Security & Infrastructure Specialist (Active Directory & Entra ID)

Location: Dublin City Centre (Hybrid - 3 days on site)

Type: Permanent | Full-time

About the Role

We are representing a prestigious global organisation at the forefront of technological innovation within the financial services sector. Our client is seeking an accomplished IT Security & Infrastructure Specialist to join their team in Dublin.

This individual will play a critical role in the security and integrity of enterprise systems, with a primary focus on Active Directory (AD) and Entra ID. The successful candidate will collaborate with global teams to implement robust security measures, ensure timely remediation of vulnerabilities, and contribute to the ongoing enhancement of the organisation’s security posture.

This is an excellent opportunity for a seasoned IT professional to contribute to a forward-thinking, technology-driven organisation recognised for its industry-leading performance.

Key Responsibilities

• Strengthen and secure enterprise systems, with particular focus on Active Directory and Entra ID
• Remediate vulnerabilities across systems and platforms, ensuring adherence to service level agreements
• Collaborate with global IT teams, platform owners, and security stakeholders to address identified risks
• Monitor, track, and report on vulnerability management, presenting findings to senior stakeholders
• Stay abreast of emerging threats, industry best practices, and security technologies
• Support the management of Azure infrastructure security, as well as related enterprise technologies such as GPO, Intune, and PKI
• Contribute to the development and refinement of security processes and frameworks

Essential Skills and Knowledge:

• Deep technical expertise in Microsoft Identity Services (Active Directory, Entra ID)
• Strong understanding of Microsoft Enterprise Infrastructure (GPO, Intune, Azure)
• Practical experience with AD Hardening, Security Remediation, and management of high-level domain permissions (e.g., Domain Administrator)
• Familiarity with security-relevant tools such as BloodHound (or equivalents)
• Solid understanding of technology interdependence and its impact on enterprise security
• Proven ability to produce and deliver high-quality executive-level reports

Qualifications and Experience:

• Relevant Microsoft certifications (highly desirable)
• Degree in a relevant discipline (preferred)
• Demonstrated experience working within a complex enterprise environment
• Strong communication, collaboration, and stakeholder management skills
• 
  

Why Apply?

This position offers an exciting opportunity to work alongside industry-leading professionals within a highly collaborative and innovative environment. The role provides exposure to cutting-edge technologies, meaningful project work, and the chance to contribute to a global organisation that delivers critical services to businesses and communities worldwide.

For further details or to express your interest, please submit your CV via the application link. We look forward to hearing from you.