I will build a gpt document QA API in dotnet


About this gig
Looking for a .NET developer with fintech experience?
I have over 4 years of experience working as a .NET developer in a major European bank, and over 6 years of total .NET development experience. My daily job is to build and maintain business-critical systems that keep the global financial wheels spinning.
If you are looking for someone to build a GPT-powered document Q&A API for your manuals, product docs, business documents, etc., I'll be glad to help.
From this gig, you'll get:
- GPT document Q&A API in .NET / C#
- OpenAI API integration
- document-based answer generation
- source reference setup
- API key configuration
- database integration
- business logic in C#
Need extra documents, file types, answer fields, database integration, Docker setup, or anything else outside the package scope? Drop me a message and we'll do a custom offer tailored to your needs.
I look forward to working together.
Get to know Michal Moc
NET, C sharp, ETL pipelines
- FromCzech Republic
- Member sinceMar 2025
- Avg. response time1 hour
- Last delivery3 weeks
Languages
English, Czech
My Portfolio
FAQ
Does this include a frontend chatbot UI?
This gig is for the backend/API part. For frontend work please let me know and we can do a custom offer.
Do I need my own OpenAI API key?
Yes. Please make sure to acquire your own OpenAI API key or access credentials before ordering.
What document formats can you work with?
Standard formats such as PDF, TXT, Markdown, DOCX, CSV, JSON, and other formats supported by the project scope.
Can the API answer only from my documents?
Yes. The goal is to return answers based on the provided documents. If the answer is not found in the documents, the API can be designed to say that.
Do you have real fintech experience?
Yes. Please check the Work Experience section on my profile for details.

