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Marcos Júnior Email & Phone Number

Location: São Paulo, Brazil, Brazil 4 work roles 2 schools

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✓ Verified Jun 2026 3 data sources Profile completeness 86%

Current company

e-Safer

Role

Location

São Paulo, Brazil, Brazil

Company size

23 employees

Who is Marcos Júnior? Overview

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Quick answer

Marcos Júnior previously worked as Analista de soc at E-Safer and IT Analyst at Rsi Assessoria Crédito E Cobrança. Marcos Júnior holds Bachelor Of Technology (Btech), Computer Networks from Unicsul.

Company email context

Email format at e-Safer

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e-Safer

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Profile bio

About Marcos Júnior

• IT professional with experience in IT Support and Information Security, with knowledge in Operating Systems and Networks, including IDS, IPS, Firewall, Antivirus, Proxy, and protocols such as DHCP, DNS, SMB, HTTP, and FTP.• Experience in Scanning, Enumeration, Reconnaissance, and Vulnerability Exploitation, as well as manual and automated intrusion techniques.• Proficient in SQL language and Python programming, along with skills in tools like Kali Linux, Burp Suite, Gobuster, Dirb, SQLMAP, NMAP, and Metasploit.• Active participation in CTFs on platforms like TryHackMe, HackTheBox, PortSwigger, and Hacker101, demonstrating technical knowledge in Pentest, Ethical Hacking, and vulnerability analysis.• Familiarity with security tools such as IAM/PAM, SIEM, IPS/IDS, Antivirus Endpoint, EDR, DLP, WAF, AntiDDOS, Vulnerability Management, CSPM, CASB, Firewall, Proxy, and Webfilter, as well as skills in Application Control, Sniffer, and Vulnerability Scan.• Experience in Threat Monitoring and analysis of logs and incidents for quick detection and response to risk behaviors.• Knowledge in Network Security, including the configuration and administration of firewalls, IDS/IPS, and other protective devices.• Conducting Penetration Tests to identify and correct security flaws, as well as managing vulnerabilities and threats.• Familiarity with security standards and authentication protocols, along with knowledge of encryption and security methods.• Experience in databases and expertise in Cisco Switches, network segmentation, VLAN, ACL, LAN, WAN, VPN, and VOIP technologies.• Ability to analyze results and vulnerabilities stemming from vulnerability tests.

Current workplace

Marcos Júnior's current company

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E-Safer

barueri, sao paulo, brazil

Website

e-safer.com.br

Employees

23

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Company profile

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4 roles

Marcos Júnior work experience

A career timeline built from the work history available for this profile.

Analista De Soc

Current

E-Safer

São Paulo, Brasil

Nov 2023 - Present

It Analyst

Rsi Assessoria Crédito E Cobrança

São Paulo, Brazil

Creation and management of groups, folders, users, and permissions in the Windows Server Active Directory, as well as the management of VPNs and firewall on MikroTik equipment, in addition to configuring the proxy.
Creation of Group Policy Objects (GPOs) and registration of equipment in the IT management system (GLPI).
Monitoring equipment performance using the Zabbix tool for host and network equipment monitoring, performing hardware and software maintenance as needed.
Software installation, network management on MikroTik, and creation of users and extensions in the PBX tool.
Responsible for configuring antivirus, ensuring system protection against threats.
Evaluation of information system performance, configuration, and execution of corrective and preventive maintenance for software, hardware, and network infrastructure.

Jan 2023 - Oct 2023

It Support Intern

Rsi Assessoria Crédito E Cobrança

São Paulo, Brazil

Assistance in creating and managing groups, users, and permissions in the Windows Server Active Directory.
Assistance in creating and configuring Group Policy Objects (GPOs) in the Active Directory.
Assistance in monitoring equipment performance using the Zabbix tool, reporting any anomalies or issues found.
Providing support in hardware and software maintenance, including diagnosis and issue resolution.
Recording equipment details and updating information in the GLPI asset management system.
Handling user calls within the company, assisting them with technical problems and IT-related inquiries.

Sep 2021 - Dec 2022

It Intern

Hitcode Tecnologia

Creation of dashboards and charts in Power BI tool, using data from MySQL databases.
Execution of queries and modifications in MySQL and Oracle databases, performing tests on applications.
Key technologies used: Power BI, MySQL, and Oracle.

Apr 2019 - Jul 2019

Team & coworkers

Colleagues at e-Safer

Other employees you can reach at e-safer.com.br. View company contacts for 23 employees →

FS

Fagner Santos Silva Colleague at E-SaferSão Paulo, São Paulo, Brazil, Brazil View → RJ

Rodrigo Jorge Moura Colleague at E-SaferSão Paulo, São Paulo, Brazil, Brazil View → AN

Adib Nayaf Abdala Colleague at E-SaferSão Paulo, Brazil, Brazil View → RS

Rui Schoenberger Colleague at E-SaferBrazil, Brazil View → VS

Valdemir Soares Colleague at E-SaferBarueri, São Paulo, Brazil, Brazil View → EG

Elen Galera Colleague at E-SaferRio De Janeiro, Rio De Janeiro, Brazil, Brazil View → MA

Manuela Alves Colleague at E-SaferCarapicuíba, São Paulo, Brazil, Brazil View → MV

Muril Vieira Colleague at E-SaferBrazil, Brazil View → JR

Jose Roberto Giani Garcia Colleague at E-SaferSão Paulo, São Paulo, Brazil, Brazil View → LI

Luigi Ishii Colleague at E-SaferSão Paulo, Brazil, Brazil View →

2 education records

Marcos Júnior education

Bachelor Of Technology (Btech), Computer Networks

Unicsul

Bachelor Of Technology (Btech), Database Technology

Impacta Tecnologia

FAQ

Frequently asked questions about Marcos Júnior

Quick answers generated from the profile data available on this page.

What company does Marcos Júnior work for?

Marcos Júnior works for e-Safer.

What is Marcos Júnior's role at e-Safer?

Where is Marcos Júnior based?

Marcos Júnior is based in São Paulo, Brazil, Brazil while working with e-Safer.

What companies has Marcos Júnior worked for?

Marcos Júnior has worked for E-Safer, Rsi Assessoria Crédito E Cobrança, and Hitcode Tecnologia.

Who are Marcos Júnior's colleagues at e-Safer?

Marcos Júnior's colleagues at e-Safer include Fagner Santos Silva, Rodrigo Jorge Moura, Adib Nayaf Abdala, Rui Schoenberger, and Valdemir Soares.

How can I contact Marcos Júnior?

You can use AeroLeads to view verified contact signals for Marcos Júnior at e-Safer, including work email, phone, and LinkedIn data when available.

What schools did Marcos Júnior attend?

Marcos Júnior holds Bachelor Of Technology (Btech), Computer Networks from Unicsul.

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