AD Security Transformation Lead — Hybrid (Dublin)

Sigmar Recruitment; Dublin; Hybrid; EUR 70,000 - 95,000; Full time

Benefits offered by this job

Hybrid working

Contract role - 1 year

Office in Dublin

Job summary

Sigmar Recruitment is seeking an Active Directory Security Remediation Lead in Dublin for a 1-year contract. You will spearhead a high-impact security transformation, remediating critical AD and identity risks within a large enterprise.

You will collaborate with senior architects, project managers, and infrastructure specialists to strengthen cyber security posture, expand expertise in Kerberos, PAM, and governance, and deliver measurable security improvements in a hybrid work environment.

Qualifications

• Strong hands-on experience administering and securing Active Directory in large enterprises.
• Expertise in AD security remediation, hardening, privilege reduction and certificate-based authentication.
• Deep knowledge of Kerberos authentication, delegation models, SPNs and privileged access management.
• Experience coordinating security remediation programmes within production environments, including change and risk management.
• Excellent communication and stakeholder management with senior leadership and clients.

Responsibilities

• Lead remediation initiatives, remediating critical Active Directory and identity security risks.
• Lead complex remediation initiatives alongside senior architects, project managers, and infrastructure experts to improve the customer’s cyber security posture.
• Expand expertise across identity and privileged access technologies: AD Security Hardening, AD CS, PAM, Kerberos, gMSA, Delegation Controls, and enterprise governance.

Skills

Active Directory administration

Identity security remediation

Kerberos, delegation, SPNs

Privileged access management

Stakeholder management

Job description

Sigmar Recruitment is seeking an Active Directory Security Remediation Lead in Dublin for a 1-year contract. You will spearhead a high-impact security transformation, remediating critical AD and identity risks within a large enterprise.

You will collaborate with senior architects, project managers, and infrastructure specialists to strengthen cyber security posture, expand expertise in Kerberos, PAM, and governance, and deliver measurable security improvements in a hybrid work environment.