Siena AI is looking for an AI-native Product Manager to own their core agent platform. You will lead the development of systems that drive agent performance, measurement, and customer visibility. This role bridges deep technical work on evaluation frameworks with customer-facing demos and experimentation to define the future of autonomous customer experience.
Product Manager, Agent Platform at Siena AI
Siena AI is redefining customer experience as the first 'Agent of Record,' building a multi-agent stack that handles everything from sales to support for brands like Spanx and FIGS. We are looking for an AI-native Product Manager to own our core platform in London. This is a rare chance to move beyond narrow PM scopes and take full ownership of agent performance, evaluation systems, and customer visibility. You’ll work in a fast-paced, distributed team where high autonomy is the priority and every tool—from Claude to Cursor—is at your fingertips. If you’re a technical problem solver ready to build the future of AI automation, join us.
What's the next step?
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Location
London, United Kingdom
Compensation
Not Disclosed + Equity
Company
Siena AI
Role overview
Siena AI (using the domain siena.cx) is an autonomous, empathic AI customer service and customer experience platform designed for commerce brands. It provides AI agents that automate customer interactions across email, chat, SMS, social media, and other channels, handling use cases such as product information, order tracking, address changes, returns and exchanges, subscription and retention management, and social media conversations. The platform embeds into existing help desks like Zendesk, Gorgias, Kustomer, Gladly, and Dixa, consolidating the CX stack and enabling brands to resolve most customer inquiries end-to-end using generative AI while maintaining each brand’s unique voice through AI personas. Siena’s mission is to humanize the internet by turning customer interactions into meaningful relationships, combining human-like empathy with advanced LLM-powered automation to improve efficiency, increase loyalty, and optimize support operations for direct-to-consumer and other commerce-focused businesses.
What you will do
- Lead the end-to-end development of the agent platform, defining how multi-agent stacks interact, perform, and scale across customer journeys.
- Build and ship the evaluation, testing, and monitoring systems that ensure agent performance is measurably superior and transparent to customers.
- Run journey-level A/B tests and conduct live customer demos to iterate on the platform’s visibility, trust, and onboarding experience.
Who this is a fit for
- 3+ years of experience as a Product Manager specializing in CX, e-commerce, helpdesk, or AI-driven automation platforms.
- AI-native proficiency with modern development tools like Claude, Cursor, and v0 as a core part of your daily product workflow.
- Strong technical fluency to independently scope complex systems such as webhooks and OAuth flows while comfortably co-selling with sales teams.
Why this role is remarkable
- High-impact ownership of the core agent platform in a company creating an entirely new category of autonomous customer experience tools.
- Work with cutting-edge production AI daily in a small, high-leverage team that provides premium accounts for Claude, Cursor, and Perplexity Pro.
- Direct access to major consumer brands like Spanx and FIGS, shipping features that reach real customers and move product metrics immediately.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Siena AI wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.