Density Blaster

Overview

Density Blaster is a direct mail marketing platform that helps service companies build route density and reduce travel time between jobs. The platform features a custom postcard designer built with FabricJS and enables businesses to send personalized, property-specific marketing materials to targeted audiences.

What I Built

MVP Development

Built the complete MVP from concept to production:

• Postcard Designer Tool

  • Full-featured drag-and-drop designer using FabricJS
  • Support for multiple postcard sizes (4x6, 6x9, 6x11)
  • Template customization and brand management
  • Real-time preview and editing

• Map-Based Audience Builder

  • Interactive map interface for creating target audiences
  • Geographic boundary drawing for neighborhood targeting
  • CSV upload for customer list imports
  • Audience segmentation and management

• Personalization Engine

  • Dynamic content generation for each recipient
  • Property-specific quotation system
  • Custom fields and data merging
  • Automated personalization at scale

• Campaign Management

  • Bulk postcard sending automation
  • Campaign scheduling and deployment
  • Location and time-based discount options
  • Integration with mailing service providers

Technical Implementation

Frontend Architecture

• Built interactive postcard designer with FabricJS canvas manipulation
• Implemented complex state management for design elements
• Created responsive map interface for audience selection
• Developed real-time preview system

Backend Systems

• Designed data pipeline for bulk personalization
• Built integration layer for mailing service APIs
• Implemented campaign management and tracking
• Created CSV processing for audience imports

Data Management

• MongoDB for storing designs, audiences, and campaigns
• Efficient data structures for handling bulk operations
• Caching layer for performance optimization

Impact

• Successfully launched MVP enabling businesses to run marketing campaigns within minutes
• Postcard designer eliminated need for external design services
• Personalization engine enabled property-specific quotations at scale
• Map-based targeting helped service companies build route density
• Bulk automation reduced campaign deployment time from days to minutes
• Platform positioned for expansion to USA and Canadian markets