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    Palanikumar Annamalai

    Secure architecture.
    Practical engineering.

    I design, secure and troubleshoot Microsoft cloud and hybrid environments—from identity and messaging to infrastructure and security operations. I turn complex problems into practical guidance, tools and training.

    Based in Doha, Qatar · Experience across India, UAE, Ireland and Qatar

    Portrait of Palanikumar Annamalai

    Selected work

    Tools, guidance and practical learning

    Community tool · Public beta

    ConfigReview

    A read-only assessment tool for Microsoft cloud and hybrid configuration. Collect evidence, review findings and plan the next step.

    Explore ConfigReview

    Review supported workloads, data handling and beta limitations before connecting a tenant.

    ConfigReviewSample workspace
    ConfigReview sample workspace: a fictional Contoso assessment showing evidence status, unknown checks and prioritised findings.
    • Read-onlyInspect configuration
    • Evidence firstReview what was collected
    • PrioritisedDecide what to fix
    Actual product preview using fictional sample data. Sample counts are not claims about a live environment.

    Latest technical writing

    From the problem to the evidence

    All technical articles →

    Expertise

    Connected systems. Clear responsibilities.

    Windows Server estates, clusters and software-defined storage, and how they extend into Azure and Azure Local.

    • Windows Server
    • Active Directory
    • Failover Clustering

    From Active Directory to Microsoft Entra ID: hybrid identity, authentication, Conditional Access and privileged access.

    • Microsoft Entra ID
    • Hybrid identity
    • Conditional Access

    Exchange since 5.5: on-premises generations, Exchange hybrid, Exchange Online and the Microsoft 365 around it.

    • Exchange Server
    • Exchange hybrid
    • Exchange Online

    Security operations, identity security and data governance, built on Zero Trust principles rather than bolted on.

    • Microsoft Defender
    • Microsoft Sentinel
    • Microsoft Purview

    PowerShell and Microsoft Graph for the repeatable work, and labs, scripts and training so others can do it too.

    • PowerShell
    • Microsoft Graph
    • Labs and scripts
    Explore the Zero Trust architecture

    Breaking the attack chain

    Verify explicitly, use least privilege and assume breach. These principles connect identity, devices, applications, data, infrastructure and networks.

    Read security guidance →

    Verify explicitly

    Evaluate identity, device and access context.

    Use least privilege

    Limit access to the resources and time needed.

    Assume breach

    Segment access, detect threats and prepare to respond.

    Identity and device context, explicit policy decisions, segmented resources and continuous feedback. A conceptual Zero Trust model, with the principles kept as readable website text. Microsoft’s Zero Trust guidance.

    Career progression

    Built from the infrastructure up

    Explore my career →
    1. 01 · Infrastructure

      Understand the foundations

      Windows Server, Active Directory, Exchange, clustering and software-defined storage.

    2. 02 · Cloud and hybrid

      Connect the environments

      Azure, Microsoft 365 and hybrid services, including my former role as a Microsoft Cloud Solution Architect.

    3. 03 · Identity and security

      Secure the whole system

      Microsoft Entra ID, Defender, Sentinel and Purview, with automation and operational validation.

    Selected credentials

    Credentials aligned to my work

    Microsoft Certified Trainer · Public credential verification and technical training.

    All selected credentials

    Contact

    Connect

    I’m open to senior architecture, technical leadership, speaking and Microsoft training opportunities. For professional enquiries or questions about material published here, email is the best way to reach me. I also share shorter technical notes on LinkedIn.