Identity Platform Operations Specialist

Cognizant; Amsterdam; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Cognizant Netherlands is seeking a Platform Operations Expert to own enterprise identity and OS platforms, focusing on Active Directory, Windows Server, and Red Hat Enterprise Linux environments. Responsibilities include ensuring authentication services, cross-platform issue resolution, and safeguarding identity services essential to daily business operations.

The role covers AD replication health, Kerberos troubleshooting, GPO management, and cross-domain incident response, with a hybrid work

Qualifications

• Strong experience with enterprise identity and operating system operations.
• Advanced expertise in Active Directory replication, domain controllers, and FSMO roles.
• Deep understanding of Kerberos authentication, time skew, SPN management, and delegation.
• Hands-on with Group Policy, ADMX templates, and RSoP analysis.
• Solid experience with PKI (ADCS): CA hierarchy, templates, CRL/OCSP management.
• Strong knowledge of Windows Server services (AD DS, DNS, DHCP) and Linux integration (RHEL).
• Experience with PowerShell and Bash for automation and troubleshooting.

Responsibilities

• Monitor and resolve AD replication and domain controller health issues to ensure availability.
• Troubleshoot Kerberos authentication failures and related ticketing problems.
• Maintain SYSVOL integrity and manage GPO changes across environments.
• Respond to large-scale authentication outages and remediate cross-domain incidents.
• Diagnose and fix Windows Server and RHEL service failures and performance issues.
• Perform daily/weekly health checks across domain controllers, RHEL hosts, and PKI infrastructure.
• Maintain a dependency map covering DNS, VMware, AD, and backups.

Skills

Active Directory

Windows Server

Red Hat Enterprise Linux

PKI

Kerberos authentication

Group Policy

AD DS DNS DHCP

PowerShell scripting

Tools

ADCS

Job description

Cognizant Netherlands is seeking a Platform Operations Expert to own enterprise identity and OS platforms, focusing on Active Directory, Windows Server, and Red Hat Enterprise Linux environments. Responsibilities include ensuring authentication services, cross-platform issue resolution, and safeguarding identity services essential to daily business operations.

The role covers AD replication health, Kerberos troubleshooting, GPO management, and cross-domain incident response, with a hybrid work