Developer for digital signature website

We have business analyst, PM and business side of the project and we are looking to integrate a dedicated and collaborative developer/s.

We need to implement a country specific digital signature for imported documents as well as forms created in the platform.
We have clear requirements, flowcharts and all project assets needed but a good example is Docusign or Adobe Sign platforms.

DELIVERABLES
At this point we are targeting an MVP with the following characteristics:
- On screen handwritten signature
- Fingerprint, video and audio recording (other bio-metrics should be integrated at a different stage)
- Official time stamp (provided by government entity)
- SMS and email security verification
- Publishing and distribution flows (distribution of a document to be signed, and singed documents collection)
- Metadata retention
- Signature or singed document validation mechanism

We also need an assessment of server side configuration and hardware needed for this project.

time frame
1 month.
This should be a straight forward exercise since we are not creating any new functionality that doesn't exist in the market already. Many of the mechanisms are APIs or existing approaches and paradigms, it's a matter of connecting the dots and having an MVP that can be developed with customization later (hopefully by the same developer/s with a different project).