Product Manager, Agent Platform (+ Equity) at Siena AI

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jack's network.
The next step is to speak to Jack.
Job Title
Product Manager, Agent Platform
Salary
Not Disclosed + Equity
Company Description
Siena AI is the category-defining "Agent of Record" for CX, building a multi-agent stack that automates customer journeys for leading consumer brands like Spanx, FIGS, and Brooklinen.
Job Description
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.
Location
London, UK
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.
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.
The ideal candidate
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.
Who are Jack & Jill?
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.
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.
How does this work?
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 it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.
Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

Work arrangement
Yes