C# JSON Extraction for Market Analysis

I am looking to hire a skilled freelancer with an extensive background in C#, JSON extraction, and ideally, some understanding of market analysis. The task involves extracting and converting the 'Vehicles' category and all its sub-categories from "https://sahibinden.com" into a JSON format.

Key responsibilities include:

- Implementing vehicle category data extraction from the mentioned website using C#.
- Converting the obtained data into a JSON format for easy utilization in market trend analysis.

Expertise requirements:

- Proficient in C#
- Strong knowledge of JSON
- Experience in data extraction projects
- Familiarity with market analysis concepts is a plus

Please note that the resulting source code from this project's completion should be handed over as part of the deliverables. This insight is for a one-time study, so a recurring schedule for data extraction is unnecessary. Interested experts are welcome to place their bids.