Product Marketing Manager

Poseidon is building the data infrastructure for the next generation of AI. They are seeking a Product Marketing Manager to own the go-to-market strategy for new products and features, craft compelling narratives, and shape the marketing foundation of the company.

Responsibilities:

• Package technical products into compelling offerings: Turn raw datasets or technical features into productized narratives that feel tangible, exciting, and differentiated
• Technical storytelling: Create collateral such as pitch decks, product pages, blog posts, launch papers, and case studies that can speak both to technical and non-technical audiences
• Own product launch strategy: Lead launches for new products, features, and integrations, from research to messaging to distribution
• Evangelize to AI communities: Build awareness and credibility through grassroots, open-source-style engagement
• Collaborate cross-functionally: Work closely with Product, Engineering, and Growth to ensure alignment between what we build and how we communicate it
• Support revenue motion: Create marketing materials and positioning that accelerate bottoms-up adoption and early contract closures
• Measure and iterate: Track KPIs, gather user feedback, and refine messaging and campaigns based on real-world impact
• Shape Poseidon’s marketing foundation: Build the early marketing playbook, processes, and culture as one of the first PMMs

Requirements:

• 5 to 8 plus years in product marketing, ideally B2B, AI, or open-source ecosystems
• Early-stage PMM experience preferred
• Comfortable discussing data pipelines, APIs, or datasets in a way that can be quickly understood by engineers, researchers, and partners
• Ability to take boring data or functionality and turn it into compelling, well-designed product narratives and assets
• Strong writing, editorial, and design instincts for papers, decks, blogs, and visual marketing
• Experience engaging technical or grassroots ecosystems
• Experience launching products or features from zero, with measurable adoption or impact
• Thrives in fast-moving environments with minimal structure, able to wear multiple hats
• Belief in open, decentralized systems and empowering creators, developers, and users
• Understands how marketing drives adoption, pipeline, and early contracts