Product Marketing Manager

Headquarters: New York Meet Siena Siena is the first intelligence layer for customer experience. We're creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn't just automate support; it powers shopping agents, builds persistent customer memory, generates actionable business insights, and creates empathetic interactions that feel human. We're transforming how businesses understand and connect with their customers, turning every interaction into intelligence that makes the next one better. The team We're a small, distributed team that punches way above our weight. Every person here has outsized impact because we've built leverage into everything we do. This philosophy makes us faster and, frankly, more fun to work with. If you're excited about building something that doesn't exist yet, keep reading. We're building agents that don't just respond to customers—they remember them, learn from every interaction, and connect experiences across channels. About the Role This role is built for someone who bridges the gap between customer wins and sales ammunition—turning product launches into market moments, customer stories into case studies, and competitive situations into wins. You'll work directly with our co-founders and GTM team to create the systematic marketing infrastructure that drives enterprise deals. If you have experience turning B2B customer success into compelling marketing assets that close deals, this is your opportunity to build a marketing function from the ground up. What You'll Do Own end-to-end product launches—external market releases and internal team education—with full positioning, enablement, and amplification. Manage complete customer success story lifecycle from identification through interviews, content creation, legal approvals, and distribution. Build and run Siena Academy, creating curriculum that drives customer adoption and product value. Create competitive intelligence system including battlecards, takedown decks, and positioning frameworks that help sales win. Develop ROI calculators and business case materials that articulate value differentiation. Build visual asset library with case studies, one-pagers, before/after comparisons, and templates sales can use immediately. Establish tight feedback loops with sales, CS, and product to understand which assets drive pipeline and close deals. Track marketing asset usage, pipeline impact, win rates, and revenue attribution to optimize what's working. Who You Are 3-5+ years in product marketing at B2B SaaS companies, ideally enterprise. Proven track record creating marketing assets that directly impacted pipeline, win rates, or deal velocity. Experience building customer education programs or academies from scratch. Power user of AI tools like Claude, ChatGPT, Midjourney, Lovable, v0 to scale output and quality. Skilled at building custom AI workflows and prompts that enhance marketing productivity. Deep understanding of enterprise sales cycles and what sales teams need to close deals. Highly execution-focused with bias toward shipping fast and iterating based on feedback. Data-driven approach to measuring what works and doubling down on high-impact activities. Bonus Points Experience marketing AI, automation, or customer experience products. Background in competitive intelligence and creating materials that win competitive deals. Built customer training programs, online academies, or certification systems. Familiarity with sales enablement tools and CRM systems to track asset impact. Experience with no-code/low-code tools for landing pages, calculators, or interactive experiences. Do Not Apply If You want to stay strictly within a defined scope. Product marketing is ever-evolving and requires tackling different projects that impact revenue and retention across the entire customer lifecycle. You need extensi