Tendering to Finance Audit
Consolidating tendering estimates, site material requisitions, contractor bills, and audit logs into a single software platform.
CONSTRUCTION & CONTRACTING
BJSN OS - 11-module ERP for multi-site contracting.
Replaces six disconnected spreadsheets with a single live ledger covering site supervisor logs, material requisitions, contractor billing, digital gate passes, and audit reports.
CONSTRUCTION SPECS11 MODULES LIVE
System PlatformBJSN OS Construction ERP
Ledger TypeSingle ACID Transaction Ledger
Site AppFlutter Offline Logbook
Gate PassesDigital Weighbridge Pass
Multi-Site Construction Practice
11 ModulesSingle Ledger
BJSN OS unified ERP coverage
Zero DiscrepancyAudit-Ready
Unified site-to-finance audit ledger
Digital GateReal-Time
QR weighbridge gate pass verification
100% IPFull Ownership
Source code and database schemas
01 / CONSTRUCTION CAPABILITIES
Construction ERP capabilities.
Material Dispatch Verification
Generating digital QR gate passes for incoming cement, steel, and aggregate trucks linked to weighbridge slips.
Flutter Field Logbook
Mobile app allowing site engineers to record daily labor attendance, weather delays, and material usage offline.
02 / CONSTRUCTION PHILOSOPHY
Construction margins are lost in the gap between site logs and finance spreadsheets.
BJSN OS closes that gap with a single live ledger accessible across all project sites.
03 / BJSN OS MODULE MATRIX
All 11 BJSN OS modules.
01 // PRE-CONSTRUCTION
1. Tendering & Bidding
Estimate cost calculations, rate analysis, and BOQ import.
02 // PROCUREMENT
2. Purchase Orders
Vendor PO generation, rate approvals, and delivery tracking.
03 // REQUISITIONS
3. Material Requisitions
Site engineer material requests linked to budget limits.
04 // FIELD LOGS
4. Site Supervisor Logbook
Daily progress entries, weather notes, and hindrance logs.
04 / SITE WORKFLOW
Our 4-step BJSN OS implementation.
Site Process Audit
Mapping site logbooks, gate pass steps, and approval hierarchies.
Single Ledger Setup
Configuring PostgreSQL ACID transaction ledger and tenant RBAC rules.
Single Site Pilot
Deploying BJSN OS to a single active site for engineer onboarding.
Multi-Site Rollout
Expanding across all contracting sites with executive BI charts.
05 / INSPECTABLE CODE
Construction ERP code snippets.
construction/ledger.ts
Single ACID transaction ledger consolidating 11 construction modules from tendering to finance audit.
1import { db } from "@arivu/db";23export async function createGatePass(passData: GatePassInput) {4 return await db.transaction(async (tx) => {5 const pass = await tx.gatePasses.create(passData);6 await tx.ledger.insert({7 type: "GATE_PASS_DISPATCH",8 siteId: passData.siteId,9 materialId: passData.materialId,10 timestamp: new Date()11 });12 return pass;13 });14}06 / GUARANTEES
Construction ERP guarantees.
100% IP Transfer
Complete BJSN OS source code, module schemas, and database migrations transferred.
Single Ledger Guarantee
Single live ledger eliminating material billing discrepancies across sites.
Upfront Mutual NDA
Protecting your tendering margins and vendor rate sheets with formal NDAs.
SECTOR CASE
BJSN OS Construction ERP Platform
11-module ERP replacing six disconnected systems with one live ledger covering tendering, procurement, site execution, billing, and finance audit.
BJSN OS MODULE MATRIX11 MODULES LIVE
1. Tendering
7. Gate Passes
2. Procurement
8. Equipment Tracking
3. Material Requisition
9. Billing
4. Site Logbook
10. Audit Report
5. Quality Audit
11. Executive BI
6. Attendance
07 / CONSTRUCTION FAQS
Questions about construction ERP?
What modules are included in BJSN OS Construction ERP?
BJSN OS includes 11 live modules: Tendering, Procurement, Material Requisitions, Site Logbook, Quality Audit, Labor Attendance, Digital Gate Passes, Equipment Tracking, Subcontractor Billing, Finance Audit, and Executive BI.