Centralized SaaS Access Platform

Job ID: 40505245

Budget: €30 – €250 EUR

I’m planning a single hub that lets our users sign in once and reach three core suites—CRM systems, Accounting software, and Project management tools—through a hybrid mobile app and complementary web portal. The entire experience should follow Material Design so the look and feel stay consistent across Android, iOS, and the browser.

Core scope
• Single sign-on that authenticates across every connected product
• Home dashboard that surfaces active subscriptions and licence counts at a glance
• Full subscription, licence, plan payment, and renewal workflows
• Invoice history tied to each user account
• Real-time and in-app notifications
• Robust admin console to manage users, plans, and granular access rights
• Sales dashboard that tracks clients, commissions, and referral performance

Technology notes
My first choice is a Java back end—Spring Boot or similar—and a Flutter front end for the hybrid app, but if you can justify an alternative stack that shortens time-to-market or maintenance overhead, I’m open to hearing it.

What I need from you
1. A ballpark cost broken into major milestones
2. An estimated timeline with key phases (architecture, MVP, testing, launch)
3. The tech stack you recommend and why
4. Links or brief summaries of comparable multi-product portals you have shipped

Once I review proposals, I’ll share the brand assets and API documentation for the CRM, Accounting, and Project Management suites so we can move straight into architecture. Looking forward to seeing how you would bring this platform to life.