Senior Manager, Customer Supply Chain Manager – Walmart

About Harry’s Harry’s is a men’s grooming brand that offers high quality shave, body, hair, and skin care products at an exceptional value. Launched in 2013, Harry’s redefined the shaving experience and helped pioneer the earliest era of direct to consumer in the process. Since then, the brand has become the #2 shave brand globally and expanded to offer products for every step in its customer’s routine.

Harry’s is also on a mission to ensure guys have access to quality mental health care. To date, the brand has helped connect over 2 million men to quality mental health resources.

Harry’s 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 model—and home—for 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 Team The Customer Supply Chain (CSC) team sits within the broader Supply Chain organization and is directly embedded with our Retail partners. As part of Mammoth Brands, we support the end-to-end execution of Harry’s, Flamingo, Lume, and Mando across key retailers.

As the Sr Manager for Walmart, you will own retail operations, forecasting, replenishment, and in-store execution from shelf to supply node. You will be accountable for ensuring best-in-class availability, in-stocks, OTIF performance, and flawless execution for Walmart’s omni-channel business. While this role is primarily Walmart-focused, there may be periodic support across other retailers depending on business needs.

About The Role We’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 Accomplish
End-to-End Forecasting, Replenishment & CPFR

• 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.

Retail Operations Leadership

• 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.

Customer Relationship Management

• Act as the primary point of contact for Walmart Replenishment Managers and Walmart Supply Chain stakeholders.
• Translate large,…