M365 Messaging / Active Directory / Azure / Engineer (5,000+ Users)

About

Elevate your career as a Senior Systems Engineer with a dynamic and forward-thinking team. This role offers the opportunity to work in a stable yet evolving enterprise environment where you will support and enhance large-scale infrastructure systems, drive modernization initiatives, and contribute to mission-critical technology operations. You ll be part of a collaborative team focused on innovation, reliability, and continuous improvement.

Qualifications

• Advanced proficiency in Windows, Linux, and VMware ESXi environments
• Extensive experience with Windows Server, Active Directory, and Group Policy administration
• Strong expertise in VMware vSphere infrastructure management
• Very strong hands-on experience with Exchange Online and Microsoft 365 administration
• Technical depth across Exchange, Microsoft 365, Active Directory, and Azure
• Experience with public cloud platforms such as AWS and Azure
• Solid understanding of networking fundamentals including TCP/IP, DHCP, DNS, and VLANs
• Strong troubleshooting and advanced problem-solving abilities across enterprise systems
• Experience supporting organizations through high-growth environments, including scaling from smaller to larger infrastructures
• M&A experience, including tenant migrations, integrations, and system consolidations
• Technological curiosity with interest or exposure to AI adoption and automation
• Excellent communication and interpersonal skills with a strong team-oriented approach
• Bachelor s degree in Information Systems or related field, or equivalent experience
• Minimum of 4+ years of relevant systems engineering experience
• Experience supporting large enterprise environments (5,000+ users preferred)
• Demonstrated experience managing infrastructure projects and initiatives

What You Ll Do

• Support and maintain enterprise Active Directory and identity services
• Administer Microsoft 365 and messaging systems across a large user base
• Own and optimize Exchange Online and messaging infrastructure (performance, security, reliability)
• Manage Windows Server environments and Group Policy configurations
• Support virtualization infrastructure using VMware vSphere / ESXi
• Troubleshoot complex infrastructure, cloud, and identity-related issues
• Assist in hybrid cloud operations spanning on-prem and cloud platforms
• Support M&A activities, including migrations, tenant integrations, and environment consolidation
• Participate in infrastructure upgrades, migrations, and modernization initiatives
• Evaluate and implement emerging technologies, including AI-driven tools and automation opportunities
• Ensure performance, availability, security, and scalability of core systems