Rafael Massarollo Giannini Email & Phone Number

Currently serving as a SOC Tier 2 Analyst at ISH Tecnologia, I am actively developing my skills and knowledge in cybersecurity. My role involves hands-on experience and continuous learning across various aspects of security in different platforms and cloud environments.Key Responsibilities and Development Focus:Engaging in Azure AAD Management and exploring AWS Security, with a focus on GuardDuty and CloudTrail for cloud protection and monitoring.Learning Endpoint Security, including Defender and CyberReason solutions.Contributing to the implementation of security policies to enhance overall security posture.Developing experience in Microsoft Sentinel Management, including the creation of SIEM rules based on MITRE standards for threat detection.Exploring Playbooks/Runbooks development for incident response.Working on automations within the Sentinel platform to improve operational efficiency.Actively involved in RAW LOG analysis covering Windows, Active Directory, Firewall, EDR, Linux, and Microsoft 365 to identify and address potential security threats.I am enthusiastic about the ongoing opportunity for skill development and growth in the dynamic field of cybersecurity while actively contributing to the security initiatives at ISH Tecnologia.

São Paulo, São Paulo. Brasil

Analyst allocated to a client, responsible for managing the Kaspersky administration server and implementing and maintaining the antivirus software on their machine park. I also provide support for Linux systems at client sites. As a personal challenge, I have created scripts to automate repetitive tasks and installation fixes.> Linux Troubleshooting.> Kaspersky Administration, troubleshooting and implementation.> Shell Script> Powershell Script> Creates guides for the final user

São Paulo, São Paulo, Brasil

Engaged in the comprehensive preparation of Linux servers for deployment to various military organizations, showcasing proficiency in server and Linux virtual machine administration. Key responsibilities encompassed verifying and updating operating systems, managing disk space, RAM, and network card configurations.Key Achievements and Responsibilities:Prepared Linux servers for deployment to other military organizations.Administered Linux servers and virtual machines, conducting OS verification and updates, and overseeing disk space, RAM, and network configurations.Utilized virtualization technologies including XCP-ng, Vmware, and XenCenter for efficient server management.Demonstrated expertise in Linux system administration, particularly with CentOS and Debian distributions.Automated processes through Shell scripts, streamlining routine tasks and enhancing operational efficiency.Provided guidance to newcomers on Linux system administration and usage, contributing to team skill development.Created and implemented firewall rules using IPTables, ensuring network security.Possessed knowledge of ISO 20.000 and ITIL, incorporating best practices in IT service management as gained through training provided by the 1st Center for Area Telematics (SisTEx).

São Paulo, São Paulo, Brasil

Served as an IT Assistant in the Informatics Department at 3rd CTA, based in São Paulo, where I actively engaged in monitoring and repairing both hardware and software components. Key responsibilities included serving as a Windows and Linux system administrator, printer configuration, network software updates, maintenance and management of the access system, password and access account management for the Samba server, and handling service requests.Key Responsibilities and Achievements:Monitored and performed repairs on both hardware and software components, ensuring seamless functionality.Administered Windows and Linux systems, ensuring their optimal performance and security.Configured printers, managed network software updates, and maintained the access system.Oversaw password and access account management for the Samba server, ensuring secure network access.Effectively managed and resolved service requests, contributing to overall operational efficiency.Skills:Linux Systems AdministrationThis experience at the Informatics Department of 3rd CTA enhanced my proficiency in IT support, systems administration, and network management.

Brasil

As a Support Technician in the Operations Subsection at the 3rd CTA Data Center, I played a crucial role in assisting and monitoring on-site servers. My responsibilities included managing virtual machines and servers, conducting OS verification and updates, overseeing disk drive expansion and management, increasing RAM memory, and configuring network cards using the XenServer Hypervisor.Key Responsibilities and Achievements:Formatted, installed, and configured servers, serving as a Linux system administrator and overseeing kernel scripts.Managed web pages and monitored the Zabbix system to ensure operational stability and efficiency.Contributed to server security and integrity through proactive event analysis and implementation of risk mitigation measures.Efficiently registered and classified tickets, monitoring the entire lifecycle to ensure user satisfaction.

Graduate Course, Threat Intel And Hunting

Graduação, Redes De Computadores