Marketplace Onboarding Manager

Real people. Real service.

, we value every individual team member and cultivate a community where people come first. Led by our core values of Generosity, Respect, Innovation, Teamwork, and GRIT, we're dedicated to maintaining a supportive work environment that celebrates diversity and empowers everyone to reach their full potential. As an industry-leading e-commerce company specializing in HVAC, plumbing, heating, and electrical supplies since 2004, we strive to foster growth while providing the best possible experience for our customers.

We are looking for a Marketplace Onboarding Manager (or a Marketplace Operations Manager as we like to call it!) to join our Product Team. This individual will report into our Senior Manager, Category Management and will be responsible for the day-to-day operational health of Supply House’s third-party marketplace channel. This role ensures that marketplace performance is continuously monitored, supplier onboarding is executed efficiently, and catalog and listing quality standards are upheld.

If you are interested in finding and onboarding new marketplace suppliers and building a pipeline of qualified partners, we want to hear from you!

This remote position is open to individuals who live in, or are open to relocating to, the following states:

Arizona, Delaware, Florida, Georgia, Kentucky, Nevada, New Jersey, New York, North Carolina, Ohio, Rhode Island, South Carolina, Tennessee, Texas, Virginia, and Washington.

This position requires travel to our headquarters in Melville, NY 3 times per year for internal meetings and team building activities. We reimburse reasonable and necessary travel expenses, and you're also welcome to work on-site anytime beyond these visits - our doors are always open.

Role Type:

Full-Time, Exempt

Location:

Remote

Monday through Friday, 8:00 a.m. to 5:00 p.m. with time zone flexibility

Base Salary:

The expected starting salary for the position is $92,940 to $116,175 within a full position range of $92,940 to $139,410 annually. This range reflects the long-term earning potential for the role. Our starting pay practice is the minimum to middle portion of the range, depending on experience, qualifications, and internal equity, consistent with applicable law and it is rare for a new hire to start above the midpoint.

• Proactively research and identify new marketplace supplier candidates across target categories, using competitive analysis, industry resources, and internal category gaps as inputs
• Conduct initial outreach to prospective suppliers, articulate Supply House’s marketplace value proposition, and manage the early-stage relationship through qualification
• Coordinate with Category Management to prioritize and schedule new supplier conversations, ensuring alignment with category strategy before advancing candidates
• Own the end-to-end onboarding process for approved suppliers, including agreement coordination, contract administration, data requirements communication, and timeline management
• Lead technical feed setup and validation for new suppliers - mapping product data, verifying feed accuracy, and resolving data quality issues prior to go-live
• Train new suppliers on Supply House’s systems, data standards, and operational requirements, ensuring they are set up for long-term success on the platform
• Serve as the primary point of contact for new suppliers through the onboarding period, troubleshooting issues and maintaining momentum to hit go-live milestones
• Document onboarding processes and maintain SOPs to ensure consistent, repeatable execution as the supplier base grows
• Develop and maintain claims, warranty, and returns processes for marketplace suppliers, ensuring clear guidelines and consistent execution across the supplier base
• Monitor post-launch supplier performance and flag issues with service levels, data quality, or accounting discrepancies for resolution
• Review weekly feeds for new item suggestions and coordinate with Category Management on additions
• Research competitor listings to identify opportunities for improvement in content, imagery, and positioning
• Conduct image audits and data cleanup including attribute and filter updates on new brand
• Own SOP creation and ongoing maintenance for marketplace operational workflows
• Test and document new marketplace features and platform capabilities within the supplier dashboards
• Execute ad hoc operational projects including data cleanup, content audits, and cross-system reconciliation
• Coordinate…