Siena AI. logo

Head of Growth

Job Overview

Location

New York

Job Type

Full-time

Category

Marketing

Date Posted

May 22, 2026

Full Job Description

đź“‹ Description

  • • Own the full spectrum of growth for Siena AI, including new customer acquisition, existing customer expansion, retention, and product-led growth across all channels.
  • • Build and lead the growth function from the ground up, designing demand creation strategies for brand, content, social, paid advertising, events, and strategic partnerships.
  • • Turn Siena’s 130+ existing customers into a primary growth lever through customer marketing, co-marketing initiatives, reference programs, and community building.
  • • Lead end-to-end product launches, crafting positioning, messaging, distribution plans, and go-to-market motions that turn every release into a market-defining moment.
  • • Define and own the category of "CX operating system for brands," shaping how the market understands, adopts, and demands Siena’s AI-powered customer experience platform.
  • • Build the brand narrative and momentum that positions Siena as the first name in AI-driven customer experience, through compelling storytelling, content creation, and public presence.
  • • Design and implement AI-powered growth systems and workflows that amplify individual impact, replacing manual processes with autonomous agents for scaling marketing operations.
  • • Balance creative campaign development with analytical rigor, using dashboards and metrics to optimize CAC, LTV, retention, and pipeline velocity without sacrificing brand integrity.
  • • Operate as a builder who ships quickly, experiments constantly, kills underperforming initiatives, and iterates based on real-time data and customer feedback.
  • • Fluently communicate the value of AI-native products to enterprise buyers, translating complex technical capabilities into irresistible customer narratives.
  • • Collaborate directly with both founders to align growth strategy with product vision, company trajectory, and fundraising goals for Series A and beyond.
  • • Establish a culture of AI fluency within the growth team, leveraging premium AI tools (ChatGPT, Claude, Perplexity Pro, Cursor, Lovable) to automate research, copywriting, analysis, and campaign optimization.
  • • Share and document AI workflows through internal demo days and Slack threads, fostering a team-wide practice of learning from each other’s AI-enhanced productivity systems.
  • • Maintain high standards for quality and speed, moving at startup velocity while ensuring every campaign, message, and customer interaction reflects Siena’s innovative and human-centered ethos.
  • • Embody Siena’s values: curiosity, customer obsession, ownership, direct feedback, adaptability, and relentless problem-solving without waiting for permission.
  • • Treat AI as a natural extension of work — building personal agent ecosystems for research, writing, analysis, and automation before joining, and expanding them at Siena.

🎯 Requirements

  • • AI-native: You have built or significantly enhanced workflows using AI agents before joining, and you actively use AI to automate marketing, content, or growth tasks.
  • • A builder: You have shipped a function, brand, or company from zero to something tangible, operating autonomously without predefined briefs or structures.
  • • A storyteller: You write compelling narratives that make complex AI products feel inevitable and human, with proven experience in content, messaging, and brand positioning.
  • • Creative and analytical in equal measure: You balance campaign creativity with data-driven decision-making, fluent in both qualitative storytelling and quantitative pipeline metrics.
  • • Scrappy and experimental: You ship fast, test constantly, kill what doesn’t work, and thrive in ambiguity with a bias for action.
  • • Fluent in selling AI: You understand the unique go-to-market dynamics of AI products and have either sold them before or studied them deeply enough to articulate a clear strategy for Siena.

🏖️ Benefits

  • • Meaningful impact: Your work directly shapes the product and future of the company at a critical growth stage.
  • • Great salary plus equity or stock grants.
  • • Learning budget: Access to funds for courses, tools, conferences, or any resource that supports your growth.
  • • AI fluency: Premium AI tool subscriptions (ChatGPT, Claude, Perplexity Pro, Cursor, Lovable) and a quarterly budget for new AI tools.
  • • Globally distributed team working at the bleeding edge of AI and customer experience.
  • • The thrill of building something new: Join at a stage where your contributions define the company’s trajectory.

Skills & Technologies

Onsite

Ready to Apply?

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About Siena AI.

Siena AI is a customer experience (CX) platform designed for e-commerce brands. It combines human empathy with AI-driven automation to enhance customer support across various channels, including chat, email, SMS, and social media. The platform allows businesses to create personalized AI agents that reflect their brand's voice and tone, enabling seamless and empathetic interactions with customers. Siena AI integrates with existing e-commerce systems, providing real-time access to order information, product details, and customer data to resolve inquiries efficiently. It also offers features like reviews management, shopping assistance, and memory capabilities to personalize customer interactions. Siena AI aims to help brands scale their customer support operations while maintaining a high level of customer satisfaction.

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