Microsoft Exchange Administrator

Accelyst, LLC; United States; Remote; USD 90,000 - 130,000; Full time

Job summary

Accelyst is seeking an experienced Microsoft Exchange Administrator to manage enterprise messaging environments, including Exchange Server and Exchange Online, Microsoft 365, and identity services.

You will automate tasks with PowerShell, monitor mail flow, and support migrations and security configurations, collaborating with security, network, and IT teams. This remote, long-term role requires strong troubleshooting and communication skills.

Qualifications

• 5+ years of experience administering Microsoft Exchange environments.
• Strong hands-on experience with Exchange Online and Microsoft 365.
• Experience with Exchange Server 2016/2019 or similar.
• Strong knowledge of Active Directory and Entra ID/Azure AD.
• Proficiency in PowerShell scripting and automation.
• Strong understanding of SMTP, DNS, MX records, mail flow, connectors, and transport rules.
• Experience with SPF, DKIM, DMARC, and email security best practices.
• Experience supporting Exchange migrations and hybrid environments.
• Strong troubleshooting, analytical, and problem-solving skills.
• Experience with ITIL-based incident, problem, and change management.
• Excellent communication and collaboration skills.

Responsibilities

• Administer and support Microsoft Exchange Server and Exchange Online environments.
• Manage mailboxes, distribution groups, shared mailboxes, permissions, and mail policies.
• Perform Exchange migrations, upgrades, configurations, and troubleshooting.
• Manage Microsoft 365 messaging services and Exchange Online administration.
• Configure and troubleshoot mail flow, connectors, transport rules, and routing.
• Monitor messaging infrastructure and resolve performance, availability, and delivery issues.
• Administer AD/Azure AD/Entra ID and identity-related messaging configurations.
• Develop and maintain PowerShell scripts to automate tasks.
• Troubleshoot email delivery, authentication, spam, phishing, and other messaging issues.
• Support email security technologies including SPF, DKIM, DMARC.
• Implement backup, recovery, DR, and business continuity procedures for messaging environments.
• Maintain documentation and runbooks; collaborate with security and network teams.

Skills

Exchange Server

Exchange Online

PowerShell scripting

Active Directory / Entra ID

Mail flow & DNS

Email security concepts SPF/DKIM/DMARC

Tools

PowerShell

Microsoft 365 Admin Center

Azure AD

Job description

Job Description – Microsoft Exchange Administrator

Accelyst

Accelyst is an innovative AI Consultancy that leverages industry-specific AI Agents and leading-edge AI platforms to deliver integrated, secure, and ROI-optimized solutions. We combine deep industry and technical expertise to enable rapid deployment of innovative technology solutions that augment and automate client workflows.

Why Accelyst?

Join Accelyst to work in a dynamic, client-focused environment supporting enterprise technology initiatives. You’ll collaborate with experienced infrastructure and security teams while working with modern Microsoft technologies and enterprise messaging environments.

Job Summary

Accelyst is seeking an experienced Microsoft Exchange Administrator to manage, maintain, and support enterprise messaging environments. The ideal candidate will have strong experience with Microsoft Exchange Server, Exchange Online, Microsoft 365, Active Directory, PowerShell, and email security.

Job Roles and Responsibilities

• Administer and support Microsoft Exchange Server and Exchange Online environments.
• Manage mailboxes, distribution groups, shared mailboxes, permissions, and email policies.
• Perform Exchange migrations, upgrades, configurations, and troubleshooting.
• Manage Microsoft 365 messaging services and Exchange Online administration.
• Configure and troubleshoot mail flow, connectors, transport rules, and email routing.
• Monitor messaging infrastructure and resolve performance, availability, and delivery issues.
• Administer Active Directory, Azure AD/Entra ID, and identity-related messaging configurations.
• Develop and maintain PowerShell scripts to automate Exchange and Microsoft 365 administration tasks.
• Troubleshoot email delivery, authentication, spam, phishing, and other messaging-related issues.
• Support email security technologies including SPF, DKIM, and DMARC.
• Implement backup, recovery, disaster recovery, and business continuity procedures for messaging environments.
• Maintain technical documentation, operational procedures, and system configurations.
• Collaborate with security, network, infrastructure, and application teams to resolve complex issues.
• Participate in incident, problem, and change management processes.
• Provide technical support and guidance to users and IT teams.

Job Requirement Qualifications

• 5+ years of experience administering Microsoft Exchange environments.
• Strong hands-on experience with Exchange Online and Microsoft 365.
• Experience with Exchange Server 2016/2019 or similar enterprise Exchange environments.
• Strong knowledge of Active Directory and Entra ID/Azure AD.
• Proficiency in PowerShell scripting and automation.
• Strong understanding of SMTP, DNS, MX records, mail flow, connectors, and transport rules.
• Experience with SPF, DKIM, DMARC, and email security best practices.
• Experience supporting Exchange migrations and hybrid Exchange environments.
• Strong troubleshooting, analytical, and problem-solving skills.
• Experience with enterprise ITIL-based incident, problem, and change management.
• Excellent communication and collaboration skills.

Preferred Skills

• Microsoft Exchange Online / Microsoft 365 certifications.
• Experience with Microsoft Defender for Office 365.
• Experience with Exchange Hybrid deployments and migrations.
• Knowledge of Microsoft Purview, compliance, retention, and eDiscovery.
• Experience with enterprise monitoring and security tools.
• Strong documentation and technical communication skills.

Role: Microsoft Exchange Administrator

Work Mode: Remote

Duration: Long Term

Accelyst is an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to any characteristic protected by applicable law.