Active Directory Administrator

Job description

**!!!** **We are hiring for on premise Active Directory with Azure AD !!!** **Location: Mumbai, Bangalore & Chennai** **Experience: 10+ years** **Notice period: Immediate to 60 days** **Primary Skills: On prem AD, Azure AD, Azure AD connect, ADFS & PKI** **Interested candidate can share their updated resume to jeffania.deny@atos.net** **Job Summary:** The successful candidate will design, implement, secure, and maintain identity and certificate-based authentication solutions across hybrid environments. **Key Responsibilities include:** Active Directory & PKI (AD CS): - Design, deploy, and manage Enterprise PKI infrastructure - Manage Root CA, Issuing CA, and Offline CA models- Troubleshoot PKI issues- Perform CA hardening, backup, and disaster recovery testing **NDES / SCEP:** - Deploy and manage NDES for device certificate enrollment- Integrate NDES with Intune, third-party MDMs, and network devices- Configure registration authority policies and security - Troubleshoot SCEP enrollment failures and renewal issues **Azure Entra ID (Azure AD):** - Manage hybrid identity environments (On-prem AD + Entra ID)- Configure Azure AD Connect / Cloud Sync, Seamless SSO, and Password Hash Sync- Implement identity security features such as Conditional Access, MFA, and Identity Protection - Support certificate-based authentication with Entra ID - Monitor sign-ins and security logs **ADFS (Active Directory Federation Services):** - Design and manage ADFS infrastructure- Configure claims-based authentication and relying party trusts- Manage ADFS certificates for service communication, token-signing, and token-decrypting - Troubleshoot authentication and federation issues - Plan and perform ADFS upgrades and migrations **Certifications:** - SC-300 (Identity & Access Administrator)- AZ-104 / AZ-305- Windows Server / Security certifications are preferred.