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# Overview We are building an AI-powered chatbot platform for a mortgage lending business. The chatbot will serve as an intelligent customer support and lead engagement tool — embedded on the website, connected to the business's CRM and loan systems, and accessible across SMS and email channels. We need an experienced developer to build and deploy this end-to-end. This is a project-based engagement with a project manager overseeing requirements and coordination. Clear communication and the ability to work independently between check-ins is important. --- ## Existing Stack (must integrate with) - Brevo — CRM. Borrower contact data, pipeline stages, and loan status all live here. The chatbot must read from and write to Brevo via its REST API. - POS (Point of Sale) system — where borrowers fill out mortgage applications. Data flows from POS → Brevo. - LOS (Loan Origination System) — tracks active loans and processing status. Data flows from LOS → Brevo. The POS/LOS → Brevo data pipeline is already set up by another contractor. Your job is to connect the AI layer to Brevo — you will not need to touch the POS or LOS directly. --- ## What Needs to Be Built ### 1. AI Chatbot Engine The core brain behind everything. Must: - Integrate with at least one major LLM provider (OpenAI, Anthropic, or similar) - Be designed so the underlying model can be swapped without rebuilding everything (e.g. switching from GPT to Claude should not require a rewrite) - Maintain conversation context across messages - Be grounded in a company knowledge base (RAG system using existing knowledge base — details provided at kickoff) - Use borrower data pulled from Brevo as real-time context so it can answer questions about a specific user's loan or application status ### 2. Website Chat Widget - Embeddable widget that can be dropped into any website via a script tag - Persistent session handling — conversations must not reset on page refresh or tab switch (a previous implementation had this bug) - Connects to the chatbot backend in real time ### 3. Omnichannel Support (SMS & Email) - When a borrower texts or emails the business, the same AI engine continues the conversation - The bot must have access to the same borrower context (from Brevo) and the same conversation history regardless of channel - The system must correctly link an SMS or email message to the right borrower contact in Brevo ### 4. Live Form-Fill Assist - While a borrower is actively filling out the mortgage application form on the website, the chat widget can access the partial form state - The bot uses this live context to answer mid-form questions (e.g. "what does this field mean", "do I need this document") - Requires coordination with the website/form implementation to ensure field-level data is accessible to the widget ### 5. Admin Dashboard & Human-in-the-Loop - An internal dashboard for the business owner/admin to view active and recent conversations in near real-time - Ability to toggle any conversation from AI to human — the admin can take over and type directly to the borrower through whichever channel they're on (web, SMS, or email) - Ability to hand the conversation back to the AI after the human is done - Does not need to be real-time WebSocket level; near-real-time (polling-based) is acceptable --- ## What We Are NOT Looking For - Anyone to build or redesign the marketing website — that is handled separately - Backend infrastructure setup or DevOps — that is managed by the project manager --- ## Ideal Candidate - Has built AI chatbot or LLM-powered applications before, ideally in a customer support or lead qualification context - Comfortable working with third-party REST APIs (Brevo's API is well-documented) - Experience with multi-channel messaging (SMS via Twilio or similar, email inbound/outbound handling) - Can build embeddable JS widgets that work across different website stacks - Able to write clean, maintainable code — this system will need to be handed over and supported after delivery Please include in your application: examples of chatbot or LLM-integrated projects you've shipped, your approach to the multi-channel identity problem (linking a web session, an SMS number, and an email address to one borrower), and your estimated timeline for this scope.
Project ID: 40539965
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Hi — Elias here from Miami. I see you’re building an AI-powered chatbot for mortgage lending. It’s a great initiative, but I understand the challenges that can arise with integrating AI effectively, especially in a finance-focused environment. Common issues often include ensuring the chatbot can handle complex queries accurately and maintaining compliance with industry regulations. These can lead to misunderstandings or user frustration if not addressed early. My approach would start with a clear understanding of your specific requirements and the most common questions your clients have. From there, I can develop a chatbot that not only responds accurately but also learns from interactions to improve over time. I believe in iterative testing to refine its performance. To get things moving, could you share what specific features you envision for the chatbot? Also, what systems do you currently have in place that the chatbot would need to integrate with? Looking forward to your thoughts.
$300 USD in 4 days
8.0
8.0

⭐⭐⭐⭐⭐ Create an AI Chatbot for Mortgage Lending Customer Support ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and noticed you're looking for an experienced developer to build an AI-powered chatbot for your mortgage lending business. Look no further; Zohaib is here to assist you! My team has successfully completed 50+ similar projects for chatbot development. I will connect the chatbot to your CRM, ensuring it reads and writes data seamlessly while providing efficient support across multiple channels. ➡️ Why Me? I can easily create your AI chatbot as I have 5 years of experience in developing AI applications, specializing in customer support and lead engagement. My expertise includes REST API integration, multi-channel messaging, and maintaining conversation context. I also have a strong grip on JavaScript, ensuring clean and maintainable code for your project. ➡️ Let's have a quick chat to discuss your project in detail ➡️ Skills & Experience: ✅ AI Chatbot Development ✅ REST API Integration ✅ JavaScript Development ✅ Multi-Channel Messaging ✅ Customer Support Solutions ✅ Real-Time Data Handling ✅ Widget Design & Implementation ✅ Conversational Context Management ✅ Dashboard Development ✅ User Experience Design ✅ SMS & Email Integration ✅ Clean Code Practices Waiting for your response! Best Regards, Zohaib
$275 USD in 2 days
8.0
8.0

Hi, I've built mortgage AI chatbots with LLM integration before. You need a chatbot that handles lending inquiries through API calls — we can wire that with Python backend and JavaScript frontend in your budget. Message me to discuss the architecture. Best Regards, Hasan
$250 USD in 21 days
7.5
7.5

Hello Greetings, After reviewing your project description, I feel confident and excited to work on this project for you. But I have some crucial things and queries to clear out. Please leave a message on chat so we can discuss this, and I can share my recent work similar to your requirements. Thanks for your time! I look forward to hearing from you soon. Best Regards.
$350 USD in 4 days
7.5
7.5

Hi I can build the AI chatbot platform as an end-to-end system that connects the website chat, SMS, email, Brevo CRM data, and admin handoff workflow into one shared conversation engine. I have experience with LLM applications using OpenAI/Anthropic, RAG pipelines, vector databases, REST API integrations, Twilio-style messaging, inbound email handling, embeddable JavaScript widgets, and full-stack dashboard development. The key technical challenge here is not only generating AI replies, but correctly grounding every response in borrower-specific Brevo data, knowledge-base content, and unified conversation history across multiple channels. I would solve this with a model-agnostic AI service layer, structured borrower identity matching, persistent session storage, CRM sync logic, and a RAG pipeline designed to prevent generic or incorrect loan-status answers. For the website widget, I would build a lightweight script-tag embed with persistent sessions so conversations continue across refreshes, tabs, and later visits. For SMS and email, I would map phone numbers, email addresses, and web sessions back to Brevo contacts so the same borrower context follows the user across channels. The admin dashboard would allow the team to monitor conversations, pause AI responses, take over manually, and return control to the bot when needed. Thanks, Hercules
$300 USD in 7 days
7.2
7.2

Having spent more than a decade creating specialized python web automations, data mining, and extraction, I am confident that I possess the necessary skills and experience for your Mortgage AI Chatbot Automation project. One of the key aspects of this project is identifying and integrating with the right LLM provider. My expertise in AI development and strong familiarity with API integrations mean I can ensure a smooth connection to platforms like OpenAI or Anthropic. Moreover, given my substantial prior experience using CRM systems - most recently on the Brevo - I'll be able to quickly adapt to the tools needed for this project. I have a proven track record in developing multi-channel messaging systems, including SMS handling via Twilio or similar services as well as email inbound/outbound systems. I understand the need for consistent conversation context regardless of channel shift, which will be paramount in making your Mortgage AI Chatbot not just functional but user-friendly. Finally, the admin dashboard and Human-in-the-Loop aspect is another area where my versatile skill set can shine through. Delivering near real-time visibility while allowing effortless switching between AI and human interaction is within my skill capacity. Assembled with the ability to write clean, maintainable code the longevity of this system is ensured, essential for a project undergoing extension with other contractors' work already completed.
$250 USD in 1 day
7.2
7.2

Hello, I have carefully reviewed your requirements and understand that you need an AI-powered mortgage chatbot integrated with Brevo, capable of supporting website chat, SMS, and email conversations while maintaining borrower context and conversation history across all channels. I have 10+ years of experience in AI application development, chatbot systems, API integrations, CRM platforms, and customer engagement solutions. I have worked on LLM-powered applications, RAG-based knowledge systems, multi-channel messaging platforms, and business process automation. For borrower identity management, I would use Brevo as the single source of truth, linking web sessions, email addresses, and phone numbers to a unified contact record. This ensures the AI has consistent access to borrower data and conversation history regardless of the communication channel. I can build the chatbot engine, embeddable website widget, SMS/email integrations, live form assistance, and admin dashboard with human handoff functionality while keeping the architecture modular and model-agnostic for future AI provider changes. I am comfortable working independently alongside your project manager and would be excited to discuss the technical requirements, architecture, and implementation timeline in more detail. Thank you. Christina
$300 USD in 7 days
7.0
7.0

Hello, I have experience building AI-powered applications, REST API integrations, data pipelines, and scalable backend systems. I can build a modular chatbot platform that integrates with Brevo, supports OpenAI or Anthropic, uses RAG for knowledge-based responses, and maintains conversation history across web, SMS, and email. For identity management, I would use the Brevo contact as the single source of truth, linking web sessions, phone numbers, and email addresses to the same borrower so conversations remain consistent across channels. The solution would also include an embeddable chat widget, live form assistance, and an admin dashboard with AI-to-human handoff. Based on the scope, I estimate 6–8 weeks for development, integration, testing, and deployment. I'm available remotely and would be happy to discuss the architecture in more detail.
$300 USD in 7 days
7.0
7.0

AI Chatbot Developer at Your Service ------------->> Ready to Build Your Mortgage AI Platform. I have experience building LLM-powered chatbot applications, REST API integrations, embeddable chat widgets, and multi-channel messaging solutions. I can deliver a scalable AI chatbot integrated with Brevo, persistent conversations, SMS/email support, RAG, and an admin dashboard with clean, maintainable code. Please ping me to get started and deliver outstanding results. Thanks.
$450 USD in 7 days
6.9
6.9

Hello, I trust you're doing well. I am well experienced in machine learning algorithms, with nearly a decade of hands-on practice. My expertise lies in developing various artificial intelligence algorithms, including the one you require, using Matlab, Python, and similar tools. I hold a doctorate from Tohoku University and have a number of publications in the same subject. My portfolio, which showcases my past work, is available for your review. Your project piqued my interest, and I would be delighted to be part of it. Let's connect to discuss in detail. Warm regards. please check my portfolio link: https://www.freelancer.com/u/sajjadtaghvaeifr
$500 USD in 7 days
6.7
6.7

Hello, I have thoroughly reviewed the project requirements for the Mortgage AI Chatbot Automation project and understand the need for an AI-powered chatbot platform integrated with Brevo CRM, POS, and LOS systems. Let's chat and discuss it further. To handle your project, I will start with integrating the AI Chatbot Engine with a major LLM provider, ensuring seamless conversation context maintenance and real-time borrower data utilization from Brevo. Next, I will develop an embeddable Website Chat Widget with persistent session handling and omnichannel support for SMS and Email, along with live form-fill assistance and an Admin Dashboard with human-in-the-loop functionality. The clear deliverables of the project include a fully functional AI chatbot platform connected to Brevo CRM and other systems, along with a user-friendly admin dashboard for managing conversations efficiently. Before signing-off my bid, I would like to ask a question, i.e., how do you envision the scalability of the chatbot platform as the business grows? Best Regards, Aneesa.
$250 USD in 1 day
6.3
6.3

Hello, I'm excited about the opportunity to work on your AI-powered chatbot for the mortgage lending business. It sounds like you're looking for a comprehensive solution that integrates seamlessly with Brevo, allowing for real-time customer support and engagement across multiple channels. My approach would involve developing a robust AI chatbot engine that maintains conversation context and connects effectively with your existing systems, ensuring borrowers receive accurate and timely responses based on their data. With 7+ years of experience in building AI chatbot applications, I understand the importance of clean API integration and maintaining user context across various messaging platforms. I have tackled multi-channel identity issues before, and I can ensure that borrower interactions are consistently linked across web, SMS, and email. Could you share more about the specific types of queries the chatbot should be able to handle regarding loan applications? Best regards, Ivan Mandinski
$300 USD in 2 days
6.3
6.3

Hi, I've built AI-powered chatbot platforms with LLM integration, CRM connectivity, RAG knowledge bases, and multi-channel messaging, making me a strong fit for this project. I can develop a scalable chatbot that integrates seamlessly with Brevo, maintains conversation context across web, SMS, and email, and includes an embeddable widget with a human handoff dashboard. I'd be happy to discuss the architecture, identity linking strategy, and provide a realistic timeline after reviewing your detailed requirements.
$250 USD in 2 days
6.2
6.2

I’d build this as one AI conversation layer, not three separate bots for web, SMS, and email. Brevo would be the main source of truth. The backend would pull borrower/contact context from Brevo, keep conversation history in one place, and use a model adapter so OpenAI, Anthropic, or another LLM can be swapped later without rewriting the app. The RAG layer would ground answers in your approved knowledge base, while borrower-specific loan/status questions would use Brevo data only. For identity, I’d use a cautious matching flow: web session ID first, then verified email/phone when available, and Brevo contact matching for SMS/email. If there are multiple possible matches, the system should ask for confirmation or flag it for a human instead of guessing. The widget would persist sessions across refreshes and tabs. The admin dashboard would show recent conversations, channel, borrower match, AI/human status, and let staff take over or hand back to AI. For this scope, I’d estimate 6-10 weeks depending on the form-assist details and SMS/email provider setup. Questions: 1. Are Twilio or another SMS provider already chosen? 2. Does Brevo already store both phone and email for most borrowers? 3. Should loan-status answers require borrower verification first? Regards, Houssame
$300 USD in 7 days
6.6
6.6

The mortgage side of this is where most chatbot builds get tricky, since loan questions need accurate, compliant answers and not just plausible-sounding ones. That usually means grounding the bot in your actual rate sheets and policy docs rather than letting it improvise. Retrieval over your own data, with clear fallbacks when it isn't confident. I've built systems handling 150+ external service integrations, so wiring the chatbot into your CRM, rate APIs, or lead capture flow is the kind of work I do regularly. For the conversation layer I'd lean on a clean API setup, likely Node or Python, with the prompt logic and knowledge base kept separate so you can update answers without touching code. I'd also want logging in place from day one so you can see what people are asking and where the bot gets stuck. That feedback loop is what makes it actually useful over time. Is this a fresh build, or are you connecting it to an existing platform and data source?
$250 USD in 7 days
5.7
5.7

Hello, I see a big risk in this build, keeping one borrower's conversation coherent across web refresh, SMS, and email while also grounding answers in live Brevo loan status. The "previous implementation had this bug" note is exactly the kind of state/persistence issue that usually gets underestimated. First I'd tackle the core architecture: a model-agnostic chatbot service with a single conversation store, plus a borrower identity resolver that maps web sessions, SMS sender, and email address to the right Brevo contact. Then I'd build the RAG layer and retrieval flow so every turn can pull borrower-specific context from Brevo and combine it with your knowledge base, without rewriting logic when swapping LLM providers. After that, I'd implement the embeddable JS widget with durable session tokens and reconnect logic to prevent resets, then wire SMS/email webhooks so they feed the same conversation thread and keep history consistent. Finally, I'd add the admin dashboard with AI to human handoff using polling for near-real-time updates, and the "live form-fill assist" integration by consuming field-level state exposed by the website. Please share examples of chatbot/LLM projects you shipped plus your timeline, and do you already have a preferred persistence approach for sessions (DB vs cache + DB) for the web widget?
$456 USD in 28 days
5.8
5.8

Hi there, Building an AI-powered chatbot for a mortgage lending business comes with unique challenges, especially regarding seamless integration with existing systems like CRMs and maintaining consistent customer context across multiple channels. Without proper integration, there's a risk of data discrepancies and disjointed customer experiences. Leveraging my expertise in AI chatbot development and API integration, I will ensure smooth communication between the AI layer and Brevo, providing real-time borrower data access across web, SMS, and email channels. Here are my questions: Could you clarify the preferred LLM provider for this project? Also, what are the expected metrics or KPIs for evaluating the chatbot's performance? Let’s discuss your project now!
$350 USD in 7 days
5.9
5.9

Hello dear, I’m Md. Toriqul Islam, an experienced full-stack and AI application developer with 10+ years of expertise in building scalable chatbot platforms, API integrations, and intelligent web solutions. I understand you need an AI-powered mortgage chatbot integrated with Brevo, supporting RAG, multi-channel conversations (web, SMS, email), persistent sessions, live form assistance, and an admin dashboard with human handoff. I’ve developed LLM-integrated applications, REST API solutions, and real-time customer engagement systems with clean, maintainable architecture. I have rich experience in OpenAI, Node.js, React, Python, REST APIs, Twilio, RAG, JavaScript, and CRM integrations. I’m ready to start immediately and would be happy to discuss your project. Looking forward to hearing from you. Best regards, Md. Toriqul Islam
$250 USD in 6 days
5.8
5.8

Hello! We can build an AI chatbot solution for your mortgage workflow and integrate it with Brevo. 1. Which part should we cover first: web widget, CRM sync, or omnichannel messaging? 2. Do you already have the knowledge base and channel integrations ready? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$300 USD in 7 days
6.3
6.3

Hello Sir/Mam I am excited to offer my expertise in Data Analysis , Data processing to assist . With a robust background in making case studies and projects, proficiency in R, spreadsheet tools, and Tableau, Power BI , SQL , Excel , SPSS Statistics , Data Entry . I am well-prepared to support you in your Project . My ability to deliver exceptional results on time and with utmost quality . I believe that my skill set makes me the ideal candidate for this project Please come on chat we will discuss more about this I will be waiting for your reply . Thank you !
$25,100 USD in 2 days
5.8
5.8

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