What are the responsibilities and job description for the Messaging Platform Engineer (Linux & Postfix) position at Elliot Partnership?
Messaging Platform Engineer
New York, NY (Hybrid, 3 days in office)
Top-tier compensation package
Join an elite technology group where systems engineering is a competitive advantage. They treat infrastructure as code, and prioritize reliability above all else, and seeking a Messaging Platform Engineer to architect the next generation of their critical messaging grid. You’ll move beyond managing servers to building the CI/CD pipelines, Observability stacks, and Event-Driven APIs that power the firm's global communication.
The Role
This is not a standard administration role; it is a Production Engineering position. You will own the reliability and architecture of a complex hybrid stack (Linux/Postfix Microsoft Exchange). You will partner directly with software developers to decouple legacy monolithic systems and replace them with modern, API-first microservices.
Key Responsibilities:
-
Engineer high-availability, stateless Postfix clusters on Linux. Implement modern Infrastructure as Code (IaC) practices using Terraform or Ansible to manage configuration drift and deployment.
-
Move beyond ‘up/down’ monitoring. Build sophisticated dashboards (Prometheus, Grafana, ELK) to visualize queue latency, delivery rates, and SMTP performance in real-time.
-
Lead the architectural shift from legacy EWS Polling to Event-Driven Graph API Webhooks. Architect the "glue" code in Python or Go that allows internal apps to send mail without touching the backend directly.
-
Programmatically manage Sender Reputation. Automate IP warming strategies and enforce DMARC/DKIM/SPF standards across thousands of domains to ensure 99.99% deliverability.
-
Manage the edge defense layer (Proofpoint/Mimecast) using policy-as-code where possible, focusing on threat detection and automated remediation pipelines.
Who you are:
-
7 years of Engineering experience in high-volume messaging or complex infrastructure environments.
-
Deep comfort with the Linux kernel, TCP stack tuning, and Postfix/MTA configuration management.
-
Proven experience writing production code (Python, Go, or advanced PowerShell Core) to wrap APIs and automate workflows. You don't just run scripts; you build tools.
-
Experience managing infrastructure via Terraform, Ansible, or similar config management tools.
-
You understand SMTP, TLS, and DNS at the packet level and can debug complex handshake failures in a Wireshark trace.