Hire the Best Certified Microsoft 365 Security Administrators

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Shahil A.

Reston, Virginia

$50/hr
5.0
4 jobs

Microsoft 365 | Azure | Windows Server | VMware | Network & Infrastructure Consultant I help businesses design, secure, migrate, and maintain reliable IT infrastructure that keeps their operations running smoothly. Whether you need Microsoft 365 administration, Windows Server support, Azure cloud management, network implementation, or cybersecurity improvements, I deliver practical, well-documented solutions with minimal downtime. I am a Senior Network/System Admin with extensive experience supporting enterprise and small-to-medium business environments across cloud, on-premises, and hybrid infrastructures. I have successfully planned, deployed, migrated, secured, and maintained Microsoft 365 environments, Windows Server infrastructure, Azure resources, VMware virtualization, enterprise networking, backup solutions, and cybersecurity platforms. I have worked on projects ranging from Microsoft 365 administration and Exchange Online troubleshooting to complete infrastructure deployments, server migrations, firewall implementations, disaster recovery planning, virtualization, storage management, and cloud modernization. Core Services: Microsoft 365: Microsoft 365 Administration Exchange Online Microsoft Entra ID (Azure AD) Microsoft Teams SharePoint Online OneDrive Microsoft Intune Conditional Access Multi-Factor Authentication (MFA) Microsoft Defender Tenant Security Reviews Mail Flow Troubleshooting Microsoft 365 Migrations Windows Infrastructure Windows Server 2012/2016/2019/2022 Active Directory Group Policy DNS DHCP File Servers Print Servers Remote Desktop Services Windows Server Migration Server Hardening Performance Optimization Azure Cloud Azure Virtual Machines Azure Virtual Networks Azure Storage Azure Backup Hybrid Identity Azure Networking Azure Security Resource Management Virtualization VMware vSphere ESXi Hyper-V Virtual Machine Deployment Cluster Administration Storage Integration Networking Fortinet Firewalls Cisco Switching & Routing VLAN Design VPN Configuration Network Security Site-to-Site VPN Wireless Networking Network Troubleshooting Cybersecurity Microsoft Defender Endpoint Security Vulnerability Remediation Security Hardening Backup Validation Disaster Recovery Planning Email Security Identity Protection Security Best Practices Hardware Support/Enterprise Technologies Microsoft 365 Azure Windows Server VMware Hyper-V Cisco UCS Dell EMC Pure Storage Qumulo Fortinet Cisco Nexus AWS Microsoft SQL Server

  • Network Design
  • Network Monitoring
  • Network Engineering
  • Network Administration
  • Network Equipment
  • Cloud Architecture
  • Cloud Computing
  • Network Analysis
  • System Administration
  • Network Access Control
  • Security Testing
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 over 9,500 hours of proven remote IT experience, maintaining a 100% Job Success Score on Upwork, including three years supporting a Canadian MSP and more than 2 years supporting US-based MSPs 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.

  • 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
  • Windows Administration
  • Cloud Migration
  • DNS
  • Microsoft Exchange Server
  • Microsoft SharePoint Administration
  • Helpdesk
David L.

Sylvan Lake, Canada

$12/hr
5.0
1 jobs

Microsoft 365 & Exchange Expert | Email Security | Mail Flow | PowerShell Automation | L3 Support Building My Upwork Portfolio Currently growing my presence on Upwork, offering competitive rates while delivering enterprise-level support backed by 10+ years of real-world experience managing large-scale environments (100K+ users). I’m a Senior Messaging Engineer specialized in Microsoft 365 and Exchange (On-Prem & Online), focused on mail flow, email security, and advanced troubleshooting (L3). I help organizations keep their messaging environments secure, stable, and optimized. What I can help you with -Microsoft 365 / Exchange Exchange Online & Hybrid environments Mail flow troubleshooting (connectors, routing, delivery issues) Transport rules analysis and optimization Mailbox issues, outages, and escalations (L3 support) -Email Security Phishing & spam investigations Junk email analysis (why emails are classified as spam) Microsoft Defender / EOP troubleshooting Email authentication (SPF, DKIM, DMARC) -Automation (PowerShell) Task automation & reporting scripts Mail flow and message trace analysis Bulk operations and admin tasks Custom scripts for monitoring and troubleshooting -Migrations & Integrations Microsoft 365 migrations (cutover, hybrid, staged) Mailbox moves and post-migration validation Outlook / mobile / client connectivity support Why work with me 10+ years supporting enterprise messaging environments Real L3 experience handling critical issues and escalations Strong troubleshooting mindset (I don’t guess, I find root cause) Focused on security + stability + automation Tech Stack Microsoft 365 | Exchange Online | Exchange On-Prem Microsoft Defender | EOP | Cisco IronPort PowerShell | Microsoft Graph API Active Directory | Entra ID Outlook | Teams | SharePoint | OneDrive

  • Microsoft Outlook
  • Microsoft Teams
  • Microsoft Exchange Server
  • Microsoft Windows PowerShell
  • Microsoft Exchange Online
  • Email Security
  • Microsoft Intune
  • Microsoft Power Automate
  • Email Support
  • Messaging System
  • Load Balancing
  • SMTP
  • Microsoft Active Directory
  • Microsoft Message Queue Server
  • Customer Service
  • Customer Satisfaction
  • PHP Script
Syed J.

Karachi, Pakistan

$15/hr
5.0
1 jobs

Certified Azure & AWS Solutions Architect & Cloud Migration Expert Cloud Implementation/Migration Strategy | Azure Virtual Desktop Specialist | Secure Infrastructure & Engineering | Azure Networking, VPN, and Azure Services Configuration. - I simply help you get to the Cloud with Azure. - 9+ years of professional IT experience. Certifications: - Microsoft Certified: Azure Fundamentals - Microsoft Certified: Azure Security Engineer - Microsoft Certified: Azure Administrator - Microsoft Certified: Microsoft 365 Security Administration - Amazon Certified: AWS Solution Architect -Amazon Certified: Amazon Web Services Cloud Practitioner Domain Expertise: - On-Premises to Azure Migration - P2S/S2S VPN gateway configuration - Windows server, IIS, Active Directory, AD Connect administration - Azure Virtual Desktop implementation - Azure Managed Database with auto-scaling - Highly available multi-region architecture - Windows Active Directory to Azure Active Directory hybrid identity solutions - Web Application to Azure App Service Migration - Cost Management + Billing - Identity & Security Management - Microsoft Defender for Cloud - Microsoft Intune. Example Microsoft 365 services I will help you with: - Compliance and Security - Microsoft Exchange Online - Microsoft Teams - Microsoft SharePoint - Microsoft Office Let's initiate a chat and see if we can have a magical collaboration started. Thanks.

  • Microsoft Azure
  • Tech & IT
  • Technical Project Management
  • Windows Server
  • Windows 10 Administration
  • CloudLinux
  • Azure DevOps
  • Database
  • Azure App Service
  • Windows 11 Administration
  • Linux
  • AWS CloudFront
  • AWS Fargate
  • AWS Application
Anand L.

Vadodara, India

$20/hr
5.0
1 jobs

Technology should make your work easier, not harder. I help teams cut through IT headaches with clear solutions and dependable support, backed by 10+ years of hands‑on experience in Microsoft 365 and cloud platforms. I specialize in supporting startups and small teams who don’t have a full-time IT department. Whether it’s troubleshooting, supporting, or migrating to the cloud, I provide solutions that keep costs predictable and downtime minimal. Clients appreciate my clear communication and proactive approach — I don’t just fix problems, I help prevent them. I’m certified in AZ‑104 (Azure Administrator), MS‑102 (Microsoft 365 Administrator), and MCP (Microsoft Certified Professional), which means I bring both proven technical expertise and a client-first mindset to every project. If you’re looking for dependable IT support without the overhead, I’d be glad to help.

  • Technical Support
  • Customer Service
  • Network Administration
  • DNS
  • Microsoft Windows
  • Desktop & Laptop Support
  • Troubleshooting
  • Office 365
  • Email
  • Computing & Networking
  • Microsoft Intune
  • Microsoft Active Directory
  • Microsoft Teams
  • Microsoft SharePoint Administration
  • Remote Connection Support
  • IT Support
  • Desktop Support
  • Helpdesk
  • Email Support
  • Microsoft Azure Administration
Ralph Angelo V.

Antipolo, Philippines

$20/hr
5.0
3 jobs

Specializations: - Office 365 Administration - DNS Management - Exchange Online - SharePoint/OneDrive - Teams - Azure Active Directory - Azure AD Connect - PowerShell - Office Apps and Deployment

  • DNS
  • Microsoft Windows PowerShell
  • System Administration
  • Microsoft Active Directory
  • Office 365
  • Microsoft Azure
  • Microsoft Office
  • Microsoft Certified Professional
  • Tech & IT
  • Microsoft Teams
  • Microsoft Exchange Online
  • Microsoft SharePoint Administration

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What does a Certified Microsoft 365 Security administrator do?

A certified microsoft 365 security administrator plans, implements, and monitors security controls across microsoft 365 and hybrid environments. This role secures identity, data, and devices by configuring microsoft entra id, deploying defender products, and managing compliance policies in purview. The administrator responds to threats using sentinel playbooks and maintains strict access governance through conditional access rules.

  • Configure microsoft entra id to manage identity and access for hybrid environments. You set up authentication methods, troubleshoot entra connect sync issues, and enforce multi-factor authentication. Implement conditional access policies that require device compliance before granting users entry to corporate resources. Manage privileged identity management to control high-risk administrative access and review risk events regularly.
  • Deploy and operate the microsoft defender suite to protect identity, endpoints, and collaboration workloads. You install and configure defender for office 365 to filter malicious emails and links. Monitor defender for endpoint alerts to detect suspicious activities on user devices. Investigate incidents in defender for identity to spot lateral movement or compromised accounts within your network.
  • Plan and configure microsoft sentinel for microsoft 365 to centralize security monitoring. You connect data sources to sentinel and create analytics rules to detect specific threats. Build and test automated playbooks that trigger immediate responses when high-severity alerts occur. Review these automated actions to ensure they remediate threats without disrupting legitimate business operations.
  • Implement information protection and governance using microsoft purview. You create sensitivity labels that classify documents based on their content and risk level. Configure data lifecycle management policies to retain or delete records according to legal requirements. Monitor label usage in purview explorers to verify that employees apply the correct classifications to sensitive data.
  • Manage firewall configurations to restrict unauthorized network traffic to microsoft 365 services. You define rules that allow only trusted ip addresses to access admin portals. Block connections from known malicious sources to reduce the attack surface. Regularly audit these firewall rules to remove outdated entries and maintain optimal security posture.

How to hire a Certified Microsoft 365 Security administrator on Upwork

Step 1: Post a job

Define your security requirements clearly to attract qualified administrators who can protect your hybrid environment. The Job Post Generator powered by Uma™, Upwork's Mindful AI helps you draft a precise description in seconds. Describe your needs in a few sentences and Uma drafts a job post for the role. You can write a new post, update a saved draft, or reuse an existing post.

  • Specify tasks such as configuring Microsoft Entra ID conditional access policies and troubleshooting authentication sync issues.
  • List required experience with Microsoft Defender for Endpoint and Office 365 threat protection monitoring.
  • Include deliverables like implementing sensitivity labels in Microsoft Purview and setting up data retention rules.

Step 2: Evaluate candidates

Look for proven experience in securing Microsoft 365 workloads and managing compliance controls. Uma can run instant video interviews and build shortlists with side-by-side comparisons to help you assess technical fit quickly.

  • Review portfolios for evidence of deployed Sentinel playbooks and managed incident response workflows.
  • Check for documented success in implementing multi-factor authentication and device compliance policies.
  • Verify hands-on experience with firewall configurations and hybrid identity governance structures.

Step 3: Interview your top choices

Discuss specific security scenarios to gauge their problem-solving approach and technical depth. Interviews can be scheduled and conducted within Upwork Messages with an immediate transcript and summary after each one.

  • Ask how they troubleshoot Entra Connect sync errors in complex hybrid environments.
  • Request examples of how they configured Defender for Identity to detect lateral movement.
  • Discuss their method for testing conditional access policies before enforcing them globally.

Step 4: Agree on scope and begin work

Set clear milestones for security implementation and ongoing monitoring tasks. Use Upwork Messages and the contract workroom for communication and project management, plus identity verification, payment protection, hourly tracking, and project funds for security.

  • Define milestones for completing initial security audits and deploying baseline protection controls.
  • Agree on regular reporting intervals for threat detection metrics and compliance status updates.
  • Establish protocols for accessing admin centers and handling sensitive configuration changes securely.

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The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.

How much does hiring a Certified Microsoft 365 Security administrator cost?

$500-$1,500 per project is a typical range for focused Certified Microsoft 365 Security administrator work. Final pricing depends on scope, technical complexity, required integrations, source-material quality, revision needs, and the freelancer's experience level.

Identity and access configuration

$500-$1,200/project

Entry-level to mid-level
  • Configured conditional access rules and MFA settings
  • Verified Entra Connect synchronization for hybrid environments
  • Documented identity protection status and risk events

Threat protection deployment

$1,200-$2,500/project

Mid-level
  • Deployed Defender for Endpoint and Office 365 controls
  • Configured monitoring thresholds and remediation playbooks
  • Compiled threat protection configuration documentation

Information governance setup

$2,500-$4,500/project

Mid-level to senior-level
  • Defined sensitivity labels and data classification types
  • Configured Purview data lifecycle and retention rules
  • Mapped governance controls to regulatory requirements

Sentinel integration

$4,500-$7,000/project

Senior-level
  • Provisioned Sentinel workspace and connected data sources
  • Automated threat response workflows using logic apps
  • Authored incident response procedures and dashboard views

Advanced security architecture

$7,000-$12,000/project

Expert-level
  • Designed comprehensive Zero Trust security framework
  • Implemented Privileged Identity Management and just-in-time access
  • Generated full security posture assessment and remediation roadmap

Frequently asked questions

Is hiring a Certified Microsoft 365 Security administrator worth it?

For most businesses, yes: hiring a Certified Microsoft 365 Security administrator is worthwhile. This specialist configures identity protections and threat monitoring tools that generic IT staff may overlook. They implement conditional access policies and manage Defender alerts to reduce security risks.

How do I evaluate Certified Microsoft 365 Security administrator candidates?

Look for hands-on experience with Microsoft Entra ID and specific examples of configured conditional access policies. Ask candidates to describe how they troubleshoot authentication issues in hybrid environments or set up sensitivity labels in Microsoft Purview.

What tasks does a Certified Microsoft 365 Security administrator handle?

This role plans and implements security controls across Microsoft 365 workloads, including identity management and threat protection. They configure Microsoft Sentinel for monitoring and manage data lifecycle settings in Microsoft Purview.

Which tools does a Certified Microsoft 365 Security administrator use?

They work primarily with Microsoft Entra ID for identity governance and the Microsoft Defender suite for threat detection. These administrators also use Microsoft Sentinel for security operations and Microsoft Purview for information protection.