Drill and Blast Bidding Software

I'm looking for a desktop application to streamline our bidding process for drill and blast projects. The primary focus of this software model should be on bidding calculations.

Essential features should include:
- Automatic bid generation
- Historical data analysis
- Scenario comparison

Ideal skills and experience:
- Strong background in software development, particularly for desktop applications
- Experience with bidding processes in construction or mining industries
- Proficiency in data analysis and integration of historical datasets

Additional requirements:
- The freelancer will need to sign a Non-Disclosure Agreement (NDA) before commencing work.
- I already have a working Excel comprehensive tender model that is copyrighted, which will serve as a reference.

Please provide a portfolio showcasing similar projects.