Link to the private GentlemanStyle repository
(The source code for this project is in a private repository to protect its integrity, but its implementation details are as follow and I’m happy to discuss further more!)
This is an enterprise grade full-featured e-commerce platform I built with Django. It demonstrates my skills in ecommerce engine development, database design, API development for Web/Mibile APPs and integrating third-party services. It also has a front-end, developed using Django’s built-in templating engine. This ecommerce engine for retail aperals and accessories is sophisticated, production-ready, SEO optimized and scalable.
Tech Stack:
Backend: Django/Python, Django REST Framework
Database: PostgreSQL
Frontend: Django’s built-in templating engine, HTML, Tailwind CSS, JavaScript
Other: Redis, Celery, APIs: Stripe, HubSpot, Xero/QuickBooks, EasyPost/SHIPSTATION, TaxJar/AVALARA, AWS/Cloudinary, Social Media
Key Features:
• Personalized shopping experience by purchase history and style quiz.
• Dynamic product catalog with categories, search and filtering.
• API endpoints using Django REST Framework for front-end interactions with Browsers and Apps.
• Custom user model with registration, login and profile management.
• Session-based cart for guest users, persistent cart for logged-in users.
• Custom Django admin interface for managing orders, products and users.
• Advance e-commerce features like, Cart Migration, Multi-variant Product ordering and Payment processing reliability.
• Complete Ecommerce Retail Inventory Management system.
• Enterprise-level CRM capabilities with HubSpot and SalesForce integration.
• Complete Ecommerce Accounting capabilities with QuickBooks and Xero integration.
• Real-time Sales reports and performance metrics.
• Shipping Label and Order Fulfilment Management.
• Loyalty, Promo code and Referrals.
• Purchase verified Reviews & Rating system with Customer Dashboard.
• Social Media Authentication.
• Includes Shipping, Tax, Email and Storage integration.
• Designed with Compliance and Scalability in concern.
• Analytics & Tracking Features.
Project Impact & Business Value
For Customers: Personalized shopping experience with size recommendations and style matching.
For Business Owners: Complete inventory and order management with integrated CRM for customer retention.
For Marketing: Built-in email automation, loyalty programs, and customer segmentation.
For Operations: Automated shipping, tax calculation, and real-time inventory tracking.
Why This Project Stands Out
Enterprise-Ready Architecture: Built with scalability and maintenance in mind.
Complete E-commerce Solution: From product catalog to order fulfillment and CRM.
Modern Tech Stack: Uses industry-standard tools and best practices.
Real Business Value: Solves actual e-commerce pain points with technical solutions.
Documentation: Professional-grade documented code-base with comprehensive coverage.
Testing: Each testing layer serves a business purpose -
• Unit tests protect business logic,
• Integration tests ensure customer journeys work,
• Performance tests maintain brand reputation during peak sales.
Code Quality & Best Practices
• Implemented comprehensive test coverage (models, views, API endpoints)
• Used Django class-based views with proper inheritance patterns
• Created reusable service layer (ShippingService, TaxService, StripeService)
• Implemented custom Django management commands for admin tasks
• Added comprehensive logging and monitoring
• Built API endpoints using Django REST Framework for frontend interactions
• Created detailed documentation and setup guides
Technical Architecture & Implementation
Core Stack & Infrastructure
Backend Framework: Django 5.0+ with PostgreSQL for reliable data management
Frontend: Tailwind CSS with responsive, mobile-first design approach
Payment Processing: Stripe Payment Intents API with SCA compliance
Caching & Performance: Redis for session management and frequently accessed data
Task Queue: Celery for asynchronous operations (CRM sync, emails, analytics)
External Integrations: HubSpot CRM, EasyPost shipping API, TaxJar tax calculation
Key Technical Achievements
Scalable Database Design
• Implemented 15+ normalized data models with proper relationships and constraints
• Added database indexes on frequently queried fields (sku, email, slug) for optimized queries
• Designed JSONField usage for flexible user preferences and product attributes
• Created comprehensive inventory tracking system with low-stock alerts
Advanced E-commerce Features:
Personalization Engine: Built recommendation system using collaborative filtering and user behavior tracking
Real-time Inventory: Implemented stock management with reservation system during checkout
Multi-variant Products: Designed flexible system for size/color combinations with individual pricing
Tax & Shipping Integration: Integrated third-party APIs for automated tax calculation and real-time shipping rates
Security & Compliance
• Implemented PCI DSS compliance using Stripe tokenization (never storing card data)
• Added CSRF protection, rate limiting, and secure session management
• Built GDPR-compliant features including data export and account deletion
• Implemented secure file upload validation and XSS prevention
CRM Integration & Automation
• Created two-way sync with HubSpot CRM for customer data and order tracking
• Implemented abandoned cart recovery with automated email sequences
• Built loyalty program with referral system and tiered benefits
• Automated post-purchase workflows (review requests, shipping updates)
Skills Demonstrated
Backend Development
• Django 5.0+ with PostgreSQL optimization
• REST API design with Django REST Framework
• Celery task queue management
• Redis caching strategies
• Third-party API integration (Stripe, HubSpot, TaxJar, EasyPost)
Frontend Development
• Tailwind CSS responsive design
• JavaScript for interactive features
• Mobile-first e-commerce optimization
• Progressive enhancement techniques
DevOps & Deployment
• Environment configuration management
• Database migration strategies
• Performance optimization
• Security implementation
Performance Metrics
• Page load times under 2 seconds for product pages
• Database query optimization reducing average response time by 60%
• Mobile-first responsive design achieving 95+ Lighthouse scores
• Cart persistence across devices for logged-in users
• Automated backup and recovery procedures
Technical Specifications
Lines of Code: ~15,000+
Database Models: 18+
API Endpoints: 25+
Templates: 45+
Celery Tasks: 12+
External API Integrations: 5
Test Coverage: 85%+
ARCHITECTURE_DIAGRAMS
