Hire the Best Data Backup Experts 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.

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.

✅ Self-motivated Linux Server Administrator and Network Administrator with more than 10+ years of working experience with different Cloud providers. Ready to take up any challenge. ✅ Expert on, 💎 AWS, Google Cloud, Azure, DigitalOcean or onPrem server management. 💎 Setting up and manage different environment Web Server, Database Server, Mail Server, Load Balancer, Optimization and Security. 💎 Designing Web Server - Building web server based on Apache, Nginx, Nginx/php-fpm, Varnish as backend with high performance tuning and major security issues. 💎 Learning Management Systems – Moodle (Expert) including mobile app (Android & Apple IoS) customization 💎 Document Management Systems – Nextcloud (Expert) and onlyoffice 💎 Security - Malware removal, server hardening using firewall rules, restriction in server login, Web security, Security auditing, fail2ban, mod_security for web attack, mod_evasive DDOS attack prevention, Firewall setup CSF, UFW and iptables. Prevention from mail attack, SSL Certificate installation. 💎 Database Server - Building MySQL, Mariadb database server with high performance , troubleshoot database server problems, tweaking MySQL variables for performance. 💎 Scripting - Bash Scripting for monitoring servers, auto backup. 💎 Mail server- Building mail server for sending and receiving mails postfix, sendmail, setup mail client Roundcube, SquirrelMail, Rainloop, Horde. Dovecot for POP & IMAP, troubleshoot mail issues, configure mail for delivery in inbox. 💎 Monitoring services and servers – LibreNMS, Nagios monitoring tools, tweaking as per requirement, monitor servers using bash script, Tripwire. 💎 Amazon - AWS EC2 server setup, Security. 💎 Cloud Servers & Panel - Management of Ubuntu, Centos, Cpanel, CWP, WHM, Plesk, Webmin, Diretadmin, ISPConfig, JustHost, Godaddy, Linode, Rackspace, Amazon. 💎 Migration - Server migration, website migration, database server migration, mail server migration. 💎 VOIP Solutions - Asterix based PBX (Eg: VitalPBX) 💎 Video conferencing - Zoom (including on premise setup), Jitsi, BigBlueButton 💎 Virtualization Technology - VMware VSphere Esxi, KVM, Xen Server 💎 Networking (CCNP R&S and SP certified) - Hands on experience with CISCO, HP, Extreme, Juniper devices including wireless. 💎 Firewall configurations - Hands on experience with Palo Alto, Check point and Cisco ASA firepower. ✅ Please do not hesitate to contact me to discuss your project in detail and determine how my skills will positively contribute to your team.