How Radixweb Engineered the Growth of One of the Best Dropshipping Platforms in the USA

A Quick Summary: Go through this technical case study in SaaS eCommerce growth. Discover how Radixweb supported TopDawg’s rise as a leading U.S. dropshipping platform through AWS DevOps, scalable React front-end, Lambda functions, and custom integrations.

For ambitious SaaS platforms, scaling in today’s eCommerce-centric world requires far more than just a good idea. Success depends on building a resilient infrastructure, designing intuitive UI, and ensuring expert execution at every stage of the product development lifecycle.

This was exactly the challenge faced by TopDawg, a fast-growing B2B dropshipping platform based in the U.S. Hence, they were looking for a long-term development team to transform their bold vision into a robust, scalable, and integrated marketplace engine. That's when they turned to Radixweb.

In this blog, we share how Radixweb’s development and DevOps expertise powered TopDawg’s rise to become one of the best dropshipping companies in the USA. Read till the end to discover the key strategies and solutions that led to their growth story.

Dropshipping at Scale: What TopDawg Needed to Succeed

TopDawg connects over 20,000 U.S.-based retailers with more than 3,000 verified suppliers. Their portfolio includes over 500,000 products, all warehoused and shipped domestically.

To efficiently support their day-to-day workflows and nationwide operations, the company needed a highly scalable and fully optimized backend architecture. So, the goal of our engineering team was to lead the full-stack development of their SaaS platform that’s capable of handling:

• Real-time inventory syncing across millions of SKUs
• Integrations with Shopify, eBay, Walmart, and (soon) Amazon
• Custom pricing logic and membership tier controls
• Bulk product uploads, search filters, and product variants
• Ultra-responsive UI to support fast browsing and checkout flows

How Radix Engineered the Core Infrastructure

Our development approach was focused on making it easy to scale, fast in performance, and flexible enough to update or add new features anytime.

AWS DevOps and Cloud Architecture

We architected a secure and scalable AWS environment using EC2 for application hosting, RDS for relational data storage, and CloudFront for content delivery. With horizontal scaling in mind, we designed stateless services behind load balancers to ensure platform uptime even during peak traffic.

Amazon S3 for Product Media Management

With over half a million products and growing, the client required a scalable, cost-efficient media solution. We implemented Amazon S3 for managing all product images and media assets. This ensured fast loading times and enabled content caching across geographies via CloudFront.

AWS Lambda for Complex Processing

Many platform features rely on scheduled and event-driven executions such as syncing inventory feeds, updating product variants, and generating real-time shipping quotes. We used AWS Lambda functions extensively to manage these backend workflows without bloating the application or increasing infrastructure costs.

API Gateway and Microservices

To support integrations with external platforms like Shopify and eBay, we implemented a microservices architecture with RESTful APIs, authenticated through API Gateway. This provided retailers a clean, performant interface for managing their TopDawg-connected stores in real time.

Retailer-Centric Front-End Architecture

A modern eCommerce SaaS application needs to feel easy to navigate, especially with bulk catalog browsing and real-time product syncs. We built the front end entirely in React to create a highly dynamic, SPA (Single Page Application) experience. From the product catalog and import list to advanced dashboards, our React implementation ensures fast rendering, lazy loading, and component-level caching.

Redux and Context APIs

To manage complex user states and roles (admin, retailer, supplier), we utilized Redux for global state management and Context APIs for local data control. This allows users to navigate and manage large data sets without lag or reloading delays.

Integrated Search and Filtering

We implemented advanced search capabilities with debounced input handling, fuzzy match algorithms, and category tree filters to help users instantly find products across hundreds of categories.

DevOps, QA, and Continuous Delivery

TopDawg’s pace of growth required a highly disciplined CI/CD pipeline. Here’s how we ensured stability while shipping fast:

• CodePipeline + CodeBuild

We automated build and deployment processes using AWS CodePipeline and CodeBuild to maintain deployment velocity without sacrificing quality.

• QA Automation and Manual Testing

Our team deployed test suites for regression testing and conducted regular manual QA audits across critical workflows like order placement, shipping quotes, and membership billing.

• Security and Compliance

With retailers and suppliers sharing sensitive business data, we implemented IAM roles, SSL encryption, and VPC-based isolation to ensure data integrity and compliance.

The Results: Scalable Infrastructure Supports Continuous Growth

We worked on the foundation of the SaaS eCommerce platform that could meet the company’s current operational demands and long-term growth goals. The results of this strategic engineering effort are reflected in measurable improvements across multiple key areas like:

• Scaling to 20,000+ active retailers without compromising speed
• Expanding their product catalog to over 500,000 SKUs with stable performance
• Integrating with Shopify, eBay, Walmart, and launching new marketplaces faster
• Launching real-time shipping calculators and tier-based membership models

As a direct result of these benefits, they’ve now emerged as the best dropshipping company in the USA.

Why This Partnership Worked

Aligning ourselves with our client’s vision is our strategic priority. This approach was key to our successful, long-term partnership with TopDawg – a testament to what’s possible when technical excellence meets business alignment.

From AWS DevOps to front-end engineering, our team has been an integral part of TopDawg’s success. Time and again, we’ve gone the extra mile and actively worked with their leadership team to contribute strategic input across product roadmaps and marketplace integrations.

So, if you’re also planning to build the next big thing in online retail or marketplace tech, we can help. Whether you need a React-powered front end, robust AWS DevOps, or custom APIs that scale, we’ve the technical expertise and industry knowledge to deliver relevant, reliable solutions.

Reach out to us to explore how we can turn your idea into a high-performing product.