Full-Stack AI Expert Needed to Build "Digital Brain" – AI-Powered Enterprise Assistant Platform

We are looking for an experienced AI / Full-Stack Developer or a development team to build the MVP of an innovative SaaS platform named "Digital Brain". The core concept of Digital Brain is an AI-driven digital assistant tightly integrated with advanced LLMs (like OpenAI GPT-4, Claude, or custom fine-tuned models). The platform will allow companies and organizations to sign up, manage their daily operations, automate workflows, and execute routine business tasks through intelligent, conversational interactions. Key Features & Requirements: Multi-Tenant Architecture: Secure company registration, user authentication, role-based access control (RBAC), and organization dashboards. AI Model Integration: Seamless API connection with top-tier LLMs (and support for custom vector databases/RAG for company-specific knowledge bases). Task Automation & Daily Workflow Engine: Tools where users can delegate day-to-day corporate tasks (e.g., data sorting, drafting reports, scheduling, answering internal/external queries) directly to the AI "Digital Brain". Intuitive UI/UX: A clean, modern, and responsive dashboard designed for enterprise users (React, Next.js, or similar modern stacks). API & Third-Party Integrations: Ability to connect with popular business tools (Slack, Google Workspace, CRM systems, etc.).