Hi,
I have studied the Postman application you have mentioned in your post and done R&D of the same. Your requirement is pretty clear and we can achieve the same in best time and budget.
We have developers with required skill set and help you on the project.
Can you please share the wire frames and requirement specs to get more clarity on the requirement?
To give you some background about us, we're Ksolves India Pvt. Ltd., a boutique IT solutions firm functioning in the market for last six years now.
We have been working on desktop application development since our inception and can pledge our undivided focus and skills on the same.
Please get in touch so that we can understand your requirement more better and submit you our proposal on the same.