Hire the Best Windows Administrators

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Rating is 4.8 out of 5.
4.8/5
Based on 768 client reviews
Shafi U.

Jeddah, Saudi Arabia

$20/hr
5.0
15 jobs

"Is your team losing hours to IT issues? I provide fast, reliable remote support resolving tickets, fixing network issues, and keeping systems running smoothly. I provide expert-level technical support for desktops, networks, and software. With over 10 years of experience, I have helped businesses streamline their IT operations. Let’s solve your tech challenges today!" Remote Desktop & Network Troubleshooting Office 365 / Google Workspace Setup & Support Microsoft Exchange & Active Directory Administration VPN Configuration & Security Support Software Installation, Maintenance & Support DNS, DHCP, and Server Management Firewalls, IDS, and antivirus systems IT Helpdesk & End-User Support

  • System Administration
  • DHCP
  • Microsoft Exchange Server
  • Office 365
  • DNS
  • Microsoft Azure
  • Microsoft Active Directory
  • Server Administration
  • Office Administration
  • Troubleshooting
  • Microsoft Outlook
  • Zoom Video Conferencing
  • Windows 11 Administration
  • Remote IT Management
Vitaliy L.

Kyiv, Ukraine

$15/hr
5.0
9 jobs

System administrator with more than 10 years of experience. Work with all Windows server platforms and user OS, mail, O365, Exchange online, AD, Azure AD, GPO and so on.

  • Microsoft Windows
  • System Administration
  • Office 365
  • Microsoft Azure Administration
  • Microsoft Hyper-V Server
  • Windows Server
  • Microsoft Exchange Online
  • Veeam
  • DNS
  • Email Communication
  • Google Cloud Platform
  • Google Workspace
  • IT Support
  • Remote Connection Support
  • Troubleshooting
  • Tech & IT
  • Technical Support
  • Email Support
  • Email Deliverability
  • Microsoft Endpoint Manager
John-Paul R.

San Antonio, Texas

$56/hr
5.0
160 jobs

Versatile and strategic IT Leader and Systems Engineer with a proven track record of directing technology operations, strategy, and security across diverse, high-stakes sectors including finance, education, and managed IT services. Adept at building and leading high-performing teams, driving significant cost reductions and revenue growth, and architecting resilient, enterprise-level infrastructure. An expert in incident management, disaster recovery, and aligning technology with overarching business goals to ensure operational excellence and security.

  • Windows Administration
  • Microsoft Exchange Server
  • Windows Server
  • Asterisk
  • TCP/IP
  • Linux System Administration
  • Network Administration
  • VMware Administration
  • VMware ESX Server
  • Mobile QA
  • Data Center Operations
  • Microsoft SharePoint Administration
  • FreePBX
  • Telecommunications Engineering
  • Blockchain
Danish H.

Islamabad, Pakistan

$45/hr
5.0
75 jobs

⭐⭐⭐⭐⭐ Top Rated IT & Technical Support Specialist 🏆 Top Rated Freelancer ✅ 100% Job Success ✅ 55+ Successfully Completed Projects ✅ Fast Response & Reliable Communication Need fast, reliable, and professional Remote IT Support? I help businesses and individuals solve Windows, macOS, printer, networking, software installation, gaming PC, and computer performance issues through secure remote support. Whether you're facing technical problems, system crashes, printer errors, slow performance, or network issues, I provide efficient solutions that get your devices back to peak performance. With years of hands-on experience in IT Support, Computer Repair, Windows Administration, and Network Troubleshooting, I focus on providing permanent solutions rather than temporary fixes. Every issue is carefully diagnosed to ensure your computer runs smoothly, securely, and reliably. 🛠 Services I Offer ✔ Remote IT & Technical Support ✔ Windows 10 & Windows 11 Troubleshooting ✔ macOS Support ✔ Computer & Laptop Repair ✔ Custom Windows ISO Creation ✔ Windows Installation & Reinstallation ✔ Software Installation & Configuration ✔ Driver Installation & Updates ✔ Printer Installation & Network Printer Configuration ✔ Wi-Fi & Network Troubleshooting ✔ Virus & Malware Removal ✔ Blue Screen (BSOD) & Windows Error Fixes ✔ System Performance Optimization ✔ Gaming PC Optimization ✔ Hardware Diagnostics ✔ Windows Updates & Upgrade Issues ✔ Secure Remote Support using TeamViewer & AnyDesk 🖥 Custom Windows Builds I create customized Windows installations designed for businesses, gamers, developers, offices, educational institutions, and personal users. Each Windows build is professionally optimized for speed, stability, security, and reliability while removing unnecessary software and background processes that reduce performance. Whether you need a lightweight Windows installation, integrated drivers, unattended setup, gaming optimization, or a fully customized deployment, I can create a Windows build tailored specifically to your requirements. 🌟 Why Clients Choose Me ✔ Top Rated Freelancer ✔ 100% Job Success ✔ Fast Response Time ✔ Professional Communication ✔ Secure Remote Sessions ✔ Reliable Troubleshooting ✔ Long-Term Technical Solutions ✔ Attention to Detail ✔ Client Satisfaction is My Priority If you're looking for a dependable IT Support Specialist who can resolve Windows, Mac, printer, networking, gaming PC, software installation, or computer repair issues quickly and professionally, I'm ready to help. Send me a message today, and let's get your systems running smoothly.

  • Microsoft Windows
  • Tech & IT
  • Computer Maintenance
  • Troubleshooting
  • End User Technical Support
  • Computer Network
  • Product Knowledge
  • Technical Support
  • IT Service Management
  • Operating Systems Development
  • Desktop & Laptop Support
  • Application Setup & Installation
  • Windows 11 Administration
  • Microsoft Office
  • Microsoft Active Directory
  • VPN
  • AnyDesk Software
  • Remote Connection Support
  • Windows Server
  • Game Tuning
Kehinde A.

Ikeja, Nigeria

$35/hr
5.0
43 jobs

Looking for a Microsoft 365 engineer who can solve L1/L2 technical issues quickly, strengthen your security, and become a dependable extension of your IT team? I have 9,900+ hours of proven remote IT support experience, maintaining a 100% Job Success Score on Upwork, including 5+ years supporting small businesses across North America and Europe, while delivering Microsoft 365 setup and administration, SharePoint administration, cloud migrations, security administration, and end-user support for businesses across North America & Europe. I've supported everyone from end users and executives to nonprofit organisations and SMBs, helping keep their Microsoft environments secure, reliable, and running efficiently. I specialise in administering, managing, securing and automating Microsoft 365 environments, with hands-on experience across SharePoint, Teams, Exchange Online, Entra ID, Intune, Windows 365, Microsoft Defender, Microsoft Purview, Azure, Microsoft Sentinel, Windows Server and Exchange server administration. Core Expertise: MICROSOFT 365 & CLOUD Microsoft 365 Administration SharePoint Online Exchange Online Microsoft Teams Google Workspace AUTOMATION & SECURITY Power Automate Entra ID, Conditional Access, MFA Microsoft Defender for Endpoint, Defender for Office 365 Microsoft Purview Security Incident Response & Remediation SentinelOne EDR Technical Alignment Reviews IT OPERATIONS Datto RMM, Ninja RMM, N-Able N-Central EDR & SaaS Protection IT Glue Documentation Network Administration RMM Remote Support Autotask PSA | Halo PSA CERTIFICATIONS: - Microsoft Certified: Administrator Expert - SC-300 (Identity & Access Administrator) - SC-900 & AZ-900 - AWS Certified cloud practitioner Whether you need ongoing MSP support, Microsoft 365 administration, or help delivering technical projects, I focus on resolving issues quickly, communicating clearly, and becoming a trusted extension of your IT team.

  • Windows Administration
  • Technical Support
  • Ticketing System
  • Cloud Services
  • System Administration
  • Office 365
  • Cloud Implementation
  • Microsoft Azure Administration
  • Microsoft Endpoint Manager
  • Cloud Security
  • Email Security
  • Microsoft Exchange Online
  • Information Security
  • Microsoft 365 Copilot
  • IT Support
  • Cloud Migration
  • DNS
  • Microsoft Exchange Server
  • Microsoft SharePoint Administration
  • Helpdesk
Mughis Uddin A.

Karachi, Pakistan

$30/hr
5.0
11 jobs

I'm a DevOps and Cloud Engineer with 3 years of professional experience building, automating, and maintaining reliable infrastructure. I hold an AWS Certified Cloud Practitioner certification and have recently earned the Rising Talent badge on Upwork. I focus on being solution-oriented and taking full accountability for outcomes, not just completing tasks. Recent clients have highlighted my ability to resolve issues efficiently and deliver reliable results. Certification: AWS Certified Cloud Practitioner Skills: Cloud: AWS (EC2, S3, RDS, ECS, IAM, CloudWatch, VPC, Route 53) Infrastructure as Code & CI/CD Tools: Terraform, Ansible, Jenkins Containerization & Orchestration: Docker, Kubernetes (YAML manifests) System Administration: Linux (Ubuntu, CentOS), Windows Server, Nginx, Apache, Firewall, SSH, VPN (OpenVPN) Monitoring & Logging:: Prometheus, Grafana, htop Security: SSL/TLS (Certbot), IAM, Firewalls, VPN Scripting & Automation: Bash, Python Version Control: Git, GitHub Troubleshooting & Problem Solving: Root cause analysis, incident response, performance tuning, scalability planning, network diagnostics I focus on practical, reliable solutions and clear communication. If you need help with cloud setup, CI/CD automation, containerized deployments, server troubleshooting, or infrastructure automation, let's talk. I'm happy to jump on a quick call to understand your project before you commit to anything.

  • Linux System Administration
  • Docker
  • Git
  • Terraform
  • LAMP Stack
  • CI/CD
  • Jenkins
  • Amazon Web Services
  • Ubuntu
  • Ansible
  • Kubernetes
  • NGINX
  • Microsoft Azure
  • Windows Server
  • Mail Server Implementation
  • MediaWiki
  • SSL Certificate
  • DNS
  • Troubleshooting
  • cPanel

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At A Glance: Windows Administration

If your business could benefit from streamlined operations, browse our professional online workplace for freelance Windows administrators and system engineers. An expert can ensure that your Windows infrastructure is running smoothly, up-to-date, and essentially secure. In addition, they can research and install the latest technology to enable your company to continually move forward. Understanding and maintaining operating systems allows businesses to run smoothly and staff to efficiently fulfill their roles. These engineers are responsible for the upkeep and operation of the firm’s computer systems, servers, network equipment, and any other relevant IT infrastructure.

A Windows administrator will have the ability to proactively communicate within the business team, troubleshoot, and be resourceful. They will also possess extensive knowledge and practical experience in Windows operating systems, security firewalls, scripting, email infrastructure, domain security, and SCRUM, with the best of them certified as Microsoft Certified Systems Engineers.

An efficient administrator can safeguard the network within a particular business, set up any mail or other servers the organization requires, and ensure there is always an Internet connection. They are essential to the success of any business with complex computer systems.

Find freelance Windows system administrators and Microsoft network engineers on Upwork. Post your Windows administration project for free, and hire Windows experts today.