Principal Microsoft Exchange Infrastructure Consultant (Contract)

GEM Technologies

16h • $100 - $150 • Remote

About The Position

GEM Technologies is a cybersecurity-focused Managed Services Provider supporting organizations that depend on secure, reliable, and highly available technology infrastructure. We are seeking an experienced Microsoft Exchange consultant to serve as an extension of our engineering team on an as-needed basis. This is a long-term consulting opportunity for someone who enjoys solving complex technical problems, mentoring experienced engineers, and working in challenging enterprise environments. This position is not for routine Exchange administration or primarily managing Microsoft 365. We are looking for individuals experienced in recovering failed Exchange deployments, resolving production outages, designing enterprise messaging environments, and mentoring other engineers.

Requirements

• Significant hands-on experience in Microsoft Exchange Server 2013, 2016, 2019, and ideally Subscription Edition.
• Experience with Exchange architecture, DAGs, Hybrid Exchange, migrations, disaster recovery, and production troubleshooting.
• Proficiency in Exchange PowerShell.
• Experience with Active Directory, DNS, Microsoft Entra ID, and Entra Connect.
• Experience with Citrix NetScaler ADC (load balancing, SSL, authentication, Exchange publishing).
• Experience with Citrix Virtual Apps & Desktops.
• Experience with Windows Server infrastructure.
• Knowledge of enterprise networking concepts, certificates, mail flow, and security.
• Experience primarily focused on on-premises Microsoft Exchange Server.
• Must be legally authorized to work in the United States.
• Must reside within the United States.
• Must demonstrate expert-level Microsoft Exchange knowledge during the interview process.
• Must be comfortable mentoring engineers and documenting solutions.
• Must communicate clearly and professionally with technical team members.

Nice To Haves

• 10+ years supporting enterprise Microsoft Exchange environments.
• Served as the senior escalation resource for complex Exchange issues.
• Personally recovered failed Exchange implementations or production outages.
• Architected or significantly redesigned Exchange environments.
• Excellent troubleshooting methodology and root cause analysis skills.
• Strong communication skills with the ability to mentor experienced engineers.
• Experience working independently in unfamiliar environments.
• Has worked for a Managed Services Provider or consulting firm.
• Can quickly diagnose complex Exchange environments.
• Microsoft Exchange on prem experience.
• Can work independently and join calls when needed.

Responsibilities

• Serve as the highest level of Exchange escalation for our engineering team.
• Troubleshoot complex on-premises Microsoft Exchange issues in production environments.
• Review, architect, and improve Exchange infrastructure.
• Lead or assist with upgrades, migrations, disaster recovery, and hybrid deployments.
• Troubleshoot Exchange dependencies involving Active Directory, DNS, networking, storage, certificates, and virtualization.
• Support Exchange environments utilizing Citrix NetScaler ADC and Citrix Virtual Apps & Desktops.
• Mentor engineers by explaining findings, recommendations, and best practices.
• Participate in occasional after-hours maintenance and production incident response.

Benefits

• Hourly consulting rate $100–$150 per hour, based on experience, technical expertise, certifications, interview performance, and the complexity of the engagement.
• Hourly consulting rate $80 to $125 is negotiable and will be determined based on the consultant's experience, demonstrated technical expertise, certifications, and the scope and complexity of each engagement.

What This Job Offers

• Career Level: Senior
• Education Level: No Education Listed