About the job
Postscript supports more than 18,000 Shopify and Shopify Plus merchants, including brands such as Brooklinen, Ruggable, True Classic, and Dr. Squatch. The platform helps e-commerce businesses build SMS marketing strategies, grow subscriber lists, refine messaging, support customer service, and drive sales and loyalty, all within one integrated system.
Founded in 2018, Postscript operates as a fully remote company with over 250 employees. The company is backed by investors including Greylock and Y Combinator.
Role overview
The Senior Engineering Manager, Messaging Channels, leads a team of eight product and platform engineers. This group owns the messaging infrastructure that supports every Postscript product. Their work covers several key areas:
- Flow Builder, an automation tool for managing customer journeys
- A high-volume SMS campaign management engine used by major direct-to-consumer brands
- The core messaging platform and infrastructure shared across all Postscript products
- Expanding into additional communication channels to reach customers on more platforms
The team manages its own on-call rotation and maintains high standards for operational reliability.
What you will do
- Manage and develop engineers working on messaging infrastructure
- Oversee day-to-day operations, including team leadership, coaching, and project delivery
- Drive projects to scale and evolve backend systems for high-volume messaging
- Support efforts to expand into new communication channels
- Maintain operational excellence through dedicated on-call practices
Tech stack
- Python as the primary backend language
- AWS architecture
- Go for supporting services
- Kafka, Postgres, and MongoDB
These systems are built to handle the demands and complexity of e-commerce messaging at scale.
Requirements
- Experience leading senior engineers and small teams
- Background managing internal platforms for engineering teams
- Strong focus on operational excellence and distributed systems
- Experience with high-throughput, scalable infrastructure
- Interest or experience with AI-driven product features is a plus
Location
This is a fully remote position open to candidates based in the US or Canada.

