Struggling with unreliable infrastructure, VMware licensing costs, or a stalled cloud migration? I'm a DevOps & Cloud Engineer who builds and stabilizes production environments across AWS, Azure, Proxmox, and Ceph — with a focus on uptime and automation.
Most DevOps engineers specialize in either cloud or on-prem infrastructure. I do both: I've run production Proxmox VE clusters with Ceph storage alongside AWS, Azure, and GCP deployments, and I handle VMware-to-Proxmox migrations end-to-end — a combination few freelancers on Upwork cover with hands-on production experience.
Here's how I typically help clients:
✔ Design and deploy cloud infrastructure on AWS, Azure, or GCP
✔ Build and troubleshoot Proxmox clusters, including VMware-to-Proxmox migrations
✔ Optimize and recover Ceph storage clusters
✔ Set up Docker and Kubernetes environments with CI/CD pipelines
✔ Implement monitoring with Zabbix and Grafana
✔ Plan and test backup and disaster recovery strategies
✔ Secure infrastructure with VPNs, firewalls, and Zero Trust practices
Top Rated Plus on Upwork with a 4.98 rating across 51 completed jobs and over 2,870 hours worked. AWS Cloud Practitioner Essentials certified. Clients include startups, MSPs, SaaS companies, and enterprise teams relying on me for production-grade infrastructure.
Send me a message with what you're working on and I'll respond with next steps within a few hours.
VMware ESX Server
VMware Administration
Docker
Proxmox VE
AWS Application
Linux System Administration
System Administration
Zero Trust Architecture
Microsoft Azure Administration
Windows Server
Azure DevOps
Terraform
Kubernetes
Ceph
Cloud Architecture
OpenStack
OpenShift
Imam D.
Karachi, Pakistan
$35/hr
5.0
65 jobs
I provide reliable Cloud, ERP, VPN, Firewall, Backup, Remote Access, and IT Infrastructure solutions for businesses.
I help companies set up, secure, manage, and troubleshoot their IT systems including servers, cloud hosting, VPN, firewalls, backup solutions, RDP access, Proxmox infrastructure, ERPNext hosting, accounting software, and monthly IT support SLA.
My services include:
• Cloud server setup and management
• Dedicated and standard server configuration
• Proxmox infrastructure deployment and support
• Hetzner cloud support
• OpenVPN and remote access setup
• Fortinet firewall configuration and troubleshooting
• RDP users and CAL services support
• ERPNext hosting and rental-based ERP/accounting software
• Accounting and inventory software support
• SSL security setup
• Veeam and Nakivo backup configuration
• Backup storage and file server solutions
• Windows and Linux server support
• IT troubleshooting and end-user support
• Monthly IT support SLA for businesses
I focus on secure, stable, and business-ready solutions. My goal is to provide clean deployment, proper documentation, reliable troubleshooting, and long-term support for clients.
If you need help with cloud hosting, VPN, firewall, remote access, ERP hosting, backup, or complete IT infrastructure, I can support you from planning to deployment and ongoing maintenance.
Let’s discuss your requirement and build a reliable solution for your business.
Server
Windows Server
System Administration
Ubuntu
Linux
Technical Support
Server Administration
Cloud Computing
Proxmox VE
Virtualization
Backup & Migration
Veeam
Backup Administration
IT Support
Windows 10 Administration
Windows 11 Administration
Tech & IT
Microsoft Windows
Devolutions Remote Desktop Manager
System Installation & Upgrades
Mohamed K.
Giza, Egypt
$40/hr
5.0
37 jobs
As a seasoned System Administrator with over a decade of experience, I specialize in managing both Linux and Windows operating systems. My expertise is grounded in a robust skill set that spans a broad range of technical responsibilities. Key areas of proficiency include:
1- Cloud Computing: Skilled in AWS Cloud services, such as EC2, RDS, EBS, CDN, AS3, and VPC.
2- Virtualization Technologies: Experienced with a variety of virtualization software including Proxmox, ESXI, Xen, KVM, Virtualbox, and VMWare.
3- Server Management: Proficient in managing Web, FTP, DNS, Database, and Email Servers.
4- Security and Monitoring: Adept in securing PHP, system monitoring, hacking detection, and server cleanups.
5- Control Panels: Knowledgeable in control panels like cPanel/WHM, Plesk, Webmin, Virtuozzo, CWP, CyberPanel, and Vestacp.
6- Network Administration: Expertise in administering networks, including LANs, WANs, and VLANs.
7- Database Management: Competent in MySQL Cluster and Load Balancing.
8- Firewall Management: Skilled in firewalls such as Sophos, Pfsense, and Kerio.
9- Streaming Technologies: Proficient in setting up and managing streaming servers including 10- RTMP, WMSPanel, Nimble, HLS, and FFMPEG.
11- Containerization: Experienced with Docker installation and image setup.
12- VPN and Proxy Solutions: Proficient in configuring and managing VPN networks, including OpenVPN and WireGuard, and proxy servers such as Squid, 3proxy, and HAproxy.
VMWare
CentOS
Linux
Windows Server
VirtualBox
Network Administration
Virtual Private Server
MySQL
Linux System Administration
WordPress
Web Hosting
VPN
Kernel-based Virtual Machine
Proxmox VE
Bash Programming
PHP
Karthik R.
Chennai, India
$15/hr
4.7
84 jobs
✅ 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
Microsoft IIS
Microsoft Windows
System Administration
TortoiseSVN
Database Management
Diego O.
Dublin, Ireland
$80/hr
5.0
37 jobs
Experienced IT professional with 15+ years in high-complexity datacenter environments, specializing in virtualization, cloud, and enterprise IT solutions. I hold an MBA in Project Management and a BSc. in Computer Engineering, along with multiple industry-recognized certifications, including VMware vExpert, Citrix Technology Professional (CTP), and Nutanix Technology Champion (NTC).
As a VMware Systems Engineer, Microsoft/Citrix Instructor, and Solutions Architect, I provide expert-level consulting, solution design, and system administration across major platforms: VMware, Microsoft, Citrix, Nutanix, Cisco, Linux, and AWS.
Technologies / Certifications
________________________________________
✔ VMware Certified Professional (VCP):
- Cloud Foundation Administration: VCP-VCF 2024
- Data Center Virtualization: VCP-DCV 2024, 2023, 2021, VCP6-DCV, VCP5
- Network Virtualization: VCP-NV 2024, 2020, 2019
- Desktop & Mobility: VCP-DTM 2019
- Cloud Management & Automation: VCP6-CMA
✔Microsoft Corporation: Trainer (MCT) | Microsoft Azure Administrator (AZ-104) | Azure Administrator Associate (AZ-900) | MCSE Productivity | MCSE Communication Lync 2013 | MCSE Server Virtualization with Hyper-V and System Center | MCSA Windows Server | Core Solutions of Microsoft Exchange Server | Enabling Office 365 Services | MSCA Windows | MCP Windows Server
✔Citrix Corporation: Citrix SD-WAN Certified | Citrix Certified Associate - Virtualization | Citrix Certified Associate - Networking | Citrix Certified Professional - Networking
✔SNIA Corporation: SNIA Certified Storage Professional.
✔Cisco Corporation: CCNA Routing and Switching | CCNA Security.
✔Nutanix Corporation: Nutanix Platform Professional 5.0 | Nutanix Certification Professional 5.10 (NCP 5.10) | Nutanix Certified Advanced Professional (NCAP 5.10)
✔Pure Storage: Pure Certified FlashBlade Implementation Specialist | Pure Certified FlashBlade Support Specialist | Pure Certified Data Storage Associate | Pure Certified FlashBlade Storage Professional
✔ Linux Professional Institute Certification 1
✔AWS Certified Solutions Architect – Associate
✔Veeam Certified Engineer (VMCE) 2023
VMware ESX Server
VMWare
VMware Administration
Microsoft Hyper-V Server
Microsoft Active Directory
Citrix
Virtualization
CentOS
Veeam
Service Cloud Administration
Load Balancing
Citrix ADC
Office 365
Citrix Virtual Apps & Desktops
VMware vSphere
Zeljko J.
Kraljevo, Serbia
$35/hr
4.9
26 jobs
Network & IT Infrastructure Expert | Mikrotik | VPN | Linux | Cloud
With 25 years of experience in IT infrastructure and network engineering, I specialize in designing, securing, and optimizing network systems for businesses of all sizes. Whether you need a reliable VPN solution, a secure network setup, or an optimized server infrastructure, I can help you achieve your goals efficiently.
What I Offer:
Mikrotik & Network Configuration – Routing, Firewall, VLANs, QoS, Wireless
VPN & Secure Networking – WireGuard, OpenVPN, IPsec, GRE tunnels
Linux System Administration – Ubuntu, CentOS, Debian, server automation
Cloud & Backup Solutions – Veeam, Rsync, ZFS, Proxmox, Disaster Recovery
Server & API Hosting – OpenStreetMap servers, self-hosted solutions
Troubleshooting & Performance Optimization – Network monitoring, security hardening
Web Development – Next.js websites, WordPress to Next.js migrations
I have worked with businesses, startups, and enterprise clients to ensure their IT infrastructure is secure, scalable, and high-performing. My approach is straightforward – I analyze, optimize, and deliver solutions that just work.
Let’s connect and discuss how I can help with your project!
VMware ESX Server
VMWare
VMware Administration
Network Engineering
Linux
MikroTik
Cisco
Network Monitoring
Network Administration
VPN
Linux System Administration
Network Design
Network Security
Backup
Firewall
React
Web Development
Website Migration
JavaScript
Next.js
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