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I am an experienced IT Infrastructure Engineer with 15+ years of hands-on expertise in designing, deploying, and managing enterprise IT environments. My specialization includes Windows Server, Active Directory, Hybrid AD with Entra ID, Microsoft 365, Exchange Server, Azure, AWS, and Virtualization. I help businesses modernize their IT infrastructure end-to-end — from on-premises servers and virtualization platforms (VMware/Hyper-V) to hybrid cloud integrations, Azure AD/Entra ID deployments, and modern desktop architecture. I focus on delivering secure, scalable, and resilient hybrid IT solutions that enhance productivity, security, and compliance while supporting business growth. Technical Expertise 🗄️ Windows Server & Active Directory ✅ Install, configure, and manage Windows Server 2003–2025 ✅ DFS, DNS, DHCP, RDS, IIS, RAID, NAS ✅ Group Policy Objects (GPOs), AD replication, backup & restore ✅ Active Directory migrations & consolidations (domains/forests) ✅ Identity Services: ADFS, Azure SSO, MFA, SAML, OAuth, OpenID ✅ AD Security Auditing: BloodHound/SharpHound, Kerberoasting, ZeroLogon ☁️ Microsoft 365 & Cloud Services ✅ Administration of Exchange Online, SharePoint, OneDrive, Teams ✅ Domain & DNS setup: SPF, DKIM, DMARC, MX ✅ Security & Compliance: Defender for Endpoint & O365, DLP, Conditional Access, Sensitivity Labels, Azure Security Policies ✅ Tenant-to-tenant migrations: BitTitan, CodeTwo, SkyKick ✅ Hybrid Deployments: Exchange + O365, ADFS, Azure AD/Entra ID Connect ✅ Modern Workplace Management: Intune, Autopilot, Co-management, Windows 10/11, Windows 365/Cloud PC 🏢 Virtualization & Cloud Platforms ✅ VMware: ESXi, vCenter, vMotion, DRS, HA, NSX, vSAN, vROps ✅ Hyper-V: deployment, migration, clustering, Azure Stack HCI ✅ Azure Virtual Machines | VM Scale Sets | Availability Sets & Zones | ARM Templates | NSGs | Azure Bastion | Load Balancer | Azure Monitor | Backup & Site Recovery | Automation & Auto-Scaling | Hybrid VM Integration | High Availability | Cost Optimization ✅ AWS: IAM, EC2, S3, CloudFormation, cloud migrations 🔒 Security & Vulnerability Management ✅ Penetration testing & vulnerability scanning (Nessus, Qualys, Kali Linux) ✅ Remediation of Windows & AD vulnerabilities (SMB, PrintNightmare, LDAP signing) ✅ Zero Trust Security implementation & Identity Governance ✅ Backup & disaster recovery (StorageCraft, NAS, SkyKick, Quest Recovery Manager, DRaaS) ⚡ Automation & RMM Tools ✅ PowerShell scripting & DSC automation ✅ Graph API & Microsoft 365 automation ✅ RMM tools: Intune, Datto RMM, ConnectWise, NinjaOne, ManageEngine ✅ Endpoint management, application deployment & compliance 📞 Collaboration & Messaging ✅ Teams Phone System & Direct Routing ✅ Exchange Hybrid Architecture & migrations ✅ PBX integration 🏆 Why Work With Me / Achievements / Key Results 🏅 Upwork Top-Rated Expert – recognized for delivering high-quality IT infrastructure and cloud solutions 🏅 Certified IT Infrastructure Expert – Microsoft, Azure, AWS, VMware, and Security certifications 🏅 23K+ hours worked – extensive hands-on experience with diverse enterprise projects 🏅 $400K+ earned – proven track record of client satisfaction and successful project delivery 🏅 Enterprise & Cloud Expertise – implemented hybrid AD, Azure, Microsoft 365, VMware, and AWS solutions for multiple organizations 💡 Online Consultation Available ⭐ Review your IT environment ⭐ Identify challenges & solutions ⭐ Create a custom step-by-step action plan 📅 Schedule your consultation directly on Upwork at your convenience. Whether you need full project delivery or expert guidance, I ensure your IT infrastructure is secure, efficient, and optimized for growth.

I help businesses design, migrate, secure, troubleshoot, and stabilize cloud and IT infrastructure across AWS, Azure, Windows, Linux, Microsoft 365, Google Workspace, VMware, and hybrid environments. I bring more than 18 years of hands-on enterprise infrastructure experience and hold the AWS Certified Solutions Architect – Associate certification. My focus is on dependable implementation, minimal disruption, clear communication, and practical documentation. How I can help: - AWS and Azure cloud infrastructure design, deployment, administration, and troubleshooting - Windows Server, Linux, Active Directory, Group Policy, DNS, and DHCP - Microsoft 365, Entra ID, Exchange Online, and Google Workspace administration - Infrastructure troubleshooting, root-cause analysis, and incident recovery - Cloud, server, application, website, and business email migrations - DNS, SSL/TLS, CDN, domain, and web-hosting configuration - SPF, DKIM, DMARC, MX, SMTP, mail flow, and email-delivery troubleshooting - VMware vSphere, storage, backup, disaster recovery, and access reviews - Terraform, infrastructure as code, PowerShell, Bash, and operational automation - Infrastructure assessments, technical documentation, and handover My cross-technology experience helps me trace problems across cloud, servers, identity, networking, DNS, email, storage, databases, and applications rather than treating each system in isolation. I support both new deployments and existing environments, including modernization, migrations, service recovery, performance troubleshooting, security improvements, and ongoing infrastructure support. I begin by understanding the current environment, technical dependencies, business risks, and required outcome. I then implement changes carefully, validate the completed work, and provide clear documentation and recommendations for ongoing operations. My aim is to deliver infrastructure that is stable, secure, well documented, and practical to operate.

Azure Cloud & Microsoft 365 Administrator | Intune | Azure | VMware | Windows Server | Microsoft Security Microsoft Cloud Administrator with hands-on experience designing, deploying, and managing secure Microsoft Azure and Microsoft 365 environments. I specialize in Azure infrastructure, Microsoft Intune, Entra ID, Azure Virtual Desktop (AVD), Windows Server administration, virtualization, endpoint management, and Microsoft security solutions. I have practical experience implementing enterprise IT solutions, managing hybrid cloud environments, securing endpoints, automating administrative tasks, and providing reliable infrastructure support for businesses of all sizes. My Expertise • Microsoft Azure Administration (AZ-104) • Azure Network Engineering (AZ-700) • Microsoft Intune (MD-102) • Microsoft 365 Administration • Microsoft Entra ID (Azure AD) • Azure Virtual Desktop (AVD) • Windows Server Administration (2012/2016/2019/2022) • VMware vSphere & vCenter Administration • Microsoft Defender & Endpoint Security • Microsoft Purview & Data Loss Prevention (DLP) • Microsoft Applied Skills – SC-5002 (Secure Microsoft 365 Workloads) • Azure Virtual Machines, VNets, NSGs, VPN Gateway, Load Balancer • Azure Backup & Azure Site Recovery • Veeam Backup & Replication • Group Policy (GPO) • PowerShell Automation • Exchange Online, SharePoint Online, OneDrive & Microsoft Teams • DNS, DHCP, Active Directory • Linux Administration • Azure Monitoring & Log Analytics Projects I've Worked On Designed and managed Azure infrastructure for production environments. Configured secure Azure networking using VNets, NSGs, VPN Gateways, Private Endpoints, and Load Balancers. Deployed and managed Azure Virtual Desktop (AVD) environments. Implemented Microsoft Intune policies for device compliance, BitLocker, USB restrictions, screen capture prevention, application management, and endpoint security. Configured Microsoft Purview DLP policies to protect sensitive organizational data. Managed Microsoft Defender security policies and endpoint protection. Administered VMware virtual infrastructure and Windows Server environments. Managed Azure Backup, Azure Site Recovery, and Veeam Backup & Replication for disaster recovery. Automated administrative tasks using PowerShell to improve operational efficiency. Provided L2/L3 technical support, troubleshooting, monitoring, and infrastructure optimization. I focus on delivering secure, scalable, and reliable cloud solutions while following Microsoft best practices. Whether you need Azure administration, Microsoft 365 management, Intune deployment, virtualization, security hardening, or infrastructure support, I'm committed to providing high-quality solutions with clear communication and dependable service. CLOUD CERTIFICATION AZ-104: Microsoft Certified Azure Administrator Associate MD-102: Microsoft 365 Certified: Endpoint Administrator Associate AZ-900: Microsoft Certified Azure Fundamentals MS-900: Microsoft 365 Certified Fundamentals AZ-140: Microsoft Certified: Azure Virtual Desktop Specialty (In Progress) 🚀 Why clients hire me ✔ Strong **Azure networking & security** mindset ✔ Real-world **production experience**, not just theory ✔ Clear communication and ownership of tasks ✔ Solutions designed for **performance, reliability, and scalability** If you’re looking for an Azure Cloud Specialist who understands networking, identity, and enterprise workloads, I can help you build and maintain a secure, high-performing environment. 👉 **Invite me to your job or send a message to get started.**

I am an ex-Microsoft employee with extensive experience using Microsoft products. I am certified in Microsoft Office 365, GCP, AWS, and Azure. In the areas of Hyper and Azure, I have been recognised as a Microsoft Most Valuable Professional. I cover the architecture, security, administration, and migration of all three major clouds: Azure, AWS, and GCP. Contact me for a consultation, and let's transform your IT dreams into reality. Your upcoming projects deserve nothing but the best. Don't hesitate to reach out to me anytime! * Top-rated Azure, VMware, DevOps Engineer in Upwork * 15+ years as an IT Professional * 10+ years as Cloud Expert, Paas and SaaS Architect * Consistently in the top 20 Freelancers in UpWork and other freelance sites * Executed around 100+ Projects, 65+ Migrations, 20+ Clients In addition to expertise in cloud infrastructure, the field includes proficiency with Windows Server (2003-2016), Microsoft Active Directory, Hyper-V Private Cloud, IIS, System Center, and SQL. Microsoft CAF | Migration & Integration | Azure Governance Framework | Cloud Accelerator (CA), Cloud Infrastructure Setup | OnPrem to Cloud migration | Cloud Performance Tuning | Optimization Cloud Cost Optimization | Infrastructure As Code Infrastructure | Azure, AWS, GCP, | DevOps | Virtualization ( Vmware | Citrix | Windows, Microsoft Hyper-V ) | Hub-and-Spoke network | Azure policies, Key Vaults, RBAC, ASR, | ExpressRoute, Azure Monitoring, Security Centre, Application Gateway, Azure App Services | DevOps CI/CD Setup | Azure AKS | VDI | Veeam Backups | Hybrid Environment Architecture | Windows Infrastructure Design | Security Azure Recovery Services | Azure Backup Vault | OS (Server windows 2003,08,12,16) | Hyper-V 2008 r2, 2012,2016| SCVMM | Windows RDS2012 and 2016 | Citrix XenApp I have certificates: • Microsoft Certified: Azure Administrator Associate • Microsoft® Certified Solutions Expert: Cloud Platform and Infrastructure • Microsoft® Certified Solutions Associate: Cloud Platform • Microsoft® Certified Solutions Expert: Productivity • Microsoft® Certified Solutions Expert: Data Management and Analytics • Microsoft® Certified Solutions Associate: Windows Server 2016 • Microsoft® Certified Solutions Associate: Windows 10 • Microsoft Specialist: Configuring Windows Devices • Microsoft Specialist: Architecting Microsoft Azure Solutions • Microsoft Certified Solutions Developer: Azure Solutions Architect • Microsoft Specialist: Developing Microsoft Azure Solutions • Microsoft® Certified Solutions Expert: Data Platform • Microsoft Specialist: Implementing Microsoft Azure Infrastructure Solutions • Microsoft® Certified Solutions Associate: Office 365 • Microsoft® Certified Solutions Expert: Private Cloud • Microsoft® Certified Solutions Expert: Messaging • Microsoft® Certified Solutions Associate: SQL Server 2012/2014 • Microsoft® Certified Solutions Associate: Windows Server 2012 • Microsoft® Certified Solutions Expert: Server Infrastructure • Microsoft® Certified IT Professional: Enterprise Administrator on Windows Server 2008 • Microsoft® Certified Solutions Associate: Windows Server 2008 • Microsoft® Certified Technology Specialist: Windows Server 2008 Applications • Microsoft® Certified Technology Specialist: Windows Server 2008 Network • Microsoft® Certified Technology Specialist: Windows Server 2008 Active Directory • Microsoft® Certified Technology Specialist: Microsoft Exchange Server 2010

Technology should make your work easier, not harder. I help teams cut through IT headaches with clear solutions and dependable support, backed by 10+ years of hands‑on experience in Microsoft 365 and cloud platforms. I specialize in supporting startups and small teams who don’t have a full-time IT department. Whether it’s troubleshooting, supporting, or migrating to the cloud, I provide solutions that keep costs predictable and downtime minimal. Clients appreciate my clear communication and proactive approach — I don’t just fix problems, I help prevent them. I’m certified in AZ‑104 (Azure Administrator), MS‑102 (Microsoft 365 Administrator), and MCP (Microsoft Certified Professional), which means I bring both proven technical expertise and a client-first mindset to every project. If you’re looking for dependable IT support without the overhead, I’d be glad to help.

✅ ABOUT ME: I am a Professional Full Time Freelancer. I have 9+ years of experience working on Windows/Linux server administration, CICD Devops ,AWS, Azure, windows/Linux troubleshooting, HyperV, proxmox servers, DNS records mapping, IIS, Domains and DNS records management, active directory, web server, webhosting, databases administrations and Mail server implementations, administrations for the mail services MS Office365, Gsuite, Zimbara and postfix . ✅ WHY ME? • Full-time Professional – I work on Upwork as a full-time freelancer. I take every project seriously and I am highly professional. • Highly responsive – I’ll always get back to you in less than 02 hours. • 100% Client satisfaction – I provide revisions and modifications even after our contract ends. • I provide accurate solutions and just as important, I can guide you to future prospects and put your project on the right track. • Good communication skills – You will find me very friendly to talk to. ========================================= #Windows Servers - clients #Linux Server - clients #Web servers - IIS, Apache, XAMPP, Nginx and Tomcat #Database Servers - MSSQL, ORACLE, MYSQL, MongoDB #Webhosting tools- Plesk, cPanel and CWP #Cloud services providers - AWS, Azure, GCP, Digital Ocean, World stream, OVH Cloud, Hetzner and Hosting raja #Hosting providers - Hostinger, Bluehost, Namecheap, Godaddy, Bigrock and Hostgator #Active Directory - setup, users creation, Centralized Management, policy creation and enhanced Security #Troubleshooting - L1, L2 Tools used ============== Github, SVN IIS,Apache,Tomcat,Nginx , Apache Kafka and Wordpress SSH, RDP, VNC, Anydesk, Splashtop and screen connect Mobaxterm,Toad,SSMS and Workbench Plesk,WHM,Cpanel Active Directory, IAM Servicenow, Redmine, Microsoft Teams and Slack Previous Clients Feedback: 1- "Karthik was an exceptional Upworker to deal with. He was responsive, communicative, knowledgeable and proactive at solving my urgent technical issue (my businesses website was down for an unknown reason) and I wouldn't hesitate to recommend him to anyone else seeking an excellent technical support specialist. Thank you Karthik!" 2- "Karthik went above and beyond to progress with a very difficult issue in a very short period of time. He is kind, hard-working, and knowledgeable." 3- "I recently had the pleasure of working with "Karthik Raja" on installing PMB Software project, and I must say it was an outstanding experience from start to finish. I highly recommend "Karthik Raja" to anyone seeking top-notch freelancing services." 4- "he provides ideas to solve our problems he is a best gem have ever met. He focused only in customer satisfaction. no negative reviews." So why wait? Just invite me to your job on Upwork so we can discuss how to make your project a success. Let’s work together and get it done!! Thanks, Karthik