We’re looking for an experienced Senior Product Manager to help shape and grow a digital marketplace initiative in a fast-moving retail environment. This onsite role in Katy, TX offers the opportunity to lead product strategy, partner across business and technology teams, and support the full lifecycle of marketplace capabilities from discovery through launch and optimization.

Responsibilities

• Own the product roadmap for marketplace capabilities and align priorities with business goals and customer needs
• Translate business objectives into clear product requirements, including epics, user stories, acceptance criteria, and prioritized backlogs
• Partner with engineering, architecture, UX, operations, and business stakeholders to define and deliver marketplace features
• Support key marketplace workflows such as seller onboarding, catalog setup, product taxonomy, offer management, pricing, inventory, ordering, fulfillment, and returns
• Collaborate on integrations between the marketplace and ecommerce systems such as storefront, PIM, OMS, ERP, payment, and fulfillment platforms
• Guide backlog refinement, sprint planning, demos, UAT, release readiness, and launch activities
• Use product and operational data to track performance, identify improvements, and support ongoing optimization
• Identify dependencies, risks, and trade-offs while communicating product decisions clearly across teams
• Help transition marketplace capabilities from implementation into steady-state growth and enhancement

Skills

• 6–7 years of experience in product management, product ownership, business analysis, or digital product delivery
• Strong background in ecommerce, marketplace, retail, or digital commerce product work
• Hands-on experience creating roadmaps, requirements, user stories, acceptance criteria, and backlogs
• Solid understanding of marketplace models and seller ecosystems
• Experience with catalog, seller, offer, inventory, order, and fulfillment workflows
• Ability to work with APIs and integration-heavy digital commerce environments
• Experience in Agile/Scrum delivery settings
• Strong stakeholder management and collaboration skills across business and technical teams
• Analytical, customer-focused mindset with strong problem-solving abilities

Preferred Skills

• Experience with Mirakl Marketplace Platform or similar marketplace solutions
• Exposure to seller onboarding and catalog management within a marketplace environment
• Familiarity with marketplace integrations using REST APIs, webhooks, or GraphQL
• Experience integrating ecommerce solutions with platforms such as SAP Commerce, Salesforce Commerce, Adobe Commerce/Magento, or Shopify
• Background launching a marketplace from concept or discovery through MVP, go-live, and post-launch optimization
• B2B and/or B2C marketplace experience
• Experience working on seller operationalization and marketplace growth initiatives

Horizontal is committed to building an inclusive workplace where people from all backgrounds feel respected, supported, and able to thrive. We value diverse perspectives and encourage candidates of all identities, experiences, and abilities to apply.