Required CSS,Enterprise Software,HTML,sql,Erp Projects freelancer for Custom ERP for a Manpower supply firm job

We need an ERP solution with a main focus on HR Management and Invoice Management.
At AETC, we currently manage a workforce of 400+ employees who are employed with multiple clients. We need an ERP that will help us in managing all the Employee details, help us in Payroll, manage client details, create proposals and invoices.

We will provide the RFP document with the complete info on the ERP features we need.

We tried using a open source script called Rukovoditel and was able to add most of the features. But some of the features we need has be to customized and we don't have that skillset. So you can either use Rukovoditel or any other opensource script and have it customized to our needs.

Skills & Expertise Required

CSS Enterprise Software HTML sql Erp Projects