Senior Security Infrastructure Engineer (IT Security Lead)

Job Responsibilities

• Lead the design, implementation, and governance of enterprise security infrastructure across Identity & Access Management (IAM), Microsoft Entra ID, Active Directory, PKI, Microsoft 365, and Azure Security.
• Define and enforce Zero Trust architecture, Conditional Access, identity governance, and privileged access management (CyberArk PAM/EPM).
• Manage Azure Landing Zone security, ExpressRoute, Azure Firewall, Private Link, and hybrid cloud security controls.
• Oversee Enterprise PKI, certificate lifecycle management, email security, encryption, and Microsoft Defender security solutions.
• Lead security architecture reviews, major incident investigations, vulnerability remediation, and security hardening initiatives.
• Drive compliance with security governance, ISMS, and audit requirements while mentoring L1-L3 engineers and leading technical security projects.

Requirements

• 9-12 years of experience in IT Infrastructure Security, IAM, and Cloud Security.
• Strong hands-on experience with Microsoft Entra ID, Active Directory, ADFS, Azure AD Connect, Azure AD B2C, Microsoft Identity Manager (MIM), and CyberArk PAM/EPM.
• Expertise in Azure Security, Zero Trust Architecture, Conditional Access, Microsoft 365 Security, PKI, and certificate lifecycle management.
• Experience with Microsoft Defender, Azure Monitor, Log Analytics, and enterprise security governance.
• Strong leadership, stakeholder management, troubleshooting, and documentation skills.

Preferred Certifications

• CISSP
• Microsoft Certified: Cybersecurity Architect Expert (SC-100)
• Microsoft Certified: Azure Security Engineer Associate (AZ-500)
• Microsoft Certified: Identity and Access Administrator Associate (SC-300)

Hashtags

#CyberSecurity #ITSecurity #IAM #MicrosoftEntra #AzureSecurity #ActiveDirectory #ZeroTrust #CyberArk #PKI #Microsoft365 #CloudSecurity #IdentityManagement #Azure #CISSP