Complete Business Management Platform

I have a web application that is approximately 70% complete and I'm looking for an experienced full-stack developer to help finish it. The application is a business management platform that enables companies to manage projects, clients, teams, and workflows from a single system. The core architecture, design, and primary functionality are already built on a clean, well-organized codebase. Completed features include user authentication, client and account management, project management, team and department management, an admin panel, a workflow automation engine, and an analytics data layer. The remaining work includes building task management screens (Kanban and list views), timesheet and time-tracking pages, analytics and reporting dashboards with charts, workflow management interfaces for end users, a notification system, invoice generation, expense tracking, and a resource planning view. The design system is already established, so all new functionality should follow the existing look and feel. I'm looking for a developer who can confidently extend the current codebase rather than rebuild it, deliver clean and consistent work, work independently from clear requirements, and provide regular communication and updates. Please include examples of similar projects you've completed and let me know which features you would prioritize first and why.