfix, Sendmail, iptables, etc.). Developing workshops/training for teammates and other teams for Linux, DevOps, Automations, Python and SDN. DevOps experience in the global team for DevOps operations performing CI/CD for IaC implementation and management for network services using Azure DevOps and Github Actions. Participated in global security teams implementations and management for security tools like: WIZ, PAN SSE, multi-vendors WAFs, IPS. Supporting SOC and NOC operations as Tier 3 support. Supporting corporate Audits for global accounts with top standards requirements. Support Cloud operations and implementations for networking services for multiple cloud vendors: Azure, GCP, AWS and IBM Cloud. Perform security tools automation using Python and Linux shell scripts to improve security operations. Experience in ServiceNow, HP, IBM Maximo.

Technical Data Processing IBM

Acting as L2 support for international customers from AT&T portfolio, providing management in multi-vendors network environments (Cisco, Enterasys, 3COM, HP, etc.). Expertise in improvement/transitions projects in various LAN environments.

Linux Instructor SENAC Jundiai

Ministering GNU/Linux classes.

IT Instructor Databyte IT School

Ministering IT classes (Microsoft Office 2003, PC Hardware and GNU/Linux).

Education

Learning history

UNIP

Information Technology (In Progress)

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