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I have 6+ years of experience in the IT Industry with excellent knowledge and skills in server administration, Cpanel, DNS, nameservers, email account setup, email deliverability, email marketing, Google Suite Administrator, Multiple Email Account Management, Website Migration, Virtual Assistant, Microsoft Outlook, Google Suite, DNS, Email Marketing, Data Migration, Internet Marketing Email & Newsletter, Email Deliverability, Email Campaign Setup, Email Security, Email Marketing Strategy, SendGrid, Email Support, Office 365, Email Communication, Multiple Email Inbox Handling, Emails & Newsletters. My main goal is to keep my clients happy with my services. Skills and others: - SSH/Terminal/Shell - DNS and DNS records - Mail deliverability (DNS, SPF, DKIM, DMARC...) - Migrations (Sites, emails, databases) - Emails - SPAM - Security and Malware Cleanup. - VMWare - Hyper-V - IPTables - Firewall - UFW - Firewall - firewall-cmd - VPS/Virtual Machines - Dedicated Servers - SSL Certificates (Installation and settings) - WebServers (Apache, LiteSpeed, Nginx, IIS) - Databases (MySQL, SQL Server, MariaDB) - CloudLinux I can adapt to most jobs, if you have a problem or request about something that I do not know, I am passionate about learning and solving problems that are new to me.

CERTIFICATIONS: AZ-104: Microsoft Certified Azure Administrator Associate AZ-140: Microsoft Certified: Azure Virtual Desktop Specialty (In Progress) AZ-900: Microsoft Certified Azure Fundamentals MS-900: Microsoft 365 Certified Fundamentals 💻 System & Cloud Administrator | Windows, Linux, VMware & Microsoft 365 I am an experienced System Administrator with strong expertise in Windows Server, Linux, and VMware administration, helping businesses build secure, reliable, and scalable IT environments. I also hold Microsoft Azure Administrator, Fundamentals and Microsoft 365 Fundamentals certifications, which back my ability to manage modern cloud infrastructures effectively. ✅ What I bring to the table: Administration and optimization of Windows & Linux servers VMware vSphere / vCenter management, deployment & troubleshooting Active Directory, Group Policy, and Identity Management Azure & Microsoft 365 configuration, migration, and support Backup, recovery, and system security best practices --------------------------------------------------------------------------------------------------------------------------------- PROFILE: Azure Network Engineer | Cloud Engineering 💼 Azure Cloud Specialist | Azure Networking | AVD | VMware | Microsoft 365 | 💼Azure Network & Cloud Specialist | AZ-700 Focus | Enterprise & Hybrid Environments I am a System & Cloud Administrator specializing in Microsoft Azure, with strong hands-on experience in Azure networking, Azure Virtual Desktop (AVD), Microsoft 365, VMware, and hybrid environments. I help businesses design, secure, and operate scalable cloud infrastructures, with a strong focus on network architecture, performance, and security. 🔹 Azure & Cloud Expertise **Azure Compute – Virtual Machines, VM Scale Sets, App Services **Azure Storage – Blob Storage, Azure Files, Managed Disks **Azure Networking (Core Focus) * * VNets & Subnets * * NSGs & UDRs * * Hub-Spoke architecture & Azure Landing Zones * * Load Balancers (L4/L7), Application Gateway (WAF) * * Azure Virtual WAN, Azure Firewall, Azure Front Door * * VPN Gateway & ExpressRoute * * Service Endpoints, Private Link & Private Endpoints * * Azure Load Balancer and Azure Traffic Manager * **Monitoring & Security** – Azure Monitor, Log Analytics, Key Vault, Defender for Cloud 🖥️ IAM Specialist – (Azure Entra ID Focus) * Azure Entra ID (formerly Azure AD) * Have experience in Design/Development in IAM * Conditional Access, MFA, SSO, Identity Governance * Privileged Identity Management (PIM) * Integration with SaaS apps and federation protocols (SAML, OAuth, OpenID) 🖥️ Azure Virtual Desktop (AVD) * Host pool design & deployment * FSLogix profile configuration * Scaling plans & session optimization * Secure access using Conditional Access & MFA 🏢 Hybrid & Enterprise Infrastructure * Windows Server 2012–2022 (AD, DNS, DHCP, GPO) * Linux (Ubuntu, Debian) * Microsoft Entra ID & Entra ID Connect * Microsoft 365 (Exchange Online, SharePoint, OneDrive, Teams) * VMware vSphere / vCenter (HA, DRS, templates, snapshots) 🔄 Backup, DR & Automation * Azure Backup & Azure Site Recovery * Veeam Backup & Replication (VBR) * PowerShell, Azure CLI, ARM Templates, Bicep 🎓 Certifications * **AZ-104** – Microsoft Azure Administrator Associate * **AZ-900** – Azure Fundamentals * **MS-900** – Microsoft 365 Fundamentals * **AZ-140** – Azure Virtual Desktop Specialty (In Progress) * **AZ-700** – Azure Network Engineer Associate (Pursuing) 🚀 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.**

Freelancer, having 10+ years of experience as a Linux/Windows System Administrator, Devops and Cloud Engineer. I am well experienced in System Administration, so including but not limited to: Artificial Intelligence(AI): Installation of python, pip, tensorflow and pytorch Building with CUDA(NIVIDIA GPU)/ROCM (AMD GPU) support. MongoDB Replicaset on multi-node docker container. PostgreSQL High Availability with multi-node Docker and Keepalived Postgresql cluster, high availability, Load balancing. Master-master Replication. GlusterFS Replication and Geo-replication. Mail Server: Zimbra, postfix, sendmail, PowerMTA Web Server: Apache, Tomcat, Nginx Scripting: shell scripting Control Panel: Plesk, WHM, Cpanel, Webmin, Virtualmin Virtualization: KVM, VMware, Citrix Xen Server, VMware Esxi, Proxmox, Advanced KVM command-line Security Compliance: PCI-DSS, DISA STIGs. Devops Tools: Docker, Docker-compose, Jenkins, GitHub,Vagrant, Vagrant with Docker as provider , Ansible, Foreman, Docker Swarm Network: Router configuration of cisco router, modem. IP subnetting. Database: Mysql, Postgresql, Oracle, MS-SQL Accounting: Tally 6.3, Tally ERP 9 on Linux Operating System: Debian-{8,9,10}, Centos-{3,4,5,6,7}, Ubuntu-{12,14,16,18,20.04,22.04}, Windows server -{2003, 2008, 2012, 2016, 2019,2022} Private cloud: Eucalyptus (Ubuntu Enterprise cloud), OpenNebula Cloud: AWS, Gcloud, Azure create VPC, public-private subnet, route table, Internet gateway, network acl, amazon ec2 instance Migration, updation. ERP: ERPnext Multitenant, ERPnext in Google Cloud K8s cluster with CEPH storage Log Server: Solarwind Kiwi syslog Domain Server: Windows AD, Samba4 Server provisioning and PXE installation for Linux and Windows. Source code Compilation and Cross compilation for various architecture. Server Administration, Webhosting, Web migration, Web and DB performance tuning, SSL Certificate Installation, Shell scripting, Deployment of various software and server, Mail server etc. Linux Distros: Kiosk live image. FFMPEG, v4l2loopback, Proxy: Haproxy

I help businesses manage, secure, and troubleshoot Microsoft 365, Intune, Entra ID, Exchange Online, Outlook, SharePoint, OneDrive, and endpoint environments with a focus on stable operations, secure access, and fast issue resolution. I currently serve as an IT Administrator supporting India and USA operations, handling user lifecycle management, device compliance, email administration, identity and access control, server support, and security operations. My recent Upwork work includes Microsoft Intune device management, Microsoft 365 administration, GoDaddy+ Microsoft 365 DNS setup, shared mailbox troubleshooting, Exchange Online, Outlook support, SMTP authentication, SPF, DKIM, DMARC, and Microsoft 365 consultation work. What I can help you with: • Microsoft 365 Administration User management, licensing, admin roles, Exchange Online, Teams, OneDrive, SharePoint, and tenant setup or troubleshooting. • Exchange Online & Outlook Mailbox issues, shared mailboxes, Outlook errors, SMTP authentication, mail flow, email access problems, and practical Exchange Online administration. • Intune & Device Management Windows device enrollment, compliance policies, app deployment, endpoint security configuration, and device troubleshooting. • Entra ID & Access Control MFA, Security Defaults, Conditional Access review, SSO, user lifecycle management, SCIM provisioning, and access troubleshooting. • Email & DNS Configuration MX, SPF, DKIM, DMARC, GoDaddy, Cloudflare, cPanel, Google Workspace, Microsoft 365 email setup, and mail flow troubleshooting. • Endpoint Security Microsoft Defender setup, security policy configuration, alert review, device protection, and basic Microsoft 365 security hardening. • SharePoint & OneDrive Document access, sync issues, permissions, cleanup, library structure, and basic migration planning. • Windows Server & AD Support Active Directory, Group Policy, permissions, Windows Server troubleshooting, and user/ device support. • Network & Firewall Support FortiGate firewall configuration, VPN setup, DNS checks, and basic network troubleshooting.

As a dedicated and customer‑focused IT Specialist, I deliver end‑to‑end cloud, infrastructure, and security solutions that help businesses stay productive, secure, and future‑ready. With 14+ years of hands‑on experience across Microsoft 365, Azure, Intune, Windows Server, and enterprise security, I ensure every client receives reliable, efficient, and scalable IT outcomes. My approach is simple: 👉 Maximize uptime 👉 Strengthen security 👉 Enhance user experience 👉 Deliver consistent, proactive IT support 🔹 Core Areas of Expertise ☁️ Cloud & Modern Workplace Microsoft 365 / Office 365 Administration Exchange Online, Teams, SharePoint, license management, and tenant optimization. Exchange Online Migration Cutover, Staged, and Hybrid migrations — seamless mailbox transfers with zero downtime. Azure Cloud Services Virtual Machines, Web Apps, Storage, Recovery Services Vault, Service Bus, and cost optimization. Azure Active Directory (AAD) Secure identity management with Conditional Access, MFA, SSO, and role-based access. Microsoft Intune / Endpoint Manager Device compliance, security baselines, configuration profiles, app deployment, and mobile device management. Windows Autopilot Zero‑touch provisioning, standardized device rollout, automation, and endpoint readiness. Email Security Anti‑spam/anti‑phishing configuration, Defender for Office 365, DKIM, DMARC, SPF hardening, and secure mail flow. G Suite / Google Workspace Setup, migration, administration, and workflow improvements. 🏢 On-Premises Infrastructure Windows Server (2003–2025) – Installation, configuration, patching & optimization Active Directory Domain Services (ADDS) – Group Policy, DNS/DHCP, domain hardening RDS (Remote Desktop Services) – Secure remote access setup WDS (Windows Deployment Services) – Automated OS deployment File, Print & Application Servers – Centralized, secure, and optimized configurations Desktop Support (L1–L3) – Fast & proactive issue resolution for all end-user environments 🔒 Network & Security Solutions Firewall Configuration & Management Expertise in WatchGuard, Fortinet, security policies, VPN, traffic rules, and threat prevention. Azure Security Center & Microsoft Defender Threat analytics, vulnerability management, secure score improvements, and compliance enforcement. Backup & Recovery Solutions DPM, Symantec Backup Exec, Windows Server Backup, Datto, MSP360 — complete continuity planning. Access Control & System Hardening BitLocker, GPO security, RBAC, and best-practice-driven security design. ⚙️ Additional Skills Server & Network Performance Optimization Virtualization & Hybrid Cloud Integrations (On‑prem + Azure) Incident, Problem & Change Management (L1/L2/L3) Root Cause Analysis & Long-term Fix Implementation 🚀 Why Work With Me? ✔️ 12+ years of real-world IT experience ✔️ Strong Microsoft 365 & Azure technical background ✔️ Proven ability to design secure, stable & high-performing infrastructures ✔️ Excellent communication, documentation, and client service ✔️ Commitment to reliability, transparency & continuous improvement 🤝 Let’s Work Together Whether you need Exchange Online migration, Autopilot deployment, Microsoft 365 management, Azure setup, firewall configuration, Windows Server optimization, or ongoing tech support, I can help you build a secure, efficient, and future-ready IT environment. 📩 Let’s connect and elevate your IT infrastructure to the next level.

✅ ABOUT ME: I am a Professional Full Time Freelancer. I have 8+ 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