Property exchange system for the Ukrainian MTA project

Budget: 4500 PLN Deadline: 5 days

Hello! I am ready to implement a property exchange system between players for your project, including the full cycle: logic, interface, checks, error protection, and logging.

What will be implemented:
exchange of cars, houses, apartments, businesses, and money
exchange with and without additional payment
marker "Property Exchange" in the business center
sending offers by ID or nickname
checking the distance between players
accept/reject exchange window
exchange menu with 2 columns
adding/removing property and money
two-step confirmation
auto-cancellation upon exit, departure, cancellation
resetting confirmation upon any change in conditions
restrictions on re-adding property
blocking property that is already involved in an exchange or is for sale
messages if there is no property in the category
logging in Logs / Interfacer
I will pay special attention to:
protection against duplicates and state conflicts
correct synchronization between two players
clean server logic
convenient structure for further expansion

Experience:
I have experience in developing game logic, UI/menu, exchange systems, inventories, server checks, and logging. I can create not just a working mechanic, but a stable system with protection against problematic scenarios.

If you provide an example of the panel design and the current technical base of the project, I will be able to quickly integrate the system into your server interface. Expand

Budget: 5000 PLN Deadline: 7 days

Hello!
I have reviewed the technical assignment for the development of the asset exchange system. The task is clear: it is necessary to implement a secure mechanism for transferring assets (cars, real estate, businesses, money) with two-level confirmation and protection against fraud.
My advantages for this project:
• Security logic: I will implement automatic resetting of the "Ready" status upon any change in the exchange conditions (addition/removal of assets, change of amount), which eliminates the possibility of last-minute substitution.
• Working with the database and Interfacer: I will set up proper logging of all stages of the transaction through Interfacer to track operations and resolve disputes.
• Frontend & Backend: I have experience creating similar interfaces (selection menus, categories, lists) with dynamic data updates without delays.
• Checks and validation: I will add all necessary conditions: checking the distance between players, asset status (sale/rent), presence of duplicates in the exchange.
Work stages:
1. Creating the UI according to your design (categories, asset cards).
2. Writing the logic for processing requests on the server side.
3. Integrating the system of checks and logging.
4. Testing scenarios (player exit, price change, cancellation).
I am ready to start discussing the details of the architecture and implementation. Expand