AI Automation System development

We are looking for an experienced developer to build an AI-powered email automation system that can intelligently process incoming emails, manage new sales enquiries, respond to customer queries, and streamline our lead management workflow. The solution should automatically classify emails, generate context-aware responses, extract lead information, and integrate with our CRM or internal systems where required Preferred Tech Stack Java 17/21 Spring Boot Spring AI / LangChain4j (preferred) OpenAI API (GPT models) Anthropic Claude API Gmail API / Microsoft Graph API (Outlook) PostgreSQL or MySQL Redis (optional) Docker REST APIs OAuth2 / JWT AWS (optional) Screening Questions 1) Have you built an AI-powered email automation or customer support system? Please describe your experience. 2) Please share links to relevant GitHub repositories, portfolio projects, or case studies.