Job Title: Sr. Systems Engineer (M365)
Location: Portsmouth, NH (Hybrid — onsite 2-3 days/week; only local candidates will be considered)
Employment Type: Full-time, Permanent
Company Overview
Our client is an organization with critical infrastructure supporting business operations 24/7/365, currently advancing major cloud migration and infrastructure modernization initiatives.
Project Description
We are seeking a Senior Systems Engineer, with a specific focus on M365, to play a key role in managing and advancing our client's virtual, cloud, and data center infrastructure. This position is responsible for maintaining critical systems that support business operations 24/7/365 while helping lead cloud migration efforts and infrastructure modernization initiatives. This role has a strong focus on Entra/M365 and requires experience in conditional access, CIS/SCuBA compliance, Intune, and hybrid join. This position includes a rotating on-call shift (1 week every 5 weeks).
Key Responsibilities
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Manage and advance virtual, cloud, and data center infrastructure supporting 24/7/365 operations
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Lead and support cloud migration efforts and infrastructure modernization initiatives
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Administer Entra/M365 environments, including conditional access, CIS/SCuBA compliance, Intune, and hybrid join
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Administer VMware environments, blade systems, and SAN technologies
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Manage Microsoft Windows Server administration and patch management
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Support Microsoft 365, Office 365, Azure, and AWS environments
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Manage virtual desktop infrastructure and enterprise monitoring platforms
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Support data center operations, infrastructure management, and disaster recovery practices
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Follow configuration management and change control processes
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Participate in rotating on-call shift (1 week every 5 weeks)
Mandatory Skills
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7+ years of experience supporting enterprise infrastructure in a 24x7 environment
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Strong experience with Entra/M365, including conditional access, CIS/SCuBA compliance, Intune, and hybrid join
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Extensive experience administering VMware environments, blade systems, and SAN technologies
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Strong knowledge of Microsoft Windows Server administration and patch management
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Experience supporting Microsoft 365, Office 365, Azure, and AWS environments
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Experience managing virtual desktop infrastructure and enterprise monitoring platforms
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Knowledge of data center operations, infrastructure management, and disaster recovery practices
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Strong troubleshooting skills across server, storage, virtualization, and cloud technologies
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Proficiency with scripting and automation tools such as PowerShell, Bash, or Python
