Rafael M.

Full-stack Product Engineer

IT Security Specialist
1/1/2023 - Present

Developed expertise in cybersecurity practices, with a focus on vulnerability assessment, penetration testing, and incident response. Leveraged advanced tools such as Nessus, Metasploit, and Wireshark to identify and mitigate security risks. Designed and implemented comprehensive security architectures using frameworks like NIST and ISO 27001. Demonstrated proficiency in configuring and managing SIEM systems, specifically Splunk and QRadar, to monitor and analyze security events in real-time. Implemented robust encryption protocols and key management systems, while ensuring secure access via two-factor authentication and SSL/TLS. Regularly conducted network security audits, firewall configuration, and intrusion detection system tuning using tools like Snort and Suricata. Engaged in collaborative efforts for security policy development and conducted training sessions for staff to enhance organizational security awareness.

Network, Infrastructure, and Security Analyst
8/1/2021 - 12/1/2022

Specialized in the implementation, management, and troubleshooting of Fortinet, NSX, and Checkpoint firewalls. Developed strong administrative skills in managing and maintaining Kaspersky antivirus systems. Demonstrated technical expertise in network security and endpoint protection, ensuring robust defenses against cyber threats.

Network Analyst
11/1/2019 - 8/1/2021

Gained expertise in the management and troubleshooting of Cisco switches, including both Layer 2 (L2) and Layer 3 (L3) configurations. Oversaw and maintained a VMWARE ESXI environment, ensuring optimal performance and reliability. Administered Windows servers, performing tasks such as configuration, monitoring, and maintenance to support various business operations.

Network and Data Communication Analyst
11/1/2016 - 10/1/2019

Cultivated expertise in monitoring and maintenance within Windows Server environments, including versions 2008 R2, 2012 R2, and 2016, utilizing administrative tools such as Active Directory, DNS Server, DHCP Server, GPO, and Event Viewer. Gained proficiency in maintaining and monitoring VMware Workstation Pro virtual environments. Spearheaded the implementation of WSUS for centralized control and management of Microsoft updates. Designed and executed a Wireless radio link using Intelbras APC MACH 5 technology, enabling a 1.8 KM communication link between access points. Implemented the Zabbix monitoring tool to achieve comprehensive monitoring of all network assets, facilitating proactive resolution of network and infrastructure issues.

Developed and maintained the OTRS ticketing system to streamline communication between clients and the company. Managed and monitored Fortigate 60D firewalls, and implemented VPN C2S, ensuring secure and reliable external user connections to the company's environment. Configured and administered NAS storage with RAID 10 for enhanced storage and redundancy. Oversaw corporate management of Kaspersky antivirus via the Kaspersky Security Center, providing centralized protection for physical and virtual endpoints.

Monitored telephony and PABX Central, and ensured thorough data backup by maintaining daily, weekly, and monthly routines to safeguard information's periodicity, security, and integrity.

Mid-Level IT Infrastructure Analyst
11/1/2014 - 4/1/2016

Developed extensive expertise in designing and maintaining Cat5 and Cat6 network cabling infrastructure. Managed the entire procurement process for computer equipment and supplies, ensuring cost-efficiency and timely delivery. Administered and controlled corporate data backups on LTO tapes utilizing the Data Protector backup tool, and managed backups using the EMC Networker backup system. Implemented, maintained, and managed Microsoft updates across company workstations through the WSUS administrative management tool. Directed the maintenance and updates of antivirus software using Symantec Endpoint Protection, ensuring secure systems via the management console. Undertook maintenance and installation of network infrastructure at multiple company branches, providing technical support across all branches distributed throughout Brazil.

IT Infrastructure Analyst
3/1/2007 - 11/1/2014

Developed technical expertise in support for both Windows and Linux environments, including proficiency in managing Office applications and specialized software for departments such as HR, Tax, and Finance. Acquired advanced skills in the installation and maintenance of graphic development software, specifically Corel Draw and Adobe suite applications like Photoshop, Illustrator, and Adobe Professional. Demonstrated competence in monitoring and maintaining Windows Server 2003 and 2008 environments, utilizing key administrative tools such as Active Directory, DHCP, DNS, and Group Policy Objects (GPO).

Efficiently handled the control and maintenance of corporate data backup routines employing LTO tapes and data protector software. Gained experience in the creation and maintenance of virtual machines within a Hyper-V environment. Managed general administration duties of IT service providers, coordinating and overseeing various projects aimed at updating and upgrading the technological infrastructure, including the deployment of microcomputers, notebooks, and printers.

Led network restructuring projects utilizing CAT5 and CAT6 cabling, and configured as well as monitored switches, UPS, routers, radio antennas, print servers, and other critical network assets.

B.S. (Bachelor of Science) at FATEC
2007 - 2011

Network Engineering at Cruzeiro do Sul
2021 - 2022

NSE4 at Fortinet
5/1/2023

Zabbix certified user at Zabbix Latam
1/1/2023

Ethical hacking foundation at Exin
10/1/2022

SC_900 - Microsoft Certified: Security, Compliance, and Identity Fundamentals at Microsoft
4/1/2022