You will get a financial database schema with double-entry accounting logic

Project details
You will get a robust database schema designed to maintain financial integrity, not just store data. As a qualified Accountant and Full-Stack Developer, I bridge the gap between code and accounting principles. I ensure your database structure handles Cost of Goods Sold, Inventory Valuation, and Tax calculations correctly from day one, preventing the "floating dollars" and math errors common in standard development.
The Problem:
Many software projects fail because the database is treated like a "bucket" to dump data. When it's time to run a Profit & Loss report or calculate inventory value, the numbers don't match reality.
The Solution:
I treat your database as a financial engine. Using my background in auditing and costing, I design schemas that enforce "Double-Entry" logic and internal controls directly into the data structure.
What you get:
Mathematical Accuracy: Tables designed to handle COGS, margins, and tax without errors.
Audit Trails: Built-in structures to track who changed what data and when.
Scalability: A clean, normalized structure that won't break as your business grows.
Let's build the foundation of your system correctly so your reports are always accurate.
The Problem:
Many software projects fail because the database is treated like a "bucket" to dump data. When it's time to run a Profit & Loss report or calculate inventory value, the numbers don't match reality.
The Solution:
I treat your database as a financial engine. Using my background in auditing and costing, I design schemas that enforce "Double-Entry" logic and internal controls directly into the data structure.
What you get:
Mathematical Accuracy: Tables designed to handle COGS, margins, and tax without errors.
Audit Trails: Built-in structures to track who changed what data and when.
Scalability: A clean, normalized structure that won't break as your business grows.
Let's build the foundation of your system correctly so your reports are always accurate.
Database Type
MySQL, SQLite, PostgreSQLWhat's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Source Code | - | - | - |
Frequently asked questions
About Maxwel
Python Backend Engineer | FastAPI | Financial Systems | APIs
Nairobi, Kenya - 10:43 am local time
My background combines software engineering with over 20 years of experience in accounting, auditing, financial controls, and business systems. This allows me to build solutions that are technically robust and aligned with real business needs.
I specialize in developing Python applications using FastAPI, REST APIs, WebSockets, SQL databases, and automation pipelines. I also build analytical systems for financial data, inventory management, reporting, monitoring, and algorithmic trading.
Services I provide include:
• Python backend development (FastAPI)
• REST API development and integration
• SQL database design and optimization
• Business process automation
• Real-time dashboards and monitoring
• Financial reporting automation
• POS and inventory management systems
• Data reconciliation and audit tools
• Trading system development and analytics
• ETL pipelines and data processing
Recent projects include:
• Production-grade algorithmic trading platform with real-time analytics
• FastAPI backend with WebSocket live monitoring
• Automated diagnostics and system health monitoring
• Inventory reconciliation and financial control systems
• M-Pesa payment automation
• Audit trail and reporting platforms
I write clean, modular, and maintainable code with a strong focus on performance, scalability, and reliability.
If you're looking for someone who understands both software engineering and business operations, I can help design, build, improve, or troubleshoot your system from architecture through deployment.
Steps for completing your project
After purchasing the project, send requirements so Maxwel can start the project.
Delivery time starts when Maxwel receives requirements from you.
Maxwel works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis
Detail: I will review your business model and identify exactly what financial reports you need (e.g., P&L, Balance Sheet).
ERD Design (Visual Map)
Detail: I will create a high-level Entity-Relationship Diagram (ERD) so you can visualize how your data connects before coding begins.


