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Microsoft 365 Architect | Exchange Online | Intune | Entra ID | Defender | Purview Helping businesses securely migrate, manage, and optimize Microsoft 365 environments. Hello, I'm Kesavan, a Microsoft Certified Microsoft 365 and Security Specialist with experience helping organizations modernize their IT environments using Microsoft technologies. I work with businesses of all sizes, from small organizations to enterprise environments, delivering secure, reliable, and scalable Microsoft 365 solutions. My focus is helping clients improve security, simplify administration, strengthen compliance, and maximize the value of their Microsoft 365 investment. Services I Provide Microsoft 365 Deployment, Administration & Migrations • Microsoft 365 tenant setup, configuration, and management • Exchange Online, Microsoft Teams, SharePoint Online, and OneDrive administration • Migrations from Exchange Server, Google Workspace, GoDaddy, Zoho, and other platforms • User onboarding, licensing, and Microsoft 365 optimization Microsoft Intune & Endpoint Management • Microsoft Intune deployment and configuration • Windows Autopilot implementation • Device compliance and security policies • Mobile Device Management (MDM) and Mobile Application Management (MAM) • Application deployment and endpoint security management Identity & Access Management • Microsoft Entra ID (Azure AD) • Multi-Factor Authentication (MFA) • Conditional Access Policies • Privileged Identity Management (PIM) • Hybrid Identity and Azure AD Connect Security & Compliance • Microsoft Defender for Endpoint, Office 365, and Defender XDR • Microsoft Purview Information Protection and Data Loss Prevention (DLP) • Sensitivity Labels, Retention Policies, and Compliance Solutions • Security Assessments and Microsoft Secure Score Improvement • Security hardening and best-practice implementation Technical Support & Consulting • Microsoft 365 troubleshooting and administration • Exchange Online mail flow and migration support • Teams, SharePoint, and OneDrive support • Security and compliance consulting • Ongoing Microsoft 365 managed services Why Clients Work With Me ✔ Microsoft Certified Professional with expertise across Microsoft 365, Security, Identity, and Compliance ✔ Proven experience delivering migration, security, and endpoint management projects ✔ Strong focus on security, reliability, and business outcomes ✔ Clear communication, responsive support, and professional project delivery ✔ 100% Job Success Score with successful project delivery across multiple industries Certifications • MS-102 – Microsoft 365 Certified: Administrator Expert • SC-300 – Microsoft Certified: Identity and Access Administrator Associate • SC-400 – Microsoft Certified: Information Protection Administrator Associate • SC-401 – Microsoft Certified: Information Security Administrator Associate • MS-700 – Microsoft Teams Administrator Associate • MS-900 – Microsoft 365 Certified: Fundamentals Whether you need to migrate to Microsoft 365, strengthen security, deploy Intune, implement compliance controls, or optimize your existing environment, I can help you achieve a secure and efficient solution that supports your business goals. Let's discuss your requirements and build the right Microsoft 365 solution for your organization.

Expert in Email Configuration, Authentication & IT Systems Administration | 11+ Years Experience I am a highly skilled IT Systems Administrator with 11+ years of experience in email configuration, authentication, deliverability, domain management, and IT infrastructure. I specialize in setting up, managing, and troubleshooting business email systems, ensuring secure, high-deliverability email communication. 💡 Email System Configuration & Management ✔ Google Workspace (Gmail for Business), Microsoft 365 (O365), Zoho Mail and many other email platforms. ✔ Mailgun, SMTP, Postfix, Exim & Other Email Relay Services ✔ Transactional & Marketing Email Setup (Mailgun, SendGrid, Instantly.ai, Lemlist, etc.) ✔ Custom Email Domain Setup, Migration & Troubleshooting 🔐 Email Authentication & Security ✔ SPF, DKIM, DMARC Implementation & Optimization ✔ BIMI & MTA-STS Setup for Brand Protection ✔ Reverse DNS (PTR Records) & Dedicated IP Configuration ✔ SMTP Authentication & Secure Email Protocols (TLS, SSL) 🚀 Email Deliverability & Optimization ✔ Inbox Placement & Avoiding Spam Filters ✔ IP Reputation Monitoring & Blacklist Removal ✔ Domain Warm-up & Cold Email Best Practices ✔ Google Postmaster Tools & Microsoft SNDS Configuration 🌍 Domain Management, DNS Setup & Hosting Services ✔ Domain Registration & Transfer Management ✔ DNS Configuration (A, CNAME, MX, TXT, SRV, PTR Records) ✔ Hosting Setup & Migration (cPanel, Plesk, Cloudflare, AWS, etc.) ✔ CDN Integration & Performance Optimization 🖥️ IT Infrastructure & Systems Administration I also have deep expertise in IT systems administration, virtualization, and troubleshooting, including: ✔ Microsoft Windows Server (Setup, Management & Troubleshooting) ✔ Microsoft Hyper-V & VMware (Virtualization & Failover Clustering) ✔ WSUS (Windows Server Update Services) for Patch Management ✔ Linux OS Installation & Server Configuration ✔ Remote IT Support for Windows, Linux & VMware With my proven track record in IT infrastructure, email solutions, and domain management, I help businesses streamline operations, secure communication, and optimize system performance. 💬 Let’s discuss how I can improve your email setup, IT systems, and domain management!

Azure | M365 Certified Cloud & Cybersecurity Expert AZ-104, SC-200, SC-100, AZ-500 Certified Are you in search of a dedicated IT professional with over six years of comprehensive experience in IT Support, System Administration, and Cloud Security? You've come to the right place. I am a dynamic technology specialist with certifications in Azure and security (AZ-104, SC-200, SC-100, AZ-500), offering proven expertise across cloud platforms like Azure, AWS, and GCP. My career is marked by extensive hands-on experience in designing, securing, and managing complex IT systems, and leading projects for organizations ranging from small businesses to large enterprises. My technical expertise includes a strong foundation in Cloud Security Solutions, where I have successfully conducted vulnerability assessments and penetration testing across web and mobile applications, databases, and cloud infrastructure. With Azure Virtual Desktop (AVD), I have both deployed new environments and optimized existing deployments, scaling from 50 to 2000 users to meet varied client needs. My AVD projects have involved custom application setups, tailored network configurations, and PowerShell scripting for streamlined management, enhancing both cost efficiency and operational reliability through high availability and disaster recovery planning. Key Areas of Expertise: Azure Virtual Desktop: Extensive experience in setting up and optimizing AVD environments, including custom applications, network configurations, and security policies. Implemented scaling plans to enhance cost efficiency and deployed disaster recovery measures to ensure system resilience. System Administration: Proficient in Azure AD, Microsoft Enterprise, GCP, AWS, M365, and on-premises/hybrid server management. Skilled in server and database migrations, Azure Virtual Desktop deployment, and optimization. Cloud Security: Advanced knowledge of security protocols, including MFA, Conditional Access policies, and data protection strategies, such as file and drive redirection in AVD environments. Network Security & System Monitoring: Proficient in network security measures and custom SIEM solutions for real-time monitoring and incident management. IT Consultancy: Offering insights to optimize IT environments, enhance operational efficiency, and establish robust security baselines tailored to your organization’s needs. Programming & Development: Programming experience in C, C++, PHP, and the MERN stack, supporting full-stack development and custom solutions. Disaster Recovery: I am adept at developing disaster recovery strategies for critical business functions, ensuring minimal downtime and seamless continuity across cloud and on-premises systems. Beyond my technical competencies, I am known for my analytical and problem-solving abilities, having successfully resolved complex issues and improved operational workflows through innovation and a commitment to continuous improvement. I take pride in mentoring teams, leading projects, and adopting emerging technologies to drive growth and efficiency. If you’re seeking a consultant to manage and secure your cloud infrastructure—ensuring high standards of performance and reliability—let’s connect.

Microsoft Certified: Azure AI Engineer Associate | GCP Professional Cloud Security Engineer | ISC2 Certified in Cybersecurity (CC) Looking for a skilled professional to secure and optimize your cloud environments? You’re in the right place! I am a dedicated Cloud Security Engineer with nearly a year of hands-on experience in cloud security, system administration, and disaster recovery. My expertise spans across multiple cloud platforms, including Azure, GCP, and AWS, where I’ve successfully implemented secure, scalable, and cost-effective solutions for various clients. With a strong foundation in cybersecurity, I excel in designing and deploying SIEM solutions, conducting vulnerability assessments, and implementing AI-powered security tools to safeguard digital assets. My experience includes managing complex IT infrastructures, setting up Azure Virtual Desktops behind secure firewalls, and leading technical projects that enhance both on-premises and cloud environments. Known for my analytical thinking and attention to detail, I have a proven track record of resolving complex technical issues and optimizing IT operations. I am passionate about continuous learning and staying at the forefront of industry developments, which drives me to deliver innovative and high-quality solutions for my clients. Areas of Expertise: Cloud Security Solutions: Designing, deploying, and maintaining secure cloud-based environments on Azure, GCP, and AWS. Conducting vulnerability assessments and implementing AI-powered security measures. System Administration: Expertise in Azure AD, GCP, AWS, and managing on-premises/hybrid servers. Skilled in server and database migrations, and Azure Virtual Desktop deployment. Disaster Recovery: Developing and implementing disaster recovery strategies for critical business processes, ensuring minimal downtime and operational continuity. Technical Support: Providing comprehensive support across platforms including Microsoft 365, Azure, and pfSense. Expert in troubleshooting and resolving software, hardware, and network issues. Programming and Development: Proficient in programming languages such as C, C++, Java, and Python. Experienced in automating security processes and integrating AI into security operations. Network Security and SIEM: Implementing robust network security measures and custom SIEM solutions for real-time monitoring and incident response. IT Consultancy: Offering expert advice on optimizing cloud environments, improving security baselines, and enhancing IT operations for businesses of all sizes.

Senior System Administrator specializing in Microsoft 365, Active Directory, AWS, and enterprise infrastructure reliability. For the past 4 years, I've been the sole infrastructure consultant supporting production systems for Revalize LLC (USA), managing customer-facing enterprise environments where downtime directly impacts revenue. Alongside this long-term enterprise infrastructure ownership, I've delivered migration and remediation projects for 20+ organizations across SaaS, manufacturing, and professional services. Core expertise: - Microsoft 365 migrations & hybrid Exchange - Active Directory & Windows Server administration - AWS cost optimization & infrastructure reliability - PowerShell automation & process optimization - Disaster recovery & business continuity Clients typically bring me in when: → Migration projects have stalled or lack expertise → Active Directory or mail infrastructure becomes unstable → Production environments lack documentation or monitoring → Infrastructure costs are growing unexpectedly → Internal teams cannot safely troubleshoot production systems Recent project outcomes: → Migrated 500+ users from Exchange 2016 to Microsoft 365 with zero email downtime during 72-hour cutover → Reduced AWS infrastructure costs by 30% ($47K annually) through EC2 rightsizing and Reserved Instance strategy → Restored multi-site Active Directory replication affecting 450+ users across 3 locations within 8 hours → Recovered a non-booting domain controller with SYSVOL/DFSR failures in 6 hours, preventing an authentication outage → Automated user onboarding workflows, reducing provisioning time from 2 hours to 10 minutes Microsoft 365 & Exchange - Exchange Online & hybrid Exchange migrations - Tenant-to-tenant migrations - Hybrid identity (Entra ID / Azure AD) - SharePoint & Teams administration - SPF / DKIM / DMARC configuration - Intune device management & endpoint compliance policies - MFA enforcement, Conditional Access, and Microsoft 365 governance - Exchange sync troubleshooting & mailbox recovery Active Directory & Windows Infrastructure - Domain controller recovery & SYSVOL/DFSR replication repair - Multi-site domain controller deployments - Group Policy management & troubleshooting - FSMO role management & transfer - Hybrid AD environments (on-premises + Entra ID) - Windows Server 2012 R2 through 2022 administration AWS & Cloud Infrastructure - Cost optimization & infrastructure analysis (40-60% average reduction) - EC2 rightsizing & Reserved Instance strategy - RDS performance tuning & elastic pool optimization - CloudWatch monitoring & proactive alerting - VPC design & auto-scaling configuration Infrastructure Reliability & Operations - Disaster recovery planning & backup validation - Production change management & operational handoff - 24/7 emergency support for production infrastructure incidents - Flexible timezone coverage (US, UK, Australian business hours) Additional experience includes VMware vSphere, Hyper-V, Fortinet/pfSense networking, Veeam/Commvault backup solutions, and enterprise ITSM platforms including ServiceNow and JIRA. Certifications: → AWS Certified Solutions Architect – Associate → Microsoft 365 Certified: Fundamentals (2024) → MCSA: Windows Server 2016 → Fortinet NSE 1 & NSE 2 Network Security Clients value reliability, communication, and operational accountability just as much as technical execution. If you need an experienced infrastructure engineer to stabilize, migrate, optimize, or maintain production systems, send me: → Current infrastructure overview (platform, user count, pain points) → Project goals and timeline → Any existing documentation or error logs I respond within 24 hours with a project assessment and approach. Available for scheduled migrations, infrastructure remediation, and urgent production recovery engagements.

Hi, I’m Udantha 👋 — a Systems Engineer & DevOps/Hosting Specialist with 7+ years of hands-on experience in: Linux system administration WordPress troubleshooting Docker deployments CloudPanel / Plesk / cPanel hosting Server migrations & backup recovery Virtualization & Cloud Operations DNS, Email (DKIM/DMARC/SPF), SSL, and security hardening MySQL/MariaDB performance tuning Website performance optimization Cloud deployments on AWS / DigitalOcean / Linode I specialize in fixing broken systems, optimizing slow servers, and performing clean, zero-downtime migrations—the kind of work where precision matters. Clients hire me for tasks that need someone who can quickly diagnose, clean up, and stabilize complex environments: 🛠 I Can Help You With: Server security hardening & performance tuning Database fixes, recovery, and replication Cloud server setup (Ubuntu, Debian, Rocky, Alma) Fixing DNS, email deliverability & hosting issues Restoring crashed websites (Digital Ocean, AWS, Google, IONOS, Bluehost, SiteWorx, etc.) WordPress errors, migrations, malware cleanup Web servers such as Nginx / Apache SSL configurations Docker Configurations Backup strategy design (Acronis, B2, rsync, S3, Plesk backup) ⚡ Why Clients Like Working With Me I solve problems fast I provide clean documentation after every job I communicate clearly and don’t overpromise I’ve rescued dozens of servers & websites from disaster If you're looking for someone reliable who can stabilize your servers, fix urgent issues, or manage complex migrations with zero drama — I’m available and ready to help. Let’s get your systems running smoothly again. 🚀