Senior Active Directory Security Remediation Specialist

IntelStack; Leinster; Hybrid; EUR 90,000 - 120,000; Full time

Job summary

IntelStack in Dublin is seeking a senior security professional to lead Active Directory security remediation within a large enterprise transformation. You will address critical AD vulnerabilities, reduce cyber risk, and strengthen resilience across global environments.

Working with security architects and engineers, you will govern AD CS, Kerberos, PAM, and hybrid identity, delivering remediation evidence and executive progress reporting while minimizing business disruption.

Qualifications

• Experience securing Active Directory in large enterprises.
• Knowledge of AD CS and certificate-based auth security.
• Experience with PAM and least-privilege design.
• Experience in production change and risk management.

Responsibilities

• Lead Active Directory security remediation across complex enterprise environments.
• Govern AD at Domain Admin and Enterprise Admin levels.
• Remediate identity-related vulnerabilities and privilege escalation risks.
• Review and harden AD CS, authentication, and delegation configurations.
• Manage privileged access controls, admin groups, and service accounts.
• Coordinate remediation across infrastructure, security, server, database and app teams.
• Plan, implement and govern production changes with minimal disruption.
• Produce remediation documentation and executive progress reports.
• Collaborate with security architects and stakeholders to drive outcomes.
• Support continuous improvement for identity security and cyber resilience.

Skills

Active Directory

AD security remediation

Kerberos authentication

Privileged Access Management

AD CS

Identity & Access Management

PAM governance

Security governance

Tools

CyberArk

BeyondTrust

Delinea

PingCastle

Job description

IntelStack in Dublin is seeking a senior security professional to lead Active Directory security remediation within a large enterprise transformation. You will address critical AD vulnerabilities, reduce cyber risk, and strengthen resilience across global environments.

Working with security architects and engineers, you will govern AD CS, Kerberos, PAM, and hybrid identity, delivering remediation evidence and executive progress reporting while minimizing business disruption.