Senior Systems Engineer

We are seeking a Senior Systems Engineer for a 12-month contract role based in Tysons Corner, Virginia. In this position, you will lead the migration from on-premises IronPort email security appliances to Proofpoint cloud-based email security, ensuring seamless transition with minimal disruption to email services.

Responsibilities

• Lead migration from on-premises IronPort email security appliances to Proofpoint cloud-based email security
• Design, configure, implement, and maintain Proofpoint as an enterprise email security service
• Configure Proofpoint firewall rules and maintain email block lists
• Respond to requests to quarantine, release, and manage emails within Proofpoint
• Troubleshoot complex enterprise email security and messaging issues
• Support enterprise messaging infrastructure and mail flow operations

Qualifications

• Required
• Expert-level experience designing, configuring, implementing, and maintaining Proofpoint as an enterprise email security service
• Strong experience configuring Proofpoint firewall rules and maintaining email block lists
• Deep understanding of Mail Transfer Agents (MTA) and Proofpoint Messaging Security Gateway
• Hands-on experience with Proofpoint Messaging Security Gateway 8.x
• Strong experience with Linux Server environments
• Experience with VMware/virtualized environments
• Strong understanding of email security architecture, mail flow, filtering, quarantine management, and enterprise messaging infrastructure
• Preferred
• Experience responding to requests to quarantine, release, and manage emails within Proofpoint