# Construction Verification Platform - Complete Full-Stack MVP Needs Polish & AR Integration ## Project Overview I’ve built a production-ready full-stack MVP for BilMilli - a construction verification platform using 3D models as legally enforceable contracts. 85% complete with 22,839 lines of production code, full API implementation, working web dashboard, and functional mobile app. Need experienced team for: 1. Phase 1: Test and evaluate existing system (paid milestone) 1. Phase 2: Polish frontend and fix bugs 1. Phase 3: Complete mobile AR features 1. Phase 4: Build ML/CV service for automated verification This is NOT a prototype - it’s a fully-functional platform. You’ll be polishing and completing an advanced system, not building from scratch. ## What’s Already Built (Production-Ready) **Backend - 100% Complete (14,835 lines)** - FastAPI with 62 endpoints - PostgreSQL + Redis + MinIO storage - 17 SQLAlchemy models, JWT auth - 7 Alembic migrations **Frontend - 80% Complete (5,461 lines)** - React 18 + TypeScript + Vite - Three.js 3D GLB model viewer - 7 dashboard pages (login, projects, deviations, payments) - Full API client with type-safe calls **Mobile - 70% Complete (2,543 lines)** - React Native + Expo + Redux Toolkit - 5 screens (login, projects, AR camera, photo review) - GPS/sensor integration, photo quality heuristics **Core Features Implemented:** - Multi-format model parser (DWG, IFC, DXF, GLB) - 16-stage construction pipeline with progressive freezing - GPS-anchored photo storage with metadata - Deviation detection with Accept/Reject/Escalate workflow - Payment gating tied to stage approval - Cost-of-change calculator - Thermal analysis, AC placement optimization - Comprehensive testing (2,276 lines) - Docker deployment ready - 17 documentation files (241KB) ## What Needs Completion **Phase 1: Testing & Evaluation (PAID MILESTONE)** - Set up Docker environment - Test all 62 API endpoints - Test web dashboard and mobile app - Upload sample DWG and verify processing - Test complete workflows - Document bugs and missing features **Phase 2: Frontend Polish** - Fix bugs from Phase 1 - Improve responsive design and 3D viewer - Add photo gallery with GPS map - Build stage timeline visualization - Create analytics dashboard with charts - Enhance 3D model (click objects, show frozen elements, deviation markers) - Add user management UI - Write E2E tests (Playwright/Cypress) **Phase 3: Mobile AR Integration (CRITICAL)** - Real-time AR overlay showing expected object positions - GPS + Compass + Accelerometer fusion - ARKit (iOS) and ARCore (Android) integration - Green circles showing “Socket should be HERE” - Real-time positioning guidance - Enhance quality checks (blur, lighting, tape measure detection) - Improve camera integration and offline sync - Push notifications and haptic feedback - Test on multiple iOS/Android devices **Phase 4: ML/CV Service** - YOLOv8 object detection (sockets, switches, drains) - Position estimation using tape measure - Quality assessment enhancement - Deviation detection and severity classification - FastAPI endpoints for photo analysis - Docker container with GPU support - Integration with main backend ## Tech Stack (Already Set) Backend: FastAPI + PostgreSQL + Redis + MinIO Frontend: React 18 + TypeScript + Three.js + TailwindCSS Mobile: React Native + Expo + Redux Toolkit ML: FastAPI + PyTorch + YOLOv8 (to build) ## Required Skills **Must Have:** - React + TypeScript (3+ years) - React Native + Expo (2+ years) - Three.js or 3D library experience - Mobile GPS/sensors - Python for ML integration - Experience completing existing codebases (NOT building from scratch) **Nice to Have:** - AR development (ARKit/ARCore) - Computer vision / ML - PyTorch or TensorFlow - Docker / DevOps - E2E testing **Team:** 2-4 developers (Full-Stack lead, AR specialist, ML engineer, QA) OR single developer with AR and ML experience. ## How to Apply Your proposal MUST include: **1. Your Team** - Roles and experience - GitHub profiles, portfolio links **2. Relevant Experience** - Projects where you completed/polished existing codebases - Mobile apps with GPS/AR - 3D visualization (Three.js) - Computer vision projects **3. Technical Approach** - AR positioning strategy in React Native - ARKit/ARCore integration plan - CV pipeline approach - Testing strategy **4. Pricing & Timeline** - Your proposed budget for each phase - Estimated timeline per phase - Payment structure preference **5. Phase 1 Plan** - Testing methodology - Deliverables Generic proposals ignored. Show you understand the complexity and have relevant experience. ## Why This Project Excites - Production-ready MVP (22,839 lines done) - Full-stack functional - needs polish - Real market: Construction industry $150B+ annually in UAE - Cutting-edge: AR-guided verification - Complete docs (241KB) - Growth potential across countries - Portfolio showcase piece - Well-architected with tests, migrations, Docker ## Success Metrics - All 62 endpoints tested - Polished web app with smooth UX - Mobile AR overlay working accurately - CV service detecting deviations - End-to-end demo working - Professional UI ready for pilots - Comprehensive test coverage ## Confidentiality - NDA required before Phase 1 - Private GitHub repository - Work-for-hire agreement - No code reuse ## FAQ **Q: Can I see code before applying?** A: No. Full access after selection for Phase 1. **Q: Remote work?** A: Yes, 100% remote. Timezone overlap (UAE +4 GMT) preferred. **Q: Need construction experience?** A: No. Full documentation provided. **Q: Different tech stack?** A: No. All stacks chosen and implemented. **Q: Can do only one phase?** A: Yes, specify in proposal. Multi-phase teams preferred. **Q: Why need team if 85% done?** A: Remaining 15% critical: AR positioning (complex native modules), ML/CV service (specialized), cross-platform testing, UX polish. ## The Vision BilMilli transforms construction verification by making 3D models legally enforceable. MVP 85% ready - needs polish and critical features (AR positioning, ML verification). One pilot project - Prove concept - Scale to 100+ projects - Series A funding Join me in building the future of construction governance. **Apply with detailed proposal now!**