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I am a Cloud FinOps, Microsoft, and AWS Certified professional with 16+ years of experience helping businesses migrate, secure, and optimize their IT infrastructure across both cloud and on-prem environments. 🔘 Email Migration & Microsoft 365 (Office 365) I provide seamless email migration from Google Workspace, cPanel, Zimbra, GoDaddy, or on-prem Exchange to Microsoft 365 / Exchange Online. I ensure zero data loss, smooth DNS cutover, and complete post-migration validation. 🔘 Microsoft 365 Setup & Administration * Exchange Online & Hybrid configurations * Security, MFA, and Conditional Access setup * Data backup and retention policies 🔘 AWS Cloud FinOps & Cost Optimization I help businesses reduce AWS cloud costs while improving performance and reliability. My FinOps expertise includes cost analysis, identifying wasted resources, and implementing optimization strategies such as Reserved Instances (RI), Savings Plans (SP), rightsizing, and scheduling non-production workloads. I also support tagging strategy, cost allocation reports, and budgeting to improve visibility across teams. I provide ongoing monthly cost optimization and reporting using tools such as AWS Cost Explorer, CUR (Cost & Usage Report), CloudWatch, and automation. Key FinOps Services Include: * AWS cost audit & waste reduction * Reserved Instances & Savings Plans strategy (purchase + management) * EC2 / RDS / EBS rightsizing and optimization * Auto-scaling and workload scheduling (dev/test shutdown automation) * Tagging compliance & cost allocation reporting * Monthly savings reporting and forecasting 🔘 Cloud Migration & Infrastructure Setup I provide end-to-end cloud migration for websites, applications, and servers — from shared hosting or VPS to AWS, Azure, Google Cloud, DigitalOcean, or Linode. * AWS: EC2, RDS, Route 53, S3, IAM, Load Balancer, SES, WorkMail * Azure: Azure AD, Virtual Machines, and resource management * CI/CD pipelines, Auto Scaling, and backup automation 🔘 Windows Server & Active Directory I have deep expertise in Windows Server administration, domain management, and security hardening. * Active Directory, DNS, DHCP, Group Policies, BitLocker, SCCM * File servers, IIS, WSUS, and RDP services * PowerShell automation and Intune MDM 🔘 Security & VPN Solutions I implement secure VPN solutions (OpenVPN, IPsec), SSL certificates, firewall rules, and server hardening best practices to protect enterprise systems and communication. 🔘 Web & Application Migration I have migrated thousands of websites and applications, including WordPress, Joomla, Magento, Laravel, Node.js, Python, and more. ### Certifications ✅AWS Certified Solutions Architect – Associate ✅Exam 410: Installing and Configuring Windows Server 2012 ✅Exam 411: Administering Windows Server 2012 ✅Exam 412: Configuring Advanced Windows Server 2012 Services ✅FinOps Certified Practitioner ✅MCSA: Windows Server 2012 - Certified 2019 ✅MCP 2008 Why Choose Me ✔ 12+ years of enterprise-level system administration experience ✔ Proven record of successful migrations with minimal downtime ✔ Certified expertise in AWS, Microsoft 365, Windows Server, and FinOps ✔ Reliable post-migration support, security optimization, and cost reduction

⭐️ Top Rated Plus - Top 3% Expert on Upwork 🕒 9000+ Working Hours ✅ 20+ Years of Expertise ✅ 100% Job Success ✅ 300+ Successful Projects Finished ✅ 5 Star Rating Hello, I'm Oleksandr. As a seasoned Linux System Administrator and DevOps Engineer with over 20 years of experience I specialize in delivering robust IT solutions that enhance operational efficiency and security. My expertise spans across various domains, including: ▪ DevOps & Automation: Successfully implemented automated provisioning using Ansible, streamlining deployment processes and reducing manual intervention. ▪ Linux & FreeBSD Maintenance: Managed and optimized server environments on CentOS, Debian, Ubuntu, RHEL, and FreeBSD, ensuring high availability and performance. ▪ Cloud Hosting: Deployed and maintained scalable cloud solutions on AWS, Azure, and DigitalOcean, enhancing infrastructure reliability and scalability. ▪ Virtualization: Utilized Docker, VirtualBox, and OpenVZ to create flexible and efficient virtual environments, supporting diverse application needs. ▪ Web & Database Servers: Configured and maintained Apache, Nginx, MySQL, PostgreSQL, and MongoDB servers, ensuring secure and efficient data handling. ▪ Networking & Security: Implemented secure networking solutions, including VPNs and firewalls, to protect sensitive data and maintain network integrity. I am committed to continuous improvement and staying abreast of the latest industry trends. My approach is rooted in ITIL best practices, ensuring incident management and business continuity planning are at the forefront of my work. Let's collaborate to drive your IT projects to success with innovative solutions and expert guidance.

Highly competent, dynamic and motivated Professional with several years of comprehensive experience in Amazon Web Services, azure services, windows server’s oracle applications and databases servers Microsoft application and databases servers, Linux system administration, solutions architecture, troubleshooting, guiding & mentoring. A versatile Professional possesses a high awareness of practical issues and trends, particularly regarding accessibility, usability and emerging technologies in the Cloud and IT Industry. Results-oriented professional with a proven ability of excellence to get results, conduct researches, ensure adequate supervision and efficiency. Excellent team player with a high capacity to organize and present complex solutions clearly and accurately. ● Amazon Web Services (AWS) Certified Solutions Architect ●MCSA Microsoft Certified System Administrator on Windows Server 2012 ●MCSE Microsoft Certified Solution Expert private cloud System sccm2012 ●MCSE Microsoft Certified Systems Engineer on Windows 2003 (exchange 2003) ●MCSA Microsoft Certified Systems Administrator on Windows 2003 ●MCSE Messaging on Windows 2003 ●MCP Microsoft Certified Professional. ●Azure Microsoft specialist ●Juniper network association ●ITIL Service Management foundation Level, 2015 ● Over 12 + years of comprehensive experience as a DevOps Engineer / Linux and windows System Administration ● 6 + years of current solutions architecture implementation/consulting) experience ● 8 + years of solid experience in Amazon Web Services ● Experience architecting infrastructure solutions using both Linux/Unix and Windows with specific recommendations on the server, load balancing, HA/DR, & storage architectures ● Experience architecting or deploying Cloud/Virtualization solutions in enterprise customers ● Experience working within the enterprise software market or internet industries ● Expert knowledge of AWS platform features and capabilities ● Experienced at producing multi-tier, high-availability infrastructure architectures in an Enterprise & cloud environment adhering to DR, Business Continuity and availability best practice ● Understanding of Hybrid Cloud solutions and experience in integrating public cloud into traditional hosting/delivery models ● Experience with application and infrastructure management and monitoring tools ● Experience with executing quick technical feasibility and proposal development for moving identified workloads to AWS ● Manage cloud risk & compliance assessments with the customer ● Building and recommending a migration approach to lift and shift the workloads to AWS alternatively, architect a greenfield development and production platform for new applications. Able to help shape transition and transformation strategies ● Knowledge and experience of AWS pricing and commercial models and how to optimize for a given engagement or use case ● Good working knowledge of processes and procedures ● Pro-active, self-starting, entrepreneurial attitude ● Ability to perform and conduct workshops and meetings to develop client solutions ● Strong verbal and written communications skills, as well as the ability to work effectively across internal and external organizations less

Hello My name is Mohit Kumar. I am from India and a certified Hardware & Networking engineer with more than 9 years of experience. I am dedicated, hardworking, and believe in maintaining strong professional relationships. I worked with NYC IT Works, a New York–based MSP company, from February to November. As of December, I am free and ready to join immediately. I can fix your Personal Computer by using Remote Connection, to easily help you with software installation and Hardware related issue, below are listed professional IT's I can handle in your personal computer system. Installation windows & linux Cleaning from viruses, spyware and malware. Speed up (optimization) Driver installation (compatible with Operating System) Problem diagnostic (software and hardware) Can help in gaining of lost password (win login) Upgrading of your Hardware for Better Performance Provide Network Related Issue WIFI Issue Virtualization with VMware workstation and oracle virtual box . web server (LAMP, IIS). Antivirus and windows update patch management Working on Team Viewer, Ammy admin, VNCViwer and Show My pc. IT security Incident monitoring and Management, Route cause analysis. Active Directory Services, DHCP. VPN Configuration OpenVPN and IPsec. Contact me for other type of problem you are having with your Computer, Laptop, and other devices. Please provide as much information about the problem you are having, I am here to solve problem Thank You

✅ 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

Slow databases? Production outages? Performance bottlenecks affecting your business? I help organizations identify root causes, optimize database performance, and build reliable database platforms. I am a senior database administrator (DBA) with over 13 years of hands-on experience managing production database systems. I specialize in MySQL, MariaDB, PostgreSQL, SQL Server, MongoDB adn Oracle, providing database troubleshooting, incident response, daily operations and maintenance, performance optimization, and reliable backup, high availability, and disaster recovery solutions for mission-critical environments. 🔍 Database Expertise: With over 13 years as a senior expert in MySQL/MariaDB/Percona/PostgreSQL/MongoDB/Oracle/SQL Server/DuckDB, I’ve managed over 5000 databases and 300 TB+ of data. My experience covers database architecture, performance optimization, backup and recovery, High availability, disaster recovery, and much more. I ensure every database solution I deliver is robust, scalable, high performance, and perfectly aligned with your business needs. 🛠️ Technology Stack: MySQL/Percona (Versions 5-9) MariaDB (Versions 5-12): Installation、High Availability, Replication, and Scalability Solutions、InnoDB Cluster、Group Replication、Workbench/Shell/Router、Backup & Restore、Galera Cluster、Percona XtraDB Cluster、XtraBackup、Toolkit、InnoDB/MyISAM/Binlog、Orchestrator、replication-manager. PostgreSQL (Versions 7-18): Installation、High Availability, Replication, and Scalability Solutions、SQL Tuning、pgpool-II、PostGIS、TimescaleDB、ClickHouse、Patroni、Citus、pgvector、Security、Supabase、Neon. MongoDB (Versions 3-8) / MongoDB Atlas : Installation、MongoDB Shell (mongosh)、Aggregation、Indexes、Atlas、Time Series、Change Streams、Replication、Sharding、Storage、Administration、Security. SQL Server (Versions 6.5 – 2025): Installation、High Availability and Disaster Recovery (Always On AG, FCI, Log Shipping, Replication)、Distributed Availability Groups、SQL Server Management Studio / Azure Data Studio / sqlcmd、Backup & Restore、Failover Cluster / Always On Solutions、PowerShell dbatools / First Responder Kit、Storage Engine / Transaction Log / Change Data Capture. Other Database : Oracle、DB2、Redis、SQLite、DuckDB、DocumentDB Cloud service providers: AWS RDS、AWS Aurora、Amazon DocumentDB、GCP、Azure、N8N creator. Certifications: I hold certifications from Cisco, Oracle, MySQL, AWS, ITIL, PMP, and TOGAF, ensuring I bring industry-recognized expertise to every project. 📈 Why Choose Me? Proven Experience: Worked for leading ICT and IoT solution providers, supporting major operators, banking, and financial enterprises. End-to-End Solutions: From designing high availability architectures to delivering query optimizations and backup solutions, I offer complete database management expertise. Training & Support: I also provide course training for companies looking to empower their teams with database-related skills. 🤝 Let’s Collaborate: If you’re looking for a seasoned database professional to tackle challenges in MySQL, PostgreSQL, MongoDB, Oracle, or other database technologies, let’s discuss how I can help streamline your operations and enhance performance. 📩 Contact Me: I’m ready to dive into your project. Reach out, and let’s unlock the full potential of your data infrastructure together!