Hire the Best Microsoft Active Directory Specialists
in Sri Lanka

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.

I bring to the table 10+ years of experience working for MSPs based in the UK,US and Canada providing remote technical support and gaining proficiency at all levels of support from handling non-technical end users to supporting managing server, network infrastructure and leading complex infrastructure designing, implementation & migration projects. I speak MSP lingo ! Are you looking to get support for your NOC ? to manage and maintain your workstations servers, routers and firewalls ? Are you looking for someone to train and help manage your team so you can focus on growing the business ? Are your engineers taking up too many hours performing routine work ? I'm a seasoned MSP expert who is able to help you alleviate all the above pain points From remote technical support, building products services and end to end automation, I'm able to offer you the one stop shop for all your MSP needs. Infrastrcuture : Windows Desktop, Windows Server, Windows Server Clustering, VMware ESXI, SQL, Veeam Cloud : Azure, AWS , O365 PSA : Autotask, Jira, Zohodesk, Freshdesk RMM : Ncentral, Datto, Connectwise, Atera, Ninja RMM Automation : Powershell, Bash, Python

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.

Career Objectives I aspire to join a dynamic organization that offers chances for both personal and professional growth within the Information Technology and Information Security sector. I have a strong passion for ICT Business, IT Security, and Management, which encompasses Technology Management, Advanced Design, Project Coordination, Execution, Team Leadership, and the establishment of effective procedures, processes, and staff training. I am eager to contribute to a quality-certified company where I can showcase my abilities and, in return, become a catalyst for the organization's advancement. Executive Summary As an accomplished IT professional with over two decades of comprehensive experience, I bring a wealth of expertise in Cyber Security, IT Infrastructure, and Revenue Cycle Management (RCM) to the table. With a solid foundation built over 10 years in managerial roles, my focus has been on delivering top-notch ICT Services and Information Security solutions, supported by a robust set of international certifications. Throughout my career, I've demonstrated proficiency across diverse platforms, including Microsoft Windows and Linux, while spearheading numerous projects encompassing planning, development, deployment, implementation, and training. My areas of specialization span Infrastructure Technologies, ICT Business Analysis, IT Security, IT Infrastructure Planning, and IT Services Management (ITSM). In addition to my industry roles, I've leveraged my expertise through freelance endeavors, offering a spectrum of IT services ranging from web development to penetration testing. This entrepreneurial venture has not only broadened my skill set but also provided insights into effective business management and client service delivery. Moreover, my commitment to continuous learning is evidenced by my pursuit of advanced certifications, including the Certified Ethical Hacker V11 program and specialized courses in wireless and mobile hacking. Recently, I further enhanced my proficiency with the completion of the Microsoft Cloud Security Engineering program. I have a proven track record of success in managing IT operations across multiple geographies, having held positions as IT Manager at Virtual Office Solutions and Senior IT Manager at Infopride Solutions, where I oversaw operations in Sri Lanka and Australia, United States Additionally, my consultancy services at Infopride Sub Company Janathakshan Gte Ltd underscore my ability to provide strategic IT guidance to diverse organizations. Specialties: ✅ Cybersecurity Training & VAPT / Penetration test ✅ Microsoft 365 & Microsoft Azure Projects ✅ Cloud Security ✅ Security team building ✅ Microsoft Training ✅ Patch Management ✅ Web Development ✅ Network Security ✅ Other IT Support

With nearly 9 years of experience in IT Support, I have built a strong foundation in , Customer Support, IT Systems Administration, Technical Support, and Microsoft 365 Administration. An IT professional who is passionate about technical support and continuous learning. A person with a positive attitude and a problem solving mindset both in technology and in life. Related Experience and skills : M365 Administration Troubleshooting Exchange / Sharepoint / One Drive / Teams / Migration Entra ID / Intune / Security Defender / Purview Office 365 / Outlook / Windows Troubleshooting Active Directory / DNS / DHCP Windows Server 2022/2016/2012 (Installing/Administering/Maintaining), Routing/Switching LAN/WAN, Remote Technical Support, Help desk Support, Network Security (Firewall, VPN, VoIP), Data Centers, Hardware/Software, Microsoft Office (Word, excel, outlook, PowerPoint), Printers and UPS Currently, I work as a Microsoft 365 Administrator, supporting global Microsoft customers. In Microsoft i also served in the following roles as a Microsoft 365 Support Lead, managing a team of 15 engineers who provided remote support to clients worldwide, I worked as a Level 2 Support SME, assisting Microsoft Support Agents by resolving complex and escalated cases. Awards : Was awarded as the Freelancer of the Year on 2021 for Microsoft Due to the Recent organizational changes in Microsoft I am Actively seeking a position where I can apply my technical skills, expand my experience, and continue building my career in IT Below are my educational qualifications Qualifications : • BSc (Hons) in Computer Network Security(UK) (2016) • CCNA certified. • MS900 certified • HND in Computing and Systems Development (Pearson UK)

Experienced consultant with a demonstrated history of working in the information technology for more than 16 years. I am skilled in Microsoft core products such as Active Directory, Exchange, Office 365, Windows Server, Azure, Intune etc. Technical expertise: Office 365 Microsoft Exchange 2007/ 2010 / 2013 / 2016 / 2019 Azure Virtual Desktop (AVD) Microsoft Windows Server 2008/ 2012/ 2016/ 2019 Exchange Online Exchange Hybrid Azure IaaS Azure AD Join, Azure AD Hybrid Join Active Directory deployment/ migration Azure Active Directory Azure AD Connect Intune, Intune Autopilot DNS, DHCP, Group Policy, SMTP, SPF, DKIM Email migration, Bittitan MigrationWiz OneDrive for Business SharePoint Online Administration Certifications: Microsoft Certified: Azure Virtual Desktop Specialty Microsoft Certified: Identity and Access Administrator Associate Microsoft Certified: Azure Administrator Associate Microsoft Certified Solutions Expert: Productivity Microsoft 365 Certified: Messaging Administrator Associate Microsoft Certified Solutions Associate: Office 365 Microsoft Certified Solutions Associate: Windows Server 2008 Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Professional