Security Engineer

onetowin cvba
Brussels, Belgium
5 days ago

Role details

Contract type
Temporary contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

Brussels, Belgium

Tech stack

Microsoft Active Directory
Software Documentation
Identity and Access Management
Microsoft Security Essentials
Windows Server
Powershell
Role-Based Access Control
Splunk

Job description

  • The mission covers all Active Directory forests and domains, as well as all processes and tools related to privileged access and identity governance.
  • Improve the PingCastle security score.
  • Support in selecting and Implementing new PAM Solution

Main purposes

  1. Active Directory Hardening
  • Assess and enhance the current security posture of Active Directory.
  • Identify and remediate key technical weaknesses detected by PingCastle.
  • Eliminate legacy components and protocols (e.g., Windows Server 2003/2008, DES-enabled accounts, NTLMv1, LM).
  • Implement secure authentication and password policies.
  • Review and clean up GPOs, apply least privilege principles, and align configurations with Microsoft security baselines.
  1. Privileged Access Management (PAM)
  • Implement a structured PAM framework.
  • Enforce the Principle of Least Privilege (PoLP) and Role-Based Privilege Assignment. Implement Access Isolation.
  • Establish Periodic Access Reviews (e.g., quarterly).
  • Define and implement an Authorization Process (standardized, auditable approval workflow).
  • Implement Just-in-Time (JIT) Access for temporary privilege elevation.
  • Enforce the Four-Eyes Principle for critical privileged actions.
  1. Documentation, Reporting, and Governance
  • Develop a detailed remediation and implementation roadmap (AD + PAM).
  • Document all technical actions (initial state, final configuration, scripts/tools used).
  • Deliver regular progress reports (weekly or bi-weekly).
  • Produce a final report summarizing actions, residual risks, and recommendations.

Collaboration: The expert will operate as part of the Security Team, collaborating closely with AD administrators, IAM specialists, and infrastructure engineers. (Presence required 3 days on site and 2 days remote).

Key Performance indicators

  • Achievement and improvement of the target PingCastle security score for Active Directory.
  • Successful and complete implementation and governance of the PAM framework components (e.g., PoLP, JIT, Four-Eyes Principle).
  • On-time delivery of AD/PAM remediation documentation and reports.
  • Contribution to the analysis and implementation of the Microsoft Tiering Model.

Requirements

  • Proven experience in Active Directory architecture, security, and hardening.
  • Strong expertise in Privileged Access Management (PAM) and Microsoft Tiering Model.
  • Proficiency with PowerShell, PingCastle, ADManager, and Splunk.
  • Familiarity with Privileged Access Workstations (PAWs), RBAC, and IAM integration.
  • Solid understanding of service account security and least privilege enforcement.

Soft Skills:

  • Strong collaboration skills within multidisciplinary teams.
  • High documentation standards and structured working approach.
  • Analytical mindset, attention to detail, and communication clarity.
  • Ability to lead or participate in workshops (RBAC, PAM, governance design).

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