Hi, I am a vtiger developer and have more than 4 years experience in this field. presently I am working with vtiger 6.3 and am fully confident about your project. So, I am interested to work with you. I have developed many Standard/Extension modules and custom workflow for insurance company's project, same type task you are looking for. So, I am sure that I will fulfill your requirement better that you are expecting.
If you want to see any demo, please send a live task for me and I will develop and show you as soon as possible.
You have mentioned 4 types of task that have to solved.
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- Design Changes
- API Integrations
- Custom Modules
- Custom Workflows
But I am not sure about the full task that you are looking for. So, I am really don't know the exact budget. But if you will like my work and select me, then we will discuss the exact budget.
Vtiger Implementation [5.4, 6.X]
1. Standard Module
2. Extension Module
3. Twilio API Integration in vtiger
4. Reportico with Vtiger
5. VOIP integration in vtiger using zoiper
6. Have done many more customization as per client's requirement.
Please feel free to contact me if you have any queries.