Backend Development for E-commerce
High-performance product catalogs, checkout flows, and inventory management. I build e-commerce backends that handle Black Friday traffic without breaking a sweat.
Why E-commerce choose to work with me
- Product catalog APIs with advanced search and filtering
- Cart and checkout optimization for conversion
- Inventory management with real-time stock tracking
- Payment gateway integrations (Stripe, PayPal, etc.)
- Performance optimization for traffic spikes
E-commerce Backend Challenges
E-commerce backends must handle complex product relationships, real-time inventory, concurrent purchases, and massive traffic spikes during sales events. The backend directly impacts conversion rates and revenue.
- Product catalog: Variants, attributes, categories, pricing rules, and search need careful data modeling.
- Inventory: Real-time stock tracking across warehouses with atomic decrement on purchase.
- Checkout: Cart management, discount codes, tax calculation, and payment processing in a reliable flow.
- Performance: Product pages must load fast. Slow APIs kill conversion rates.
Key Services
Product Catalog API
Build fast, searchable product APIs with variants, attributes, categories, and advanced filtering.
Checkout & Payments
Reliable checkout flows with cart management, discount codes, tax calculation, and multi-gateway payment processing.
Inventory Management
Real-time inventory tracking across locations with atomic stock operations and low-stock alerts.
Performance Optimization
Cache product data with Redis, optimize database queries, and prepare your backend for traffic spikes.
Recommended Tech Stack
Technologies I typically use for E-commerce
FastAPI for high-performance product APIs, PostgreSQL for transactional data, Redis for product caching and session management, Elasticsearch for product search, Celery for order processing and email notifications, Stripe for payments.
Frequently Asked Questions
Can you build a headless e-commerce backend?
Yes. I specialize in API-first headless commerce backends that any frontend (React, Next.js, mobile app) can consume. This gives you maximum flexibility in how you present products to customers.
How do you handle traffic spikes during sales?
Aggressive Redis caching for product data, database query optimization, connection pooling, and optional auto-scaling. I load test before major events to identify bottlenecks. Most e-commerce performance issues are database-related and solvable with proper indexing and caching.
Need expert backend development?
I build scalable Python APIs and backend systems. Let's discuss your project.
Get in Touch