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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 already have in place Success criteria: each agent runs as an independent service with a simple REST endpoint, ships with unit tests, and is delivered as a clean, well-documented Git repository that my developers can pull and deploy. I will share API keys, sample datasets, and further business logic once we open a chat here on Freelancer. If you have recent experience building production-ready agents on top of GPT-4, LangChain, or similar frameworks, I’d love to review your approach and timeline.
Project ID: 40695609
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370 freelancers are bidding on average $479 USD for this job

⭐⭐⭐⭐⭐ Build Powerful Agents: Sales, Email, and Document Management ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and noticed you're looking for an expert to expand your codebase with new agents. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for agent development. I will ensure that each agent integrates seamlessly into your existing Python stack using LangChain and the OpenAI API. ➡️ Why Me? I can easily create your Sales Assistant, Email Agent, and Document Management Agent as I have 5 years of experience in developing Python applications, focusing on automation and API integration. My expertise includes working with data processing, webhooks, and RESTful services. Additionally, I have a strong grip on frameworks like LangChain and tools for vector storage. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Python Development ✅ LangChain Framework ✅ OpenAI API Integration ✅ RESTful API Creation ✅ Data Processing ✅ Webhook Implementation ✅ Unit Testing ✅ Vector Database Management ✅ Document Retrieval ✅ Sales Analytics ✅ Email Automation ✅ Content Analysis Waiting for your response! Best Regards, Zohaib
$350 USD in 2 days
8.0
8.0

Hi, Your requirement is a strong fit for my experience. I’ve worked on production-oriented Python/LLM systems involving OpenAI, LangChain, RAG pipelines, vector databases, structured extraction, API integrations, and agent-based workflows. I understand that the key requirement here is not just building three standalone AI agents, but extending them cleanly within your existing Python architecture and coding conventions. My approach would be to first review the current codebase and shared patterns, then implement the Sales Assistant, Email Agent, and Document Management Agent as independently deployable services with clear REST interfaces, reusable components, validation, logging, unit tests, and documentation. A few areas I would specifically validate early are the lead/web data sources, email provider and approval workflow, expected sales analytics scope, and how your existing RBAC model should be enforced during document retrieval. These details can materially affect the implementation approach. For document processing, I would use a robust ingestion/RAG pipeline with structured outputs for invoice extraction and permission-aware retrieval rather than relying solely on prompt-level access control. Once I review the repository structure and integration details, I can provide a clear implementation plan with milestones and timeline. Happy to discuss the architecture and share my proposed approach. Best, Jenifer
$555 USD in 30 days
7.8
7.8

Hello, Multi Purpose AI Agent Development {{{ I HAVE CREATED SIMILAR BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your requirements and understand that you need three production-ready AI agents integrated into your existing Python/LangChain/OpenAI/vector-store architecture without disrupting your current coding patterns. I have 11+ years of AI and full-stack development experience and can build the Sales Assistant, Email Agent and Document Management Agent as independent REST services with clean APIs, reusable components and proper access controls. I will implement lead generation and follow-ups, email classification and automated responses, attachment-to-JSON extraction, document ingestion/indexing and conversational RAG with your existing RBAC model. Each agent will include unit tests, error handling, logging and clear documentation so your developers can easily pull, configure and deploy the services from Git. I can work directly with your existing codebase, API keys and sample datasets, first understanding the current architecture and then extending it consistently rather than introducing unnecessary frameworks or patterns. I WILL ALSO PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. I eagerly await your positive response. Thanks, Christina
$450 USD in 7 days
7.0
7.0

Lovable AI Expert | AI Development | Game Development Hi, Thank you for considering this opportunity! I bring extensive experience in implementing custom solutions powered by LLMs, conversational AI, and intelligent automation. Recently I have been working on Lovable AI for developing a gaming platform using it, complete with chat-based agent logic, expressive front-ends, and backend integrations. In other project, implemented a fully automated AI agent system for intelligent meeting creation using ElevenLabs Conversational AI and Gemini (via a custom agent brain). The flow integrates voice interaction, natural language processing, location precision, and frontend. Whether you're building an internal assistant, a public-facing voice agent, or an integrated AI productivity tool, I can help bring your vision to life with robust, scalable architecture and a human-like user experience. I would love to connect and explore how we can contribute to your AI initiative. Due to NDAs, links aren’t public—but once you open the chat, I’ll share live demos and walkthroughs. I deliver high quality work on time. Let us connect over chat to discuss and start the work as per your requirements. Regards Ranjana
$500 USD in 20 days
6.8
6.8

Hello, I have experience building production-ready AI agents using Python, LangChain, OpenAI APIs, vector databases, REST services, and structured backend architectures. I understand your goal is to extend your existing LLM codebase with three independent agents while maintaining your current patterns and infrastructure. I can develop the Sales Assistant Agent with lead ingestion, personalized follow-ups, scheduling support, and pipeline analytics. For the Email Agent, I can implement intelligent classification, template selection, sentiment/intent analysis, and document extraction into structured JSON. The Document Management Agent can handle file ingestion, vector indexing, conversational retrieval, and permission-aware access control. My approach will focus on clean modular services, reusable components, API endpoints, proper error handling, and unit tests. I will integrate with your existing LangChain/OpenAI stack rather than introduce unnecessary changes, ensuring your developers receive a well-documented Git repository that is easy to deploy and maintain. I have worked with AI workflows involving RAG systems, embeddings, vector stores, LLM orchestration, and business automation. I can review your current architecture, propose the implementation plan, and build the agents iteratively with clear milestones.
$250 USD in 1 day
7.1
7.1

Hi there, I understand you want to expand your existing Python LLM stack with three production-ready agents, while keeping the same LangChain, OpenAI, vector-store, webhook, and permission patterns already established in your codebase. I’m confident I can build these as independent, deployable services without introducing unnecessary architectural changes or breaking your existing helpers. My approach is to first review the current architecture, coding patterns, vector-store integration, webhook layer, and permissions model, then implement the Sales Assistant for lead generation, personalized follow-ups, scheduling, and pipeline analytics. Next, I’ll build the Email Agent for response generation, classification, intent/urgency/sentiment analysis, attachment reading, and structured JSON extraction, alongside the Document Management Agent for ingestion, indexing, conversational retrieval, and role-based access. Finally, I’ll expose each agent through a clean REST endpoint, add unit tests, validate API/vector/webhook integrations, and deliver a documented Git repository ready for your developers to deploy. Deliverables will include all three services, tests, integration code, documentation, configuration, and deployment guidance. Can you share the existing repository structure and one representative LLM helper so I can align the three agents precisely with your current coding and deployment patterns? I’m ready to start immediately. Warm Regards, Aneesa.
$250 USD in 2 days
6.5
6.5

Hi there, I am Efanntyo, and I'm thrilled to submit my proposal for the Multi Purpose AI Agent Development project. Your initiative to enhance your existing codebase with robust AI agents aligns perfectly with my expertise in developing intelligent systems using Java, Python, PostgreSQL, and cutting-edge AI frameworks like OpenAI and LangChain. I understand the core scope involves developing a Sales Assistant Agent, Email Agent, and Document Management Agent, each performing distinct, critical functions. My approach will be to leverage your current Python stack to ensure seamless integration, ensuring each agent operates as an independent service with REST endpoints. This modular design will facilitate easy deployment and maintenance. My experience in AI Chatbot Development and AI Agent Swarms has equipped me with the skills necessary to implement lead generation, automated communication, and document management solutions. I am adept at designing systems that can efficiently process and analyze data, providing actionable insights and maintaining high levels of data integrity. I am particularly excited about the opportunity to work with GPT-4 and LangChain, ensuring that the agents are not only functional but also scalable and adaptable to future requirements. I look forward to collaborating closely with your team, sharing insights, and iterating on solutions to meet your business objectives. Best Regards, Efanntyo
$500 USD in 10 days
6.7
6.7

Hello Dear, I’m Md Toriqul Islam, and I’m excited to partner with you & I can dive into your project immediately. I have 10+ years of full-stack development experience. I understand you want three independent AI agents for sales, email automation, and document management, integrated into your existing Python and LangChain architecture. I have rich experience in Python, OpenAI API, LangChain, REST APIs, vector databases, webhooks, document processing, and AI automation. I am skilled in RAG, embeddings, structured JSON extraction, role-based access, prompt engineering, unit testing, and production-ready services. I can follow your existing coding patterns and deliver clean, documented repositories with independent endpoints and tests. Looking forward to discussing your architecture and timeline. Best regards, Md Toriqul Islam
$250 USD in 4 days
6.4
6.4

Hello Sir, I am AI engineer with 7 years of experience.I have previously built Email automation , AI chatbot, sales assistant agent development.I can build as per your requirements. Let’s connect
$350 USD in 2 days
6.5
6.5

HI As a team, we bring extensive expertise in AI and chatbot development to the table, making us ideally suited for your Multi-Purpose AI Agent Development project. Not only are we proficient in Java and Python-the languages crucial to your project but our portfolio showcases experience in creating chatbots and AI-powered automation systems that align perfectly with the scope of the three agents you require. Moreover, our team's solid understanding of backend development – particularly Python, Django, and Node.js will be a great advantage as it integrates well with your existing coding patterns. We're experienced in extracting structured data from written documents as well as using REST APIs, which aligns with your requirement for intelligent document management. Lastly, I understand the significance of quality code and documentation for long-term projects like yours. Thanks....
$500 USD in 7 days
6.8
6.8

Drawing on our extensive experience building autonomous AI agents like the ones you need for your Python stack, we can confidently assure you of a seamless integration and superior performance in all three areas - the Sales Assistant Agent, Email Agent, and Document Management Agent. We have a clear understanding of your business needs; from lead generation to content analysis and structured JSON conversions. With our agentic AI expertise, we will ensure that these agents respect your existing coding patterns and operate within your business's defined logic. Additionally, our proficiency in GPT-4, LangChain, and other similar frameworks makes us an ideal choice to handle this project. We don't just build prototypes; we develop robust production-ready systems that work within established workflows and networks like yours. Precisely why we offer not just the creation but also comprehensive API keys sharing, sample datasets, and subsequent business logic support to facilitate long-term implementation.
$500 USD in 7 days
6.4
6.4

Hi, I'm Denis, a full-stack developer with experience building production LLM systems using LangChain and OpenAI. I understand your need: three independent agents integrated cleanly into your existing Python stack. The real challenge isn't just building separate services—it's ensuring they share your patterns, respect your vector store setup, maintain consistency with your webhook layer, and enforce permissions correctly. You need maintainable agents, not black boxes. I've built similar multi-agent systems where each service operates independently while staying synchronized with shared infrastructure. The key is keeping architecture simple and code patterns consistent. Here's my approach: I'll review your codebase to understand your LangChain patterns, vector store, and webhook layer. Then I'll design each agent as a standalone REST service sharing common utilities for LLM calls, retrieval, and authentication. The Sales Assistant handles lead ingestion and drafting, the Email Agent manages categorization and parsing into structured JSON, and the Document Management Agent layers permissions on retrieval. Each includes unit tests and documentation. One upfront note: retrieval quality depends on chunking and ranking strategy. We can tune this based on your actual documents once we start. The main risk is scope creep around sales analytics—it's easy to expand into a full dashboard. I'd suggest a lean version first, then iterate based on your team's needs. I'm ready to star
$300 USD in 3 days
6.0
6.0

Three agents on one Python stack works best if the shared plumbing comes first: a common LangChain agent base, one webhook layer, and one vector store client, so the Sales, Email and Document agents differ only in tools and prompts. I would start with the Document Management Agent since it forces the indexing and role-based retrieval decisions early, then the Email Agent, where attachment parsing to structured JSON needs schema validation rather than trusting raw model output. Each ships as its own service with a REST endpoint, unit tests and docs. I built Code3Scribe, which generates compliant narratives from emergency incident data, so the structured extraction and audit constraints are familiar. Which vector store are you on now, and does your existing permissions model expose roles through an API the retrieval layer can call at query time?
$740 USD in 25 days
6.1
6.1

Hello, CnEL India can help extend your existing Python-based AI stack with the three required agents: Sales Assistant, Email Agent, and Document Management Agent. Our methodology will begin with reviewing your existing architecture, coding patterns, webhook layer, vector store, and API integrations to ensure the new agents fit seamlessly rather than introducing unnecessary changes. We would develop each agent as an independent, modular service with REST endpoints, while reusing your existing LangChain/OpenAI infrastructure. The implementation will cover lead processing and sales workflows, intelligent email classification and document extraction, and secure document ingestion, indexing and conversational retrieval with your existing permissions model. We will follow an iterative approach: architecture review → agent development → API/integration → unit testing → security and workflow validation → documentation and deployment-ready Git repository. Our team specializes in Python, AI/LLM applications, RAG, automation and AI agent development, making this project closely aligned with our expertise. Please note that our implementation will be entirely in Python; Java development is not included in our scope. We can review your current codebase and define the implementation milestones and timeline accordingly.
$500 USD in 15 days
6.1
6.1

Hi, I can extend your existing Python/LangChain stack with three independently deployable agents while preserving its current patterns, webhook contracts, vector-store conventions, and permissions model. The Sales Assistant will normalise incoming leads, enrich approved sources, generate personalised follow-ups, and expose pipeline metrics. The Email Agent will classify intent, urgency and sentiment, select controlled templates, process attachments, and return schema-validated JSON. The Document Agent will handle ingestion, chunking, metadata, embeddings, retrieval, and permission-aware search. Each service will include REST endpoints, typed models, background-job handling, idempotency, retries, audit logs, tracing, prompt/version management, and unit/integration tests. High-impact actions such as sending or scheduling messages can use approval gates rather than uncontrolled autonomous execution. Three technical questions: 1. Which vector database, email provider, webhook framework, and deployment platform are currently used? 2. Should outbound sales and email actions execute automatically or require human approval? 3. Is document access enforced at user, role, department, or tenant level? Best regards, Houssame
$500 USD in 7 days
6.5
6.5

Hello, I went through your project description and understand you need three production-ready AI agents, Sales Assistant, Email Agent, and Document Management Agent, integrated into your existing Python architecture with LangChain, OpenAI, vector storage, and webhooks. This is what I can help you with, let's chat. My approach is to use advanced techniques in natural language processing and machine learning to develop each agent with seamless integration into your current system. By utilizing GPT-4 and LangChain frameworks, I will ensure that the Sales Assistant excels in lead generation, personalized communication, and sales analytics. The Email Agent will feature automated responses, content analysis, and document parsing capabilities. The Document Management Agent will focus on efficient file ingestion, conversational retrieval, and role-based access control. Each agent will be delivered as an independent service with REST endpoints, unit tests, and comprehensive documentation. As final deliverables, you will receive three fully functional agents that enhance your workflow efficiency and streamline tasks across sales, email management, and document handling. Do you have specific preferences for the tone and style of communication for the Sales Assistant and Email Agent? Within 24-48 hours of award, I will share a project blueprint covering architecture and implementation sequence. Let’s discuss bringing these AI agents to life. Best Regards, Imran
$250 USD in 2 days
5.7
5.7

Hi, I can extend your existing Python/LangChain stack with the three agents while keeping the implementation aligned with your current coding patterns rather than introducing a separate architecture. I’ll build: Sales Assistant Agent for lead processing, follow-up drafting/scheduling and basic pipeline analytics Email Agent for classification, automated response drafting, urgency/intent analysis and attachment-to-JSON extraction Document Management Agent for ingestion, vector indexing, conversational retrieval and existing RBAC enforcement Each agent will be exposed through a clean REST endpoint, integrated with your webhook/vector-store layer, covered with unit tests, and documented for your developers. I’ll first review the current repository and interfaces, then implement the agents incrementally so each service can be tested independently before final integration. Fixed price: $550 Timeline: 7–10 days I’m ready to start as soon as you share the existing codebase, sample data and business rules. Thanks, Yasir
$550 USD in 7 days
6.0
6.0

I’d structure the three REST services around your existing Python/LangChain stack, sharing the OpenAI, webhook, vector-store, and RBAC adapters while keeping Sales, Email, and Document Management independently deployable. Invoice attachments would pass through controlled extraction into validated JSON, and document retrieval would enforce existing permissions before model context is assembled. In 7 days, I’ll deliver the clean Git repository, three endpoints, unit tests, deployment notes, and sample payloads. The core flows will include feed/web lead intake, personalized and scheduled follow-ups, pipeline summaries, configurable email labels plus intent/urgency/sentiment, and permission-aware conversational retrieval. I built an AI outreach system that discovers Google Maps businesses, scrapes contacts, writes personalized emails, and sends them through paced SMTP rotation with unsubscribe handling. Should the existing vector store and permissions model remain fixed interfaces? Muhammad Saad
$495 USD in 7 days
5.4
5.4

Hi, I went through your requirements and this is a great fit. I can extend your existing Python/LangChain/OpenAI stack with the Sales Assistant, Email Agent, and Document Management Agent while keeping your current architecture and coding patterns intact. I’ll make each agent independently deployable with REST endpoints, proper testing, clean documentation, vector/RAG integration, structured document extraction, and your existing RBAC/permissions model. I’d first review the current codebase and then build the agents around what you already have rather than overcomplicating the system. Happy to discuss the architecture and start right away. Fahad
$250 USD in 2 days
5.6
5.6

I can extend your existing Python/LangChain stack with the three independent agents while following your current architecture and coding patterns, including LLM workflows, vector retrieval, document-to-JSON extraction, webhooks, REST endpoints, RBAC, and unit tests. I’ll keep each service clean, deployable, and well documented so your developers can pull the repository and run it without unnecessary rewrites.
$250 USD in 3 days
5.3
5.3

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