Counter Sales

Do you love working with talented people? So do we!

Our team is growing and we’re looking for best-in-class talent. We value experienced, career-minded employees who focus on teamwork, professionalism and an unparalleled commitment to customer service. We offer full-time employees a competitive benefits package that includes health, dental and vision insurance, along with life and AD&D insurance, 401k plans, vacation time and more.

Browse positions available at mSupply and throughout our HVAC, plumbing and appliance parts business units nationwide. Use the filters to narrow by department, business unit or location.

Location: Waltham, MA

Remote Status: On-Site

Job :3932-API

# of Openings:1

About mSupply TM
mSupply is a North American distributor of OEM repair parts and equipment serving the appliance, HVAC and plumbing industries. Headquartered in St. Louis, the company combines industry expertise with a broad product selection and a national distribution network.

With 2,000 employees across the United States and Canada, mSupply delivers speed and reliability at scale, with a vast product inventory and same-day shipping. Its family of brands is focused on making sure customers always get the Right Products. Right Now.™ For more information, visit

About API of NH/Delta T
API of NH/Delta T has served independent HVAC contractors across New England since 1969. Founded as a family business and now backed by the strength of a nationwide enterprise, the company focuses on customer service, product quality and contractor support, with expertise in hydronics and sheet metal fabrication. API of NH/Delta T distributes brands including Rheem and LG. For more information, visit

The Counter Sales role delivers exceptional customer service through in-person, phone, and digital channels while supporting branch operations through order fulfillment, merchandising, and will-call assistance. This position also handles product inquiries, returns, and inventory management using company systems and tools.

Provides exceptional customer service through timely, professional communication and resolution of inquiries.

Manages pricing, product availability, and order status via phone, email, fax, and in-person interactions.

Processes orders, coordinates deliveries, and ensures accurate and timely fulfillment.

Maintains strong, solutions-oriented relationships with customers, vendors, and internal teams.

Completes all required training and applies knowledge effectively across branch operations.

Performs general warehouse duties while maintaining a clean, safe, and organized environment.

Uses appropriate PPE and conducts routine safety checks on equipment.

Communicates task status and updates with management throughout the workday.

Monitors and responds promptly to customer queues to ensure efficient service.

Sorts, stocks, and labels products accurately per established procedures.

Inspects returned and damaged goods for accuracy and condition.

Applies basic product knowledge to assist customers and support sales.

Sets up and maintains merchandise displays in line with company standards.

Adheres to inventory procedures for accurate tracking and reporting.

Verifies shipments and promptly reports discrepancies or errors.

Maintains proficiency in company systems for tasks such as data entry, messaging, documentation, and queue updates.

Performs additional duties and responsibilities as assigned to support evolving organizational needs.

High school diploma or GED equivalent.

Minimum 3 years of customer service experience.

Proficient in MS Office (Word, Excel, PowerPoint, Outlook).

Strong aptitude for numerical analysis and mathematical operations.

Skilled in office technology, including computers, scanners, phones, and virtual meeting tools.

This position may require over 40 hours per week and includes regular physical activity such as:

Lifting 25–50 lbs for up to 5 hours per day.

Operating forklifts and material handling equipment for up to 6 hours daily.

Frequent bending, squatting, kneeling, reaching, and twisting.

Prolonged use of hands, arms, and feet.

Periods of…