eBay uses an extensive and highly scalable technology stack that relies on a combination of proven backend technologies and modern frontend frameworks. The platform is primarily Java-based, but has evolved significantly over the years toward Node.js and other technologies.
Here are the key components, programming languages and tools:
1. Programming languages (Back- & Frontend)
Java: The core of the eBay platform is based on a Java-based technology platform (JVM).
JavaScript / TypeScript / Node.js: eBay has moved its web applications from Java to Node.js to enable faster development cycles. TypeScript is used heavily for modern frontends (such as Next.js).
Scala: Used for certain backend services.
Python: Often used for data science, AI and through the "eBay Open Source Python SDK".
2. Frameworks and web technologies
React & Redux: For building user interfaces.
Next.js: Used in the modern frontend stack.
Marko: A fast UI rendering engine developed by eBay.
3. Databases and data storage
MySQL: For relational database requirements.
MongoDB: For unstructured or flexible data.
Redis: Used as a caching technology to boost performance under high traffic.
4. Infrastructure, cloud and tools
Containerization: Docker and Kubernetes are used extensively to manage microservices and scaling.
Cloud platforms: Hybrid cloud approach using OpenStack, Azure and Google Cloud.
CI/CD: Jenkins is used for automated software development and deployment.
Big Data: Technologies like Apache Hadoop/Spark are used to analyze the massive amounts of data.
5. Tools for eBay sellers (ecosystem)
eBay Seller Hub: The central native tool from eBay for managing sales.
Terapeak: A market analysis tool integrated into the Seller Hub for historical sales data.
API tools: RESTful and SOAP-based APIs that enable third parties to integrate sales and inventory management tools (such as Inkfrog, Linnworks, etc.).
Search algorithm: “Beste Übereinstimmung” (Best Match), which is based on AI and user data.
none, potential for growth present.
EU
Everyone, between 14 and 70 years old.
Selling products.
Commercial sellers (as of 2026):
Sales commission: Variable by category (usually 6.5% to 12% of the total sale price). The commission often decreases above a certain item price (e.g., to 2% for the portion over €500 or €990).
Fixed fee per order: €0.45 for orders over €10.
Listing fees: Apply when the quota (depending on the shop package) is exhausted.
eBay Shop packages: Basic (approx. €39.95/month), Top (approx. €79.95/month).
eBay.de
Important notes:
Payment processing: Fees for payment processing are included in the sales commission.
International sales: Additional fees (international selling) may apply.
Service status: With an "underperforming" seller status, the sales commission may increase.
eBay.de
Note: This is a general overview. Exact fees depend on the chosen category, the shop package and the seller status (as of Feb 2026).
10- 20 hours.
Successful eBay shop with top ratings & high potential for sale
I am offering my established eBay shop for sale with a heavy heart. The business has an excellent foundation and enormous growth potential that I unfortunately can no longer fully exploit due to time constraints.
The key facts at a glance:
Reputation: Over 3,546 positive feedbacks (top-rated profile).
Customer base: Over 822 loyal followers who are regularly informed about new items.
Status: Ready to start immediately – the business has been established for years and enjoys high trust among buyers and in the eBay rankings.
Reason for sale:
I currently run the business alone alongside two other occupations. As demand continues to grow, the workload has become too much for one person with multiple jobs. Last year I had to consciously reduce my online presence to maintain work-life balance. A new owner with more time focus can scale immediately here and massively increase revenue.
June 2021
Marketplace
<p>I offer you the opportunity to acquire an already profitable e-commerce shop. This business specializes in the production and distribution of custo...