Senior System Engineer

In this role, you will be responsible for the architectural design, operational continuity, and evolution of the organization’s Identity and Collaboration platforms, including Active Directory, Windows DNS, Exchange Server (On-Prem & Online), Azure / Entra ID, and Google Workspace.

As a Senior Engineer, you will own hybrid identity architectures end-to-end, managing AD–Azure AD integrations, mail flow dependencies, and authentication flows at a system level. You will ensure high availability and security across Exchange environments (On-Prem, Hybrid, and Online) while deeply managing the impact of Windows DNS and core directory services on critical platforms.

Enterprise-scale AD architecture, multi-domain/forest designs, GPOs, delegation, and replication management.

AD-integrated DNS, forward/reverse zones, conditional forwarders, and advanced troubleshooting of DNS-related identity issues.

Exchange 2016/2019 architecture, DAG, mail flow, certificate management, and Hybrid Exchange scenarios.

Exchange Online tenant administration, mail flow rules, anti-spam/anti-phishing, DKIM/SPF/DMARC, and compliance policies.

Hybrid identity, Azure AD Connect, Conditional Access, MFA, RBAC, and identity auditing processes.

Tenant, user, group, and access management; Gmail routing, security policies, and AD/Azure AD integrations.

PowerShell and script-based automation; provisioning/de-provisioning and self-service implementations.

Strong technical ownership across incident, problem, and change management processes.

Advanced monitoring, root cause analysis, and performance optimization for identity and email services.