Senior Full-Stack Agency Needed for AI-Powered Mobile + Web SaaS Platform

We are looking for an experienced software development agency to build a scalable AI-powered SaaS platform that includes: Web application Mobile application AI-powered automation features Backend APIs and infrastructure This is a long-term project with multiple phases and ongoing development opportunities. The platform will focus on workflow automation, customer management, scheduling, AI assistance, analytics, and real-time operational tools for service-based businesses. We are specifically looking for an agency with proven expertise in: Required Skills: Full-stack web development Mobile app development (iOS + Android) AI/LLM integrations Scalable backend architecture Cloud infrastructure UI/UX implementation API integrations Database architecture Preferred Tech Stack: React / Next.js Flutter or React Native Node.js / NestJS Python AI services OpenAI / Claude integrations AWS or GCP PostgreSQL Docker AI Features: The platform will include AI-powered capabilities such as: Conversational AI assistant AI-generated summaries Smart recommendations Workflow automation Semantic search / knowledge retrieval What We Need From the Agency: End-to-end development Strong communication Weekly progress updates Ability to scale team as needed Clean architecture and documentation Dedicated PM or technical lead To Apply: Please share: Relevant AI + SaaS projects Mobile apps you have built Team structure Estimated availability Suggested architecture approach Your preferred tech stack We are looking for a long-term collaboration with an agency capable of handling both MVP and scaling phases.