Hire the Best Windows 8 Administrators in Colombo, LK

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.

As a seasoned IT professional with over a decade of experience, I specialize in managing and supporting Microsoft 365, Azure environments, server infrastructures, and user end support. My strengths lie in my ability to design, implement, and maintain complex IT systems, ensuring seamless operations and business continuity. I am proficient in PowerShell scripting, Active Directory, Group Policy, Intune, SCCM, and various backup solutions like Veeam and StorageCraft. I've successfully handled numerous projects involving server migrations, cloud deployments, and user onboarding/offboarding processes, making sure to align technology with business needs. My educational background includes a Bachelor of Science in Computer Networks, supplemented by industry-recognized certifications in Azure, Microsoft, and ITIL®. I am committed to delivering high-quality solutions and exceptional support, ensuring that every client's technical needs are met with precision and efficiency. Let’s work together to bring your IT projects to life!

Cloud and Systems Engineer with over 15 years of experience IT industry and blend expertise within Microsoft 365, Azure Cloud Solutions, LAN, WAN, Systems such as Windows and Linux. Code Version Management. Kubernetes orchestration and Docker container management experience. I have worked for various international companies, including software development companies, educational institutes, banking, and stock exchanges. On-premises, public cloud, private cloud, and hybrid design and operations expertise. Large AWS, Azure, and Google Cloud deployments and migrations Technology savvy, more into open-source and networking solutions. Certifications: Microsoft Certified Azure Solutions Architect Expert Microsoft Certified Azure Administrator ITIL version 3 Cisco Certified Network Associate Cisco Certified Network Professional - Routing Microsoft Certified Professional I have strong skills in the following areas: - Design and deploy solutions in cloud platforms (Azure, AWS) - Office 365 Administration - Providing Support for the global level for M365 - Administrating Windows Client OS - Windows 10/11 - Windows Server 2008 - 2022 Configurations - Pfsense Firewall, IPSec VPN Configuration - Network Infrastructure Design, Deployment, Ongoing Administration / Maintenance, Migration, Optimization/Tuning - System Administration in operating systems such as Centos, Ubuntu, and Windows - Firewall configuration and Administration - MySQL and MS SQL Database Administration - Virtual Server infrastructure (HyperV, VM Ware, etc.) - Network and Server Monitoring - CPanel and Web Hosting panels Installation & management - Windows RDS Solution Provider, RDS Licensing, RDS Wep Apps Solution Provider