Senior Systems Engineer

Summary

Join our team as a Senior Systems Engineer and manage our enterprise email systems. You will be responsible for maintaining and optimizing on-premises Exchange, Microsoft 365, and Proofpoint. This contract-to-hire position is fully remote, preferably in the EST time zone. Responsibilities include designing, implementing, and maintaining email solutions, performing migrations, managing Proofpoint security, and troubleshooting email issues. You will also work with Active Directory and Azure AD, implement security best practices, and automate tasks using PowerShell. This role requires extensive experience with Exchange Server, Microsoft 365, and Proofpoint.

Requirements

• 7+ years of experience as a Systems Engineer specializing in Exchange Server and Microsoft 365
• Expertise in Microsoft Exchange (2013, 2016, 2019, and Exchange Online), including hybrid environments
• Strong experience with Proofpoint administration, including email filtering, DLP, and encryption
• Proficiency in PowerShell scripting for automation and system management
• Hands-on experience with Active Directory (AD), Azure AD, and identity management
• Familiarity with email security protocols (SPF, DKIM, DMARC) and anti-phishing protections
• Excellent problem-solving skills and ability to work independently in a remote environment

Responsibilities

• Design, implement, and maintain Microsoft Exchange Server (on-premises and hybrid) and Microsoft 365 email solutions
• Perform migrations between on-prem Exchange and Microsoft 365, ensuring minimal downtime and data integrity
• Manage and configure Proofpoint email security solutions, including policies, encryption, filtering, and threat protection
• Monitor and troubleshoot email flow, performance issues, and security threats across the enterprise
• Work with Active Directory (AD), Azure AD, and authentication protocols (OAuth, SAML, MFA) to support email security and access management
• Implement email security best practices, including DMARC, DKIM, SPF, and transport rules
• Provide advanced troubleshooting for email-related incidents, collaborating with security teams to mitigate risks
• Automate administrative tasks using PowerShell for Exchange, Microsoft 365, and Proofpoint
• Develop and maintain documentation, including system configurations, processes, and troubleshooting guides

Preferred Qualifications

• Experience with email migrations (on-prem to cloud, tenant-to-tenant)
• Knowledge of Microsoft Defender for Office 365 and advanced email security configurations
• Familiarity with networking concepts related to email traffic and security
• Microsoft and Proofpoint certifications (e.g., MS-102, MS-203, Proofpoint Certified Protection Professional) are a plus

Benefits

Fully remote work setup