Developer — Cargo Load Optimizer (SaaS Web App)

Overview

*1. User Accounts & Subscriptions*

• Registration, login, password reset (via Supabase or similar)
• Stripe integration for monthly subscription billing
• Free trial or freemium tier (TBD)

*2. Custom Truck Profiles*

• Each user can create and save multiple truck configurations
• Fields: internal length, width, height, max payload weight, axle limits (optional)
• CRUD interface to manage saved truck profiles
• *3.
• Cargo Import*
• Upload Excel (.xlsx) or CSV file with cargo dimensions
• Template provided (columns: item name, length, width, height, weight, quantity, stackable yes/no)
• Validation and error handling for bad data

*4. 3D Bin Packing Algorithm*

• Fit cargo items into the selected truck using an efficient 3D bin packing algorithm
• Respect stackability rules, weight limits, and item orientation options
• Return a loading order and placement coordinates for each item
• *5. 3D Visualization*
• Interactive 3D view of the loaded truck (Three.js or similar)
• Each cargo item displayed as a colored box with label
• Rotate/zoom the view
• Show utilization percentage (volume and weight)

*6. Loading Plan Export*

• Export the loading plan as PDF or printable view
• Summary: total items, total weight, space used (%)

What I Will Provide

• Full feature specification document
• Excel import template design
• UI wireframes (in progress)
• Feedback and testing throughout the project

How to Apply

• Please send me:
• Your relevant experience (algorithms, SaaS apps, logistics if any)
• 1–2 examples of similar projects
• Your proposed approach to the 3D bin packing problem
• Your availability and rate
• Candidates who address the bin packing approach specifically will be prioritised — this is the technical heart of the project.