Benefits:

401(k)

Employee discounts

Health insurance

Paid time off

Training & development

401(k) matching

Competitive salary

Marketplace Operations Manager – Amazon & eBay

Signature Performance Tire and Wheel Costa Mesa, CA Full-Time | On-Site Pay: $28–$34 per hour, depending on experience

About the Role

Signature Performance Tire and Wheel is looking for a driven, organized, and detail-oriented Marketplace Operations Manager to take ownership of our Amazon and eBay marketplace operations.

We specialize in aftermarket automotive products including wheels, tires, suspension, and accessories. We are looking for someone who understands that successful marketplace management goes far beyond simply processing orders.

This person will help manage the complete marketplace experience—from product listings and pricing to customer service, fitment verification, order processing, tracking, inventory accuracy, returns, and account health.

This is a hands-on position for someone who enjoys solving problems, improving processes, analyzing marketplace performance, and taking ownership of results.

Responsibilities

Manage daily operations within Amazon Seller Central and eBay Seller Hub

Process marketplace orders accurately and efficiently

Respond to customer messages, product questions, and order-related concerns

Verify vehicle fitment and product compatibility before orders are released

Review year, make, model, bolt pattern, wheel sizing, tire sizing, offsets, and other application information

Add, verify, and monitor tracking information

Follow shipments through delivery and proactively address delays or fulfillment issues

Handle cancellations, returns, exchanges, damaged shipments, and customer-service escalations

Open and manage Amazon and eBay support cases when necessary

Manage and optimize marketplace product listings

Improve listing titles, descriptions, specifications, images, item specifics, and marketplace data

Apply marketplace SEO best practices to improve product visibility

Monitor inventory availability and help maintain accurate stock levels across marketplaces

Identify inventory discrepancies and work with purchasing, vendors, and fulfillment warehouses to resolve them

Monitor competitor pricing and assist with marketplace pricing strategies

Monitor sales, conversion rates, customer feedback, returns, and marketplace performance

Identify underperforming products and opportunities to improve listings or pricing

Identify potential new product opportunities and coordinate with purchasing to expand our marketplace catalog

Assist with Amazon A+ Content, Amazon PPC, and eBay Promoted Listings when applicable

Work closely with sales, purchasing, warehouse, vendors, and fulfillment partners

Maintain organized records and follow up on outstanding orders and customer issues

Identify problems before they negatively affect customers or marketplace account health

Help develop and improve internal marketplace processes as the department grows

Marketplace Performance & Account Health

We want someone who understands that Amazon and eBay performance is measured and that maintaining strong marketplace metrics is critical.

You should be comfortable monitoring metrics including:

Account health

Sales and revenue

Conversion rates

Order defect rate

Late shipment rate

Cancellation rate

Valid tracking rate

On-time delivery

Customer response time

Returns

Negative feedback

Cases and disputes

Listing performance

Inventory availability

You should be able to recognize when a metric is moving in the wrong direction, investigate why, and help develop a solution.

What We’re Looking For

2+ years of hands-on e-commerce or marketplace experience preferred

Experience with Amazon Seller Central

Experience with eBay Seller Hub

Strong understanding of marketplace seller metrics and account health

Experience managing marketplace orders and customer-service issues

Experience creating or optimizing marketplace listings

Understanding of marketplace SEO and listing best practices

Analytical mindset with the ability to review sales and performance data

Strong written and verbal communication

Excellent attention to detail

Strong organizational and follow-up skills

Ability to manage multiple orders, customers, and priorities simultaneously

Comfortable working with multiple browser tabs, software platforms, and systems throughout the day

Working knowledge of Excel or spreadsheets

Ability to quickly learn new software and internal processes

Dependable and able to take ownership without constant supervision

Preferred Experience

Experience with any of the following is a major plus:

Aftermarket wheels

Tires

Suspension

Automotive accessories

Vehicle fitment

Bolt patterns

Wheel offsets

Wheel and tire sizing

Automotive parts catalogs

Amazon PPC

Amazon A+ Content

eBay Promoted Listings

Marketplace SEO

E-commerce inventory management

Competitive pricing analysis

Automotive experience is strongly preferred, but we are willing to teach vehicle fitment to the right candidate who already has strong Amazon and eBay marketplace experience.

The Person We’re Looking For

We want someone who takes ownership.

If a shipment is delayed, you follow it.

If a customer has a problem, you work toward a solution.

If a tracking number is missing, you find it.

If an order doesn't look right, you investigate it.

If a vehicle fitment looks questionable, you verify it before the product ships.

If inventory doesn't match what the marketplace is showing, you find out why.

If a listing isn't converting, you look for ways to improve it.

If an Amazon or eBay metric begins moving in the wrong direction, you investigate the cause before it becomes a larger problem.

We aren't looking for someone who simply completes tasks. We are looking for someone who takes responsibility for the marketplace operation and wants to continually make it better.

About Signature Performance

Signature Performance Tire and Wheel is a Costa Mesa-based automotive performance retailer specializing in wheels, tires, suspension, and accessories.

We serve customers throughout the country through our retail location, websites, and online marketplaces.

Our reputation has been built around product knowledge, vehicle fitment expertise, competitive pricing, and taking care of our customers.

We operate in a fast-moving environment where problems need to be solved quickly and good ideas are encouraged. The right person will have an opportunity to take on additional responsibility and grow alongside our marketplace business.

Job Type: Full-Time Work Location: On-Site – Costa Mesa, CA Pay: $28.00–$34.00 per hour, depending on experience