Mammoth Brands · 12 hours ago
Senior Manager, Customer Supply Chain Manager - Walmart
New York, NY
Full-time
Hybrid
Mid, Senior Level
$118K/yr - $148K/yr
5+ years expMammoth Brands is a modern CPG company focused on creating better consumer products and fostering a positive impact in the community. They are seeking a Senior Manager, Customer Supply Chain Manager to lead supply chain operations for Walmart, ensuring effective forecasting, replenishment, and operational performance. This role involves collaboration with various teams to enhance product flow and optimize supply chain efficiency.
CosmeticsMen'sPersonal Care and Hygiene
Responsibilities
Lead 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
Serve 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
Act 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
Serve 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
Develop 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
Qualification
Required
5+ 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 teams—Demand Planning, Sales, Supply Planning, Operations, Finance—and with external partners
Self-starter who thrives in a fast-paced environment and can balance strategic thinking with hands-on execution
Benefits
Medical, dental, and vision coverage
401k match
Equity in Mammoth Brands
Flexible time off and working hours
Wellness and L&D stipends
4 weeks sabbatical after 5 years, 6 weeks after 10 years, and 8 weeks after 15 years
20 fully paid weeks off for parents who give birth, or 16 fully paid weeks off for all other paths to parenthood
Fun IRL and virtual events including happy hours, team building events, and parties on our rooftop
Free products from all of our brands
Company
Mammoth Brands
Mammoth Brands manages brands like Harry's, Flamingo, Lume, and Mando, offering personal care and hygiene products.
501-1000 employees
Funding
Current Stage
Late StageLeadership Team
Andy Mayfield
Co-Founder & Co-CEO
Jeffrey Raider
Co-Founder & Co-CEO
Recent News
2026-01-22
2026-01-16
Company data provided by crunchbase