NAZMUL

Double Entry Accounting

Accounting & Financial Management System

Completed
2023-2025
Backend
Double Entry Accounting
007
Year

2023-2025

Duration

Ongoing

Team

3 engineers

Role

Backend Developer / Software Engineer

Scalable accounting platform for double-entry bookkeeping, ledgers, vouchers, and financial reporting

Overview

Double Entry Accounting is a financial management system built around double-entry bookkeeping principles. The platform provides structured account management, journal and voucher entries, customer and vendor ledgers, invoices, refunds, and financial reporting. The system was designed to maintain accounting consistency while providing a clear and auditable view of business transactions.

Key Achievements

Double-entry accounting workflow

Chart of accounts and account hierarchy

Journal and voucher management

Customer and vendor ledger management

Invoice and refund management

Financial reporting and transaction history

Structured and auditable financial transactions

Technical Challenges
01
Maintaining Accounting Consistency

Every financial transaction must maintain balanced debit and credit entries.

SOLUTION →Designed transaction workflows that validate and persist corresponding debit and credit entries as a single accounting operation.
02
Ledger Management

Customer, vendor, and general account balances need to remain synchronized with financial transactions.

SOLUTION →Built ledger-based transaction processing with centralized account and balance calculations.
03
Financial Reporting

Business users require accurate transaction summaries and account-level financial reports.

SOLUTION →Designed optimized queries and reporting structures for account, ledger, transaction, and financial summaries.
metrics.json
Double Entry
Accounting Model
Customer & Vendor
Ledgers
Journal & Voucher
Transactions
Financial
Reports
Technology

Frontend

ReactAnt DesignFinancial dashboards

Backend

Node.jsTypeScriptExpress REST APIs

Database

PostgreSQLPrismaRedis

Accounting

Double-entry bookkeepingChart of accountsJournal & voucher entriesCustomer & vendor ledgersFinancial reports

Infra

DockerNginxCloud hostingCI/CD
Development Timeline

PHASE 01Accounting Foundation

Chart of accountsDatabase architectureAccounting rules