TEKsystems
Security Engineer
TEKsystemsPoland1 day ago
ContractRemote FriendlyInformation Technology

Freelance Microsoft / Active Directory Security Engineer (m/f/d)


Location: Flexible / remote

Employment Type: Full-time

Contract: B2B


We are seeking a highly skilled Microsoft / Active Directory Security Engineer (m/f/d) to join our security engineering function. In this role, you will design, implement, and maintain advanced security controls across cloud and hybrid environments, ensuring strong identity protection and platform resilience.


🔎 What You’ll Do

  • Design and implement digital security controls to protect identities, data, and access across cloud and hybrid infrastructures.
  • Provide expert guidance on Office 365 and Azure security, including:
  • Azure Active Directory
  • Cloud App Security
  • Azure Information Protection
  • Information Rights Management
  • Data Loss Prevention
  • Intune (MDM & Conditional Access)
  • Multi-Factor Authentication & Single Sign-On
  • Microsoft Enterprise Mobility + Security
  • Configure and manage Azure AD, Microsoft/Office 365 tenants, ATP solutions, Intune, authentication systems, identity management, and DLP frameworks.
  • Troubleshoot and support security incidents, contributing to rapid identification and resolution.


🎓 What You Bring

  • Deep expertise in Microsoft Active Directory and related technologies (Group Policy, Kerberos, DNS, DHCP).
  • Proven hands-on experience with Azure AD, Office 365, tenant-wide configurations, ATP products, Intune, authentication, identity management, and DLP.
  • Proficiency with PowerShell scripting.
  • Strong customer service mindset with a solution-oriented approach.
  • Excellent analytical and problem-solving abilities.
  • Strong English communication skills (written & spoken).
  • Minimum 2 years of experience with Office 365 security features.


🛡️ Key Engagement Areas

You will support and execute critical activities such as:

  • Account Analysis: Monitoring user accounts for suspicious or anomalous behavior.
  • Password Reset Operations: Enforcing secure tenant-wide password resets.
  • Kerberos Reset: Revoking compromised tickets and preventing credential misuse.
  • Domain Controller Hardening: Supporting clean builds and replication validation.
  • Active Directory Structure Review: Assessing GPOs, OU hierarchies, gMSA usage, site topology, and overall AD health.
  • AD Rebuild (if required): Supporting domain or forest rebuilds following severe compromise.

Key Skills

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