Development of the database structure PostgreSQL 10.5, WEB server application in Java, client office application on PowerBuilder 12.5, placing the project in a data center on leased VPS.

Development of a fuel consumption metering system in a transport company.Development of a fuel consumption metering system in a transport company. And also the accounting of hours and spare parts.

The system of payroll in the enterprise. Including all tax benefits and allowable deductions, income tax.

A system for collecting information about an advertising company. Using the tools of Google Tag Manager.