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Project Overview
We engineered a comprehensive, end-to-end ERP system for a leading infrastructure and construction firm. The platform unifies project management, workforce payroll, AI-driven floor plan estimation, Google Sheets ledger generation, contractor billing, attendance tracking, and multi-role access control into one cohesive system — replacing scattered spreadsheets and manual processes entirely.
The Challenge
The client was managing dozens of concurrent construction projects using disconnected tools — attendance in one spreadsheet, payroll in another, and bills tracked manually. There was no unified visibility into project financials, workforce costs, or material stock. They also needed an AI tool to generate cost estimates directly from uploaded architectural drawings (DWG/DXF files) without relying on external vendors.
Our Solution
We built a full-stack platform using Next.js 14 (App Router) for the frontend and a Python FastAPI backend with PostgreSQL. The system features a role-based portal covering Admins, Site Engineers, Supervisors, Contractors, Consultants, Workers, and Clients. Key innovations include: an AI Estimator that analyzes DWG/DXF floor plans using vision models to generate BOQ and BBS reports priced against a published Schedule of Rates (SOR); automated Google Sheets ledger generation for client billing; presigned MinIO storage for all documents and drawings; and a real-time attendance and payroll engine with daily/monthly wage calculations.
Tech Stack
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