Senior PM, B2B Marketplace & AI/API Platform

Fanatics; Los Angeles (CA); On-site; USD 150,000 - 185,000; Full time

Job summary

Fanatics Collectibles is seeking a Senior Product Manager to build the B2B marketplace tools, APIs, and partner integrations that empower professional sellers and high‑volume buyers at scale. You’ll lead AI‑driven, API‑rich products across the Fanatics Collectibles ecosystem.

This role focuses on defining metrics, shipping with engineers, and partnering with multiple teams to drive growth and scale in a fast‑moving marketplace environment.

Qualifications

• 5+ years of product management experience, including marketplace or commerce products.
• Experience with platform or API products or partner integrations; comfortable with technical tradeoffs and working closely with engineers.
• Track record of taking a new, ambiguous area from problem definition to shipped product.
• Data fluent: sets metrics, reads the data, makes the call.
• Comfortable in a fast‑moving, cross‑functional org
• AI‑first: builds with AI every day (prototyping, analysis, specs) and looks for where AI can reshape the product, not just speed up the work.

Responsibilities

• Pro Seller: tools for high-volume sellers to list, price, manage and fulfill inventory at scale, with corresponding analytics to help them optimize their business.
• Pro Buyer: bulk buying and API access for volume buyers, including automated buying against predefined criteria.
• Agentic commerce: make Fanatics Collect the marketplace AI agents are built for, from agent‑ready APIs and integrations with AI assistants to on‑site agentic buying and selling experiences.
• Partner integrations: integrations across the Fanatics ecosystem to offer sellers more distribution channels and help them get their inventory in front of millions of sports fans.
• Operating at scale: build automated solutions for onboarding new hobby shops, enforcing quality controls, etc.
• Strategy and execution: set success metrics, priorities, and partner with design, engineering, Commerce, Finance, Ops and Sales to ship.

Skills

Product management

API/Platform products

Data analytics

AI-first mindset

Cross-functional collaboration

Job description

Fanatics Collectibles is seeking a Senior Product Manager to build the B2B marketplace tools, APIs, and partner integrations that empower professional sellers and high‑volume buyers at scale. You’ll lead AI‑driven, API‑rich products across the Fanatics Collectibles ecosystem.

This role focuses on defining metrics, shipping with engineers, and partnering with multiple teams to drive growth and scale in a fast‑moving marketplace environment.