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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Proofpoint Messaging Security Engineer - **Company:** Abhyanth Solutions - **Location:** Washington, DC, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Linux, Email Filtering, Linux System Administration, Linux Servers, Mailing List, Simple Mail Transfer Protocols, Virtualization Technology, IronPort, Firewall Services Module, Cisco, Vmware - **Published:** August 28, 2026 - **Apply:** https://www.dice.com/job-detail/d614435c-5efc-440b-a3e4-a11606ffc1d7 ## About the Role We are seeking a Senior Proofpoint Messaging Security Engineer with extensive hands-on experience in enterprise email security environments. The ideal candidate will have strong expertise with Proofpoint, including IronPort-to-Proofpoint migrations, Proofpoint Messaging Security Gateway 8.x, firewall rule configuration, email block/quarantine management, Linux, and VMware., * Strong hands-on enterprise Proofpoint experience. * Proven experience leading or supporting IronPort-to-Proofpoint migrations. * Hands-on experience with Proofpoint Messaging Security Gateway 8.x. * Strong knowledge of Proofpoint firewall rules and email block/allow list management. * Experience managing email quarantine, release, and message-handling requests. * Deep understanding of MTA, SMTP, mail flow, and enterprise messaging environments. * Strong Linux Server administration and troubleshooting experience. * Hands-on experience with VMware/virtualized environments. * Strong troubleshooting skills across complex email security and messaging infrastructure. * Solid understanding of enterprise email security architecture, filtering, mail routing, and quarantine management. ## Description * Lead and support the migration of on-premises Cisco IronPort email security appliances to Proofpoint cloud-based email security, ensuring a smooth transition with minimal impact to enterprise email services. * Design, configure, implement, and maintain Proofpoint as an enterprise-grade email security solution. * Configure and manage Proofpoint firewall rules, email filtering policies, and enterprise block/allow lists. * Manage email quarantine operations, including responding to requests to quarantine, review, release, and manage messages within Proofpoint. * Configure, administer, and troubleshoot Proofpoint Messaging Security Gateway (MSG) environments. * Apply a strong understanding of Mail Transfer Agents (MTA), SMTP, mail flow, and enterprise messaging infrastructure to troubleshoot complex email delivery and security issues. * Provide hands-on support for Proofpoint Messaging Security Gateway 8.x environments. * Administer and troubleshoot applications and services running in Linux server environments. * Support and troubleshoot VMware and virtualized infrastructure associated with enterprise messaging and security systems. * Investigate and resolve complex enterprise email security, messaging, mail-flow, filtering, and delivery issues. * Maintain a strong understanding of email security architecture, filtering technologies, quarantine management, mail routing, and enterprise messaging infrastructure. * Collaborate with infrastructure, network, security, and messaging teams to ensure reliable and secure enterprise email operations. ## Related Videos - [You can’t hack what you can’t see](https://www.wearedevelopers.com/videos/41-you-can-t-hack-what-you-can-t-see) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Into the hive of eBPF!](https://www.wearedevelopers.com/videos/1199-into-the-hive-of-ebpf) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Finding Jobs in Germany](https://www.wearedevelopers.com/magazine/375-finding-jobs-in-germany) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025)