Postscript is an SMS and messaging platform designed for ecommerce brands on Shopify. They are seeking a Senior Product Manager, AI to lead the development of a new AI product from concept to market, collaborating with various teams to create a valuable AI-native experience for Shopify merchants.
Responsibilities:
- Own the end-to-end product lifecycle for a new AI product, from discovery through launch and iteration
- Define product vision, strategy, and roadmap grounded in deep customer understanding and AI/ML feasibility
- Partner with MLE and prompt engineering to evaluate AI model capabilities, define guardrails, and design human-in-the-loop experiences
- Design and run rapid experiments to validate hypotheses about AI-powered features and customer value
- Write clear product specs, success criteria, and evaluation frameworks for AI features (including accuracy, safety, and user trust metrics)
- Collaborate cross-functionally with engineering, design, CSMs, and leadership to ship and iterate
- Develop and maintain a competitive understanding of the AI landscape in ecommerce/SMS
- Serve as the internal and external evangelist for the AI product vision
Requirements:
- 5+ years of product management experience, with 2+ years working on AI/ML-powered products
- Direct experience taking a product from zero-to-one (greenfield builds, not just incremental optimization)
- Experience in ecommerce SaaS, martech, or messaging platforms is highly preferred
- Deep technical fluency with AI/ML concepts: you can discuss model architectures, prompt engineering, evaluation metrics, and data pipelines with engineering partners
- Strong product intuition for when AI adds real value vs. when it doesn't — you are not an AI hype person, you are an AI pragmatist
- Demonstrated ability to ship fast, learn from data, and iterate — you prefer shipping v1 over perfecting a PRD
- Excellent written and verbal communication; you can make complex AI concepts accessible to merchants, CSMs, and executives
- Hands-on experience using AI tools (ChatGPT, Claude, Copilot, etc.) to amplify your own PM work