Talent.com
Systems Engineer

Systems Engineer

ASCENDINGNew York, NY, US
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Systems Engineer Exchange / M365 / Proofpoint

We're looking for a Senior Systems Engineer with deep expertise in on-premises Exchange, Microsoft 365, and Proofpoint to lead the management, optimization, and security of our enterprise email infrastructure. You'll play a pivotal role in ensuring seamless email operationsfrom migrations to threat mitigationwhile leveraging automation and best practices to uphold reliability and compliance.

What You'll Do

  • Design & Manage Email Systems : Deploy, maintain, and optimize Exchange Server (on-prem / hybrid) and Microsoft 365 environments, ensuring high availability and performance.
  • Lead Migrations : Execute smooth migrations between on-prem Exchange and M365 with minimal downtime and data integrity.
  • Secure Email Infrastructure : Configure and manage Proofpoint solutions (filtering, encryption, DLP) and enforce protocols like DMARC, DKIM, and SPF.
  • Troubleshoot & Protect : Resolve complex email flow issues, investigate security threats, and collaborate with security teams to mitigate risks.
  • Automate & Innovate : Streamline operations via PowerShell scripting for Exchange, M365, and Proofpoint tasks.
  • Document & Guide : Maintain detailed system documentation and share best practices with cross-functional teams.

What You Bring

  • 7+ years of hands-on experience with Exchange Server (20132019, Exchange Online) and Microsoft 365 in enterprise environments.
  • Proven mastery of Proofpoint administration (policies, threat protection, encryption).
  • Strong scripting skills (PowerShell) and expertise in Active Directory / Azure AD for identity management.
  • Deep knowledge of email security protocols (SPF, DKIM, DMARC) and anti-phishing measures.
  • Ability to work independently in a remote setting, solving problems with minimal supervision.

    • Nice-to-Haves

  • Experience with tenant-to-tenant migrations or Microsoft Defender for Office 365.
  • Networking knowledge related to email traffic (SMTP, firewalls).
  • Certifications like MS-102, MS-203, or Proofpoint Certified Protection Professional.
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    System Engineer • New York, NY, US