Multi Purpose AI Agent Development

Java, Python, PostgreSQL, JSON, OpenAI, LangChain, AI Chatbot Development, AI Agent Swarms · I have a small in-house codebase that already runs a few large-language-model helpers, but I now need to expand it with three new agents: a Sales Assistant, an Email Agent, and a Document Management Agent. All three must plug into the same Python stack (LangChain, OpenAI API, vector store, webhook layer) and respect our existing coding patterns.

Here is the core scope we will iterate on together:

• Sales Assistant Agent – Lead generation from incoming data feeds and web sources – Follow-up communication that can draft, personalise, and schedule messages – Basic sales analytics so my team can see pipeline health at a glance

• Email Agent – Automated responses that pick the right template and tone – Sorting and categorisation into predefined folders/labels – Content analysis to flag intent, urgency, or sentiment – Ability to read attached documents (e.g. purchase invoices) and convert key data into structured JSON for downstream systems

• Document Management Agent – Ingest and index new files into our vector database – Provide conversational retrieval over stored documents – Enforce role-based access using the permissions model we alrea