Hi,
I have 9 years of software development experience. I can develop this system for you in 3 days. You just want to implement you SLA logic for your tasks and time duration.
Relevant Skills and Experience
PHP, MYSQL, JQUERY
Proposed Milestones
$33 CAD - Before starting of project
$60 CAD - After first demo of functionality
$40 CAD - after final delivery and feedback
Are you also want to develop UI for the same?