Senior Digital Assortment Manager United Kingdom - Remote

Rithum™ is the world’s most trusted commerce network, accelerating how brands, suppliers, and retailers work together to deliver seamless e‑commerce experiences. We provide an unmatched platform for brands and retailers, enabling them to accelerate growth, optimise operations across channels, scale product offerings and enhance margins.

Today, more than 40,000 companies trust Rithum to grow their business across hundreds of channels, representing over $50 billion in annual GMV. Using our commerce, marketing, and delivery solutions, our customers create optimised consumer shopping journeys from beginning to end.

Rithum is an AI‑first organization, meaning AI is foundational to how we work, collaborate, and grow. Across all roles, employees are expected to leverage AI to move faster, work smarter, and create repeatable patterns that benefit others. AI proficiency is a core capability, reinforced through clear standards, tooling, and ongoing support. At Rithum, you contribute to advancing our AI‑first ways of working.

As a Senior Digital Assortment Manager – EMEA, you drive growth by enabling assortment expansion strategies for Rithum’s most strategic clients. You partner with client merchants and ecommerce teams to identify 3P assortment opportunities and deliver actionable plans that drive profitable GMV. In EMEA, this role also expands and strengthens the Rithum network by identifying, engaging, and onboarding new brands and suppliers to meet retailer demand and support regional growth.

• Develop and execute assortment expansion strategies to drive revenue growth for Rithum and its clients
• Act as a trusted advisor to clients, owning engagement objectives and delivering measurable outcomes
• Analyze performance, trends, and category opportunities to inform assortment recommendations
• Translate data into clear, actionable plans that optimize assortment and support client demand
• Partner with Sales, Client Partnerships, and Marketing on merchandising strategies and client presentations

• Build and scale a network of brands and suppliers across EMEA to support retailer demand and growth targets
• Identify and onboard new partners through outbound outreach, retailer demand signals, campaigns, and partner ecosystems
• Use data and AI-enabled tools to prioritize outreach and target high‑potential partners
• Develop and manage outreach cadences to generate a consistent pipeline of new network participants
• Establish and optimize scalable processes for partner qualification, onboarding, and activation
• Partner cross‑functionally to align on target accounts, campaigns, and growth priorities
• Build and manage relationships with integrators and external partners to expand network reach
• Track progress against network growth goals, including onboarding, activation, and GMV contribution

• Leverage analytics and AI-enabled tools to accelerate insights, identify patterns, and improve decision‑making
• Utilize internal and external data sources to generate insights that inform both assortment and network strategies
• Partner with Product and Business Intelligence teams as an SME to inform analytics and AI‑driven tool development
• Identify opportunities to automate workflows and scale impact through AI and repeatable processes
• Collaborate across teams to share insights, improve processes, and drive consistent execution

• 3+ years of client‑facing experience in a professional environment building and managing commercial relationships with brands and suppliers
• 2–3 years of e‑commerce experience in merchandising, wholesale, or retail buying/planning where you held the commercial relationship and negotiated terms
• Ability to generate pipeline through outreach and manage partner engagement processes
• Experience in marketplace, supplier acquisition, or network growth environments
• Experience using AI to analyze data, streamline workflows, or scale impact
• Experience using AI tools (ChatGPT, Copilot, Claude, etc.) to accelerate and elevate your outcomes; including but not limited…