Senior Lead Directory Services Engineer
Employment Information
Job Description
Lead Directory Services Engineer responsible for directory infrastructure across on-premise, hybrid, and cloud platforms at NBCUniversal. Ensuring uptime, security, and modernization of identity platforms.
Responsibilities:
- Lead and advance enterprise directory infrastructure across on-premise, hybrid, and cloud environments
- Oversee Microsoft Active Directory, Entra ID/Azure AD, LDAP directories, Ping Directory, and RadiantOne VDS
- Ensure uptime, security, replication integrity, and modernization of identity platforms
- Design, secure, and maintain Active Directory, Entra ID/Azure AD, LDAP, Ping Directory, and RadiantOne VDS
- Manage domain controllers, server builds, storage integration, replication roles, and monitoring
- Oversee DNS/DHCP integration, site topology, failover, and global uptime
- Implement forest/domain architecture, OU models, replication topology, and delegated access
- Apply Tier 0 protections, MFA integration, privileged access separation, and credential hardening
- Lead Group Policy design and enforcement for security baselines, login policies, TLS/LDAPS, firewall controls, encryption, and device posture
- Oversee provisioning and synchronization of users, groups, service accounts, and privileged identities
- Harden servers and VMs with patch baselines, encryption, EDR/XDR, LSASS protection, PAWs, and conditional access
- Integrate directory services with IT, IAM/PAM platforms, PKI, authentication systems, and enterprise applications
- Lead cloud-native directory strategies, domain consolidation, and migration initiatives
Requirements:
- 5+ years in a senior or lead role in IAM, directory services, security engineering, or infrastructure security
- Expert-level experience with AD domain controllers, replication, DNS/DHCP, FSMO roles, and site topology
- Advanced proficiency with Entra ID/Azure AD, Azure AD Connect, federation, and synchronization
- Strong LDAP knowledge, including schema modifications, Ping Directory, and RadiantOne VDS
- OS security hardening across Windows Server, Linux/Unix, and mixed enterprise platforms
- Strong networking fundamentals (VLANs, segmentation, firewalls, routing, VPN/site links)
- Experience designing and managing Group Policies at scale
- Demonstrated leadership in strategic programs or enterprise-scale transformations
- Bachelor’s degree in IT, Computer Science, Cybersecurity, or equivalent experience
Benefits:
- Medical insurance
- Dental insurance
- Vision insurance
- 401(k)
- Paid leave
- Tuition reimbursement
- Variety of other discounts and perks
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