Product Manager, AI Agent Platform & CX

Siena AI; Greater London; Remote; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Equity or stock grants

Learning budget

Job summary

Siena is seeking a Product Manager, Core Agent Platform, to own the platform that powers our multi-agent CX stack. You’ll shape the roadmap, measure and improve agent performance, and collaborate with engineering, deployment, and customers.

You’ll also build as well as specify, driving outcomes in a fast-paced, async-first environment. You’ll work on structured experiments, dashboards, and customer-facing visibility while prototyping new ideas with agents.

Qualifications

• 3+ years as a PM in CX, ecommerce, helpdesk or AI automation.
• You can explain how webhooks, OAuth and integrations work and have made product decisions around them.
• AI-native builder who uses Claude, Cursor or v0 daily and has prototyped product ideas with them.

Responsibilities

• Own the core agent platform end to end, including the roadmap and day-to-day product decisions.
• Build and ship evaluation, testing and monitoring systems that improve agent performance over time.
• Design and run structured experiments and A/B tests across agent workflows.
• Provide customers visibility into how their agents are performing.
• Prototype ideas with coding agents and ship them where possible.

Skills

PM experience

Technical fluency

AI tooling

Customer-facing

Tools

Claude

Cursor

v0

Job description

Siena is seeking a Product Manager, Core Agent Platform, to own the platform that powers our multi-agent CX stack. You’ll shape the roadmap, measure and improve agent performance, and collaborate with engineering, deployment, and customers.

You’ll also build as well as specify, driving outcomes in a fast-paced, async-first environment. You’ll work on structured experiments, dashboards, and customer-facing visibility while prototyping new ideas with agents.