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Senior Product Marketing Manager
Marketing & Communications, Product
North America
Posted on Jul 17, 2026
Meet Siena
Siena is the Agent of Record for consumer brands. One agent that owns the entire customer journey, running on a shared intelligence layer no point tool can replicate.
Consumer brands run ten or more disconnected tools to manage their customers. We collapse that stack into a single agent. It started with support, the hardest surface a brand has, and it expands from there: Shopping Agent, Social Agent, Siena working alongside a brand's own operators. One agent across every surface, with shared memory, shared context, and shared tools.
Hundreds of brands already run real customer volume on Siena in production. This is built, working, and growing, and we are racing to build what comes next.
The team
We are a small, fully distributed, global team. We have built leverage into how we work, which is what lets a team this size move at the speed we do.
We hire athletes. Everyone here owns real outcomes, defaults to writing over meetings, communicates with directness, and acts the moment they see something worth acting on. Low ego, high standards, fast clock.
If you want to own real problems rather than close tickets, keep reading.
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 extensive team resources or agencies to execute. This role requires scrappy, hands-on execution using AI tools to scale yourself.
You prefer brand marketing over performance-driven work. Everything ties back to pipeline, win rates, and revenue.
You're not comfortable with ambiguity. We're building this function from scratch.
Why Siena?
Real ownership. You will own problems, not tasks, with the autonomy to solve them your way and the trust to do it without a manager in your inbox.
Work that ships and matters. What you build reaches real consumer brands fast.
A category we are creating. The Agent of Record is new ground, with unsolved problems and cutting-edge models, not a crowded field to compete in.
A team that respects your judgment. Globally distributed, async-first, low bureaucracy. We hire adults and treat you like one.
Great salary plus equity or stock grants. Own a piece of what you build.
Learning budget. If you are growing, so are we.
AI-fluency by default. Few places will push your work with production AI further or faster.
Our values
The people who thrive here are curious, customer-obsessed, and take ownership without being asked. They fix problems first and explain later. They're direct about feedback—both giving and receiving it—because they care more about getting things right than being polite.
They maintain high standards while moving at startup speed, and they build real relationships with teammates because they know that's how great work gets done. When things get tough, they adapt and keep pushing forward.
Our approach to AI
The people who thrive here treat AI like a natural extension of themselves. They've built their own ecosystem of agents - some for research, others for debugging, writing, analysis, or writing code. They know which AI works best for what problem.
Everyone gets premium accounts (ChatGPT, Claude, Perplexity Pro, Cursor, Lovable) plus a quarterly budget for new tools. But the magic happens in how we share knowledge. Demo days where someone shows off a clever workflows. Slack threads about which model handles a specific use case better. Learning from each other's AI workflows.
At Siena, we’re not just looking for people who can do a job. We’re looking for people who want to break boundaries, create the future, and reshape industries. If that’s you, we look forward to your application.
We use AI-assisted screening tools as part of our hiring process. All decisions are made by humans. You can request a human-only review at talent@siena.cx.
Siena provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.