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Tecnologias que transformam
Senior Windows Information Security Administrator
Location
Brazil
Posted
72 days ago
Salary
0
Seniority
Senior
Job Description
Senior Windows Information Security Administrator
Lanlink Informática Ltda.
• Configure and manage security policies on Windows operating systems, including GPOs (Group Policy Objects) and access controls; • Monitor event logs on Windows servers and workstations to identify suspicious or anomalous activity; • Apply patches and security updates to Windows systems according to established guidelines; • Configure and monitor multi-factor authentication (MFA) systems in Windows environments; • Implement hardening practices on Windows servers and workstations aligned with the organization's security standards; • Document security incidents related to the Windows environment and provide technical recommendations for mitigation; • Collaborate with internal teams to investigate incidents involving Windows systems; • Prepare technical reports on the security status of Windows systems and performance metrics for tools used; • Configure and maintain local firewalls and other protective tools on Windows systems; • Perform regular scans to detect vulnerabilities on Windows servers and workstations; • Evaluate new security tools and technologies specific to Windows environments and recommend adoption to the responsible team; • Perform integrity audits of critical files and registry systems in Windows environments; • Review the use of privileged accounts and segregation of duties in Windows systems during audits; • Implement and manage data encryption solutions in Windows systems, such as BitLocker, to protect sensitive information; • Evaluate and configure application control policies (application whitelisting/blacklisting) to prevent execution of unauthorized software; • Monitor and respond to security alerts generated by SIEM (Security Information and Event Management) tools specific to Windows environments; • Implement and monitor security policies to protect Active Directory, including analysis of delegated permissions and mitigation of attacks such as Kerberoasting and Pass-the-Hash; • Conduct forensic analysis on compromised Windows systems to identify attack vectors and impacts; • Design resilient and secure architectures for Active Directory infrastructures, including domain segregation, creation of isolated forests, and implementation of granular controls to minimize attack surfaces; • Create and maintain custom scripts (in PowerShell, Python or other languages) to automate tasks such as containment of compromised endpoints, disabling suspicious accounts, malware removal, among others; • Perform other activities related to information security and Windows environments as required by operations.
Job Requirements
- Bachelor's degree in Information Technology (IT) or a related field.
- Experience in information security or Windows environments. Experience must be demonstrated through a contractor (Pessoa Jurídica) contract or an official employment record (Carteira de Trabalho), both showing start and end dates for the activity.
- ITIL 4 training with a minimum duration of 12 (twelve) hours.
- Official ITIL 4 Foundation certification or higher.
- Hold at least two of the following certifications:
- ◦ Microsoft Certified: Information Security Administrator Associate;
- ◦ Microsoft Certified: Information Protection and Compliance Administrator Associate;
- ◦ Microsoft Certified: Security Operations Analyst Associate;
- ◦ Microsoft Certified: Identity and Access Administrator Associate;
- ◦ GIAC Certified Windows Security Administrator (GCWN).
Benefits
- Health insurance (Hapvida, Bradesco Saúde, or Unimed — depending on local availability);
- Dental plan (Hapvida Odonto or Bradesco Dental);
- Meal or food allowance (Alelo);
- Life insurance fully paid by Lanlink;
- Transportation allowance;
- Pharmacy discount program;
- Tuition discounts / university partnerships;
- Totalpass (fitness/wellness benefit);
- Internal learning platform;
- Welcome Baby kit;
- Moodar platform (therapy platform)
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