You will get a backend architecture review for your ecommerce platform
Project details
You will get a practical backend architecture review for your ecommerce platform, SaaS product, marketplace, or backend-heavy web application.
I will review your backend/API structure, database design, ecommerce flows, scalability risks, performance bottlenecks, and operational readiness. The goal is to help you identify the most important technical risks and receive a clear, prioritized improvement plan before you spend more time or budget on implementation.
I have 18+ years of experience building and operating large-scale ecommerce backend systems, including product platforms, high-traffic APIs, database migration, MySQL sharding, MongoDB migration, Kafka/Spark pipelines, and microservice modernization.
Depending on the package, you will receive key findings, prioritized recommendations, architecture improvement ideas, and a practical modernization roadmap with implementation priorities.
I will review your backend/API structure, database design, ecommerce flows, scalability risks, performance bottlenecks, and operational readiness. The goal is to help you identify the most important technical risks and receive a clear, prioritized improvement plan before you spend more time or budget on implementation.
I have 18+ years of experience building and operating large-scale ecommerce backend systems, including product platforms, high-traffic APIs, database migration, MySQL sharding, MongoDB migration, Kafka/Spark pipelines, and microservice modernization.
Depending on the package, you will receive key findings, prioritized recommendations, architecture improvement ideas, and a practical modernization roadmap with implementation priorities.
Programming Languages
Java, TypeScript, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$300
|
Advanced
$600
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 0 | 1 | 1 |
Number of Pages | 2 | 5 | 8 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$75 - $250
Additional Revision
+$50Frequently asked questions
About Jungmin
Senior Ecommerce Backend Engineer | Java, Spring Boot, APIs, AI Automa
Seoul, South Korea - 12:08 pm local time
I’m a Senior Backend Engineer with 18+ years of experience building and operating large-scale ecommerce platforms. Previously, I led backend engineering for Gmarket/Auction item platforms in Korea, managing product registration, product data, high-traffic APIs, database migration, MySQL sharding, MongoDB migration, Kafka/Spark pipelines, and microservice modernization.
I can help you with:
- Ecommerce backend architecture and API development
- Java / Spring Boot backend systems
- Product, order, payment, inventory, and admin systems
- Database migration and modernization
- MySQL sharding, MongoDB, PostgreSQL, Redis
- Kafka / Spark data pipelines
- Payment gateway integration
- AI automation using LLM APIs
- Internal tools, admin dashboards, and workflow automation
- Server operations, monitoring, and performance optimization
Recent hands-on projects:
- Jullyssy Mall: A women’s fashion ecommerce store built with Next.js 14, Supabase, TossPayments, and Vercel
- SuppleCut: An AI-powered supplement analysis mobile app built with Flutter, Gemini API, Claude API, and Google Play Billing
- Hotel Pizza Ordering PWA: A QR-based multilingual ordering system for hotel/restaurant operations
My strength is not just writing code, but turning complex business requirements into reliable backend architecture, scalable APIs, and production-ready systems.
If you need a senior engineer who can handle both architecture and hands-on implementation, I’d be happy to help.
Steps for completing your project
After purchasing the project, send requirements so Jungmin can start the project.
Delivery time starts when Jungmin receives requirements from you.
Jungmin works on your project following the steps below.
Revisions may occur after the delivery date.
Review materials
I review your platform details, tech stack, API docs, database schema, screenshots, and main technical goals or issues.
Analyze architecture
I analyze backend/API structure, database design, ecommerce flows, scalability risks, performance bottlenecks, and operational readiness.