Sr. Systems Engineer
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- Contract Performance Period
- September 23, 2026 - December 31, 2026
- Job Location
- Washington, DC location(s) (Metro Access) On-Site 5 days/week.
- Direct Hire
- Term: through 31/12/2026, with a strong possibility of extension
- Pay Range
- Depending on Experience
- Travel Requirements
- Washington, DC location(s) (Metro Access) On-Site 5 days/week.
- Working Remotely
- Not possible
- Job ID
- 1588
Project Description
We are seeking an experienced Email Security Engineer to lead the migration from on-premises IronPort email security appliances to a Proofpoint cloud-based email security solution, ensuring a seamless transition with minimal disruption to email services.
This is a high-impact role requiring expert-level knowledge of Proofpoint as an enterprise service within a large, complex organization.
Location: Washington, DC | US Citizenship is Required
Qualification Requirements
- Expert-level experience designing, configuring, and maintaining Proofpoint as an enterprise email security service
- Deep understanding of MTA and Proofpoint Messaging Security Gateway (including version 8.x)
- Experience with Linux Server administration
- Experience with VMware virtualization environments
Skills Requirements
- Enterprise Proofpoint design, configuration, and administration
- Proofpoint firewall rules configuration and block list management
- Email quarantine and release request handling
- IronPort email security appliance experience
- Cloud-based email security migration planning and execution
- MTA and Proofpoint Messaging Security Gateway expertise (including version 8.x)
- Linux Server administration
- VMware virtualization
Responsibilities
- Lead the end-to-end migration from on-premises IronPort email security appliances to Proofpoint cloud-based email security, ensuring minimal disruption to email services
- Design, configure, and maintain Proofpoint as an enterprise email security service
- Set and manage Proofpoint firewall rules and maintain block lists
- Respond to requests to quarantine or release email in a timely and accurate manner
- Administer and support Proofpoint Messaging Security Gateway (including version 8.x)
- Support and maintain Linux Server and VMware environments associated with the email security platform