Senior Manager, Customer Supply Chain Manager - Walmart

Senior Manager, Customer Supply Chain Manager - WalmartFlamingo is an award-winning body, hair, and care brand delivering high-performance, thoughtfully designed products at an accessible price. Since launching in 2018, we've become the #3 player in women's shave in the U.S. and expanded our assortment to offer products for every routine: razors, wax steps for face and body, shave gel, and body lotion. Our products and campaigns have been covered by Vogue, Vanity Fair, Elle, and InStyle, and we've won major beauty accolades from Allure and Essence. With a mission to empower women, Flamingo is committed to partnering with nonprofit partners working to help women and girls build healthy relationships with their bodies and has helped connect over 200K people to quality mental health and wellbeing resources. Flamingo is part of Mammoth Brands, the modern CPG company behind category-leading brands Harry's, Flamingo, Lume, Mando, and Coterie. Driven by a mission to "Create Things People Like More," the company is creating a new modeland homefor brands, founders, and talent looking to solve unmet needs, improve peoples' lives and ultimately change the status quo. Even as we grow, we take extra care to maintain the small, scrappy, entrepreneurial culture that helped to get us where we are today: a company that people like more, that better serves its customers, employees, and community. Mammoth Brands is committed to making a positive impact and donated over $20 million through our network of nonprofit partners to date. About the RoleWe're seeking an analytical, collaborative, and execution-obsessed Customer Supply Chain Manager to lead end-to-end supply chain operations for Walmart. This is a high-impact, customer-facing role responsible for CPFR, operational performance management, chargeback mitigation, and partnership with Walmart's replenishment and supply chain teams. You will work cross-functionally with Commercial leaders, Demand Planning, Supply Planning, Operations, Finance, and third-party partners to ensure products flow seamlessly through Walmart's supply chain and onto shelves and digital carts. This role requires strong problem-solving, prioritization, and the ability to convert data into actionable insights and proactive recommendations. We're looking for a strategic thinker who can also roll up their sleeves, move quickly, and manage both day-to-day operations and long-term improvements. What You'll AccomplishEnd-to-End Forecasting, Replenishment & CPFRLead Walmart forecasting & replenishment across all Mammoth Brands (Harry's, Flamingo, Lume, Mando). Manage weekly CPFR processes, ensuring accurate internal inputs and alignment with Walmart's Supply Plan. Conduct weekly replenishment analyses to monitor store inventory health, supply flow, and demand shifts. Own Event Management forecasting (promotions, resets, modular changes), new item launches, and end-of-life transitions. Identify risks and opportunities related to in-stocks, waste, overstocks, and seasonal dynamics. Retail Operations LeadershipServe as the go-to expert on Walmart operational processes including fulfillment, warehousing, transportation, in-store operations, modular execution, allowances, and chargebacks. Own OTIF and operational KPI tracking for Walmart; analyze root causes and lead corrective actions. Manage chargeback mitigation and recovery through cross-functional collaboration and retailer insights. Coordinate with Store Operations partners to identify and drive improvements in on-shelf execution. Customer Relationship ManagementAct as the primary point of contact for Walmart Replenishment Managers and Walmart Supply Chain stakeholders. Translate large, complex datasets and Walmart insights into clear recommendations that drive shared growth. Build and maintain strong relationships with internal and external partners, including 3PLs, HQ brokers, and Walmart's supply chain & replenishment teams. Strategic Planning & Continuous ImprovementServe as a key input in our commercial forecast with Demand Planning and Commercial teams. Identify gaps in current operational processes and build strategic roadmaps for improvement. Support and/or lead cross-functional projects that drive operational efficiency and demand/supply alignment. Share & apply best practices across channels and retailers when appropriate. Tools, Reporting & AnalyticsDevelop and maintain reporting, dashboards, and operational scorecards tied to KPI performance (e.g., OTIF, in-stocks, weeks of supply, supply plan accuracy). Leverage external Walmart systems as well as internal ERP tools, including Retail Link, Luminate, DSS, Nova, Item 360, Aspen, SupplierOne, Scintilla, SPS Commerce, SAP. Use data to generate insights on inventory flow, supply disruptions, and customer-facing performance. What Success Looks LikeWalmart in-stock and OTIF performance consistently at or above target. Clear, proactive forecasting and replenishment recommendations that improve Supply Plan accuracy. Strong, trusted working relationships with Walmart Replenishment Managers and internal cross-functional teams. Reduction in chargebacks through root-cause identification and improved execution. Streamlined reporting and planning tools that elevate visibility and decision-making. Demonstrated ability to manage both daily operations and long-term strategic projects. This Should Describe You5+ years of experience in retail operations, customer supply chain, supply chain management, or retail sales. Strong understanding of Walmart tools & resources (Luminate, Retail Link, Nova, Item 360, Aspen, SupplierOne, Scintilla). Deep knowledge of forecasting & replenishment, demand/supply planning, store operations, inventory management, and logistics. Skilled at managing large datasets and using Excel, analytics tools, and/or AI tools to uncover insights. Highly organized project manager with the ability to prioritize and lead through ambiguity. Strong communicator capable of translating complex analytics into simple operational actions. Comfortable collaborating across teamsDemand Planning, Sales, Supply Planning, Operations, Financeand with external partners. Self-starter who thrives in a fast-paced environment and can balance strategic thinking with hands-on execution. Here's Who You'll Work WithReporting Structure You will report directly to our Sr Director, Customer Supply Chain within the broader Mammoth Brands Supply Chain organization. You will work in close partnership with the Walmart Commercial (Sales) team, with a dotted line to our Head of Walmart, supporting joint business planning, forecasting inputs, and operational execution. Cross-Functional PartnersYou will collaborate daily with teams across Mammoth Brands, including: Demand Planningalignment on Supply Plan inputs, event management, forecast accuracy, and IBP. Supply Planning & Operationsensuring capacity, production, transportation, and fulfillment readiness for Walmart. Commercial / Salesaligning on business priorities, revenue drivers, and item-level strategies for Harry's, Flamingo, Lume, and Mando. Financesupporting inventory health, demand assumptions, and chargeback reconciliation. 3PLs & Transportation Teamssupporting flow-of-goods, shipment accuracy, and root-cause resolution for operational issues. External PartnersThis is an external-facing role. You will work directly with: Walmart Replenishment Managersserving as their primary operational contact and strategic replenishment partner. Walmart Supply Chain & Merchant Support Teamscollaborating on inventory flow, modular changes, event readiness, and operational troubleshooting. 3rd Party Store Operations Partnersensuring seamless communication, field execution, and compliance with Walmart operational expectations. Logistics & Retail Technology Partnerssupporting inventory visibility, data pipelines, and supply chain performance tools. Benefits and perks Medical, dental, and vision coverage