Construction Project Management Platform Build

I’m looking for a developer who can create a purpose-built platform that lets me run every aspect of my construction projects from one place. The core of the system has to make life easier for two distinct roles—project managers and site workers—so role-based dashboards and permissions are essential... (Budget: $250 - $750 USD, Jobs: Database Development, HTML, MySQL, PHP, Project Management, User Interface / IA, Web Development, Website Design)