Hello,
SharePoint Expert can easily help you with anything related to SharePoint including "Develop an app for your portal" project. We have gone through the project description and can reproduce the features and functionality requested by you, under the guidance of our Senior Sahrepoint consultant with 16 years of experience in SharePoint, Azure.
Our skills lies in:-
Development of technical proficiency in (Custom workflows, Web Parts, list templates, event receivers, C#.NET, SharePoint Designer, O365) SharePoint Administrator: -
* Build, administer and maintain SharePoint development, test, and production servers, including installation of service packs
and updates/patches
* Monitor and troubleshoot a problem with SharePoint, IIS, Windows Services
* Experience with SharePoint Designer, IIS, SQL Server, and SharePoint workflow foundation
* Thorough understanding of these concepts: Collaboration, Portals, Enterprise Search, Enterprise Content Management,
Business Process and Forms
* Experience in SharePoint Office 365 and integration between on-prem and SharePoint O365 environment and many more.
* Working knowledge of SharePoint for Business Intelligence, PowerPivot, Excel Services and PerformancePoint Services
* Solid understanding and experience with HTML, CSS, XML/XSD, XSL/XSLT, CAML, PowerShell & JavaScript.
Looking forward to your positive reply.
Regards
Note:- Budget is a placeholder. We can also work in hourly, weekly or monthly basis.