You will get AI Agent & RAG Development | LangChain, OpenAI, Custom Chatbots
Project details
Build intelligent AI agents and chatbots powered by LangChain, OpenAI, and Python. I create stable AI systems that answer questions, reason over documents, and integrate seamlessly with your business tools.
I build custom AI chatbot development, RAG applications, and AI agent workflows designed for real-world use cases—not demos. Whether you need a document Q&A system, AI knowledge base, or API driven assistant, I build solutions that are accurate, scalable, and easy to extend.
What I build:
LangChain based AI agents with tool calling
RAG applications using PDFs, websites, and private data
OpenAI API integration (GPT 4 / GPT 4o)
Vector database & semantic search setups
Custom AI chatbots for websites or platforms
API driven AI workflows and automation
Each project is designed with clean architecture, error handling, and future scalability in mind. I focus on business outcomes faster responses, smarter automation, and reliable AI systems you can trust.
Message me to discuss your use case and build an AI solution that actually works in production.
I build custom AI chatbot development, RAG applications, and AI agent workflows designed for real-world use cases—not demos. Whether you need a document Q&A system, AI knowledge base, or API driven assistant, I build solutions that are accurate, scalable, and easy to extend.
What I build:
LangChain based AI agents with tool calling
RAG applications using PDFs, websites, and private data
OpenAI API integration (GPT 4 / GPT 4o)
Vector database & semantic search setups
Custom AI chatbots for websites or platforms
API driven AI workflows and automation
Each project is designed with clean architecture, error handling, and future scalability in mind. I focus on business outcomes faster responses, smarter automation, and reliable AI systems you can trust.
Message me to discuss your use case and build an AI solution that actually works in production.
Programming Languages
HTML & CSS, Python, TypeScriptCoding Expertise
PSD to HTML, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$50
|
Standard
$200
|
Advanced
$400
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 20 days |
Number of Revisions | 3 | Unlimited | Unlimited |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
Frequently asked questions
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OP
Oke P.
Feb 10, 2026
AI Voice Agent Developer Needed (Retell AI & Dialogflow) – Trial Project for Long-Term Role
We were impressed with Martin's work on our test project for voice automation with Vapi. He provided a great overview, was timely, and communication was spot on. We'll definitely continue working with him and recommend him for his responsiveness and expertise. 👍 Best of luck, Martin!
About Martin
AI Automation Engineer | n8n, AI Agent, GHL, Voice AI & CRM Automation
Akure, Nigeria - 1:47 pm local time
Many businesses lose revenue because leads are not contacted quickly enough, follow-ups are inconsistent, CRM records become outdated, appointments are missed, and teams spend hours performing repetitive manual work.
I build automation systems that connect your CRM, communication channels, databases, and business processes into reliable workflows that reduce manual effort and improve operational efficiency.
Whether you need AI-powered lead qualification, automated follow-up, CRM automation, AI Voice Agents, sales automation, or backend workflows, I focus on building systems that help businesses scale without adding complexity.
⭐⭐⭐WHAT I BUILD⭐⭐⭐
• AI Automation Systems
• Workflow Automation
• CRM Automation
• AI Agents
• AI Voice Agents
• AI Receptionists
• Appointment Booking Systems
• Lead Qualification Systems
• Lead Routing Systems
• Follow-Up Automation
• Sales Automation
• Customer Support Automation
• Email-to-CRM Workflows
• AI Document Processing
• API Integrations
• Webhook Automation
⭐⭐⭐REAL ESTATE AUTOMATION⭐⭐⭐
Real Estate businesses often struggle with lead response times, fragmented systems, inconsistent follow-up, and manual administrative work.
I build Real Estate automation systems that help teams respond faster, automate repetitive processes, and improve lead conversion.
▶️Examples include:
• AI Receptionists
• AI Voice Agents
• Automated Appointment Booking
• Lead Routing & Assignment
• Follow Up Boss Automation
• GoHighLevel Automation
• CRM Data Synchronization
• Lead Nurturing Workflows
• Real Estate Lead Management
• Investor Lead Qualification
• Sales Pipeline Automation
• SMS & Email Follow-Up Systems
⭐⭐⭐AI VOICE AGENT & CONVERSATIONAL AI⭐⭐⭐
I build AI Voice Agents that can:
• Answer inbound calls
• Qualify leads
• Book appointments
• Route conversations
• Capture lead information
• Follow up automatically
• Handle customer inquiries
• Update CRM records
Using Vapi, Retell AI, OpenAI, Claude, Twilio, and GoHighLevel, I create conversational AI systems that help businesses respond instantly and operate more efficiently.
⭐⭐⭐CRM & SALES AUTOMATION⭐⭐⭐
I build CRM automation systems that keep records updated, automate lead movement through pipelines, trigger follow-ups, create tasks, and improve visibility across the sales process.
▶️Platforms include:
• GoHighLevel (GHL)
• Follow Up Boss
• Close io
• HubSpot
• Airtable
▶️Common automations include:
• Lead Capture Automation
• Lead Routing
• Lead Qualification
• Automated Follow-Up
• Pipeline Automation
• Appointment Reminders
• Task Automation
• Sales Workflow Automation
• CRM Synchronization
⭐⭐⭐N8N, ZAPIER OR GOHIGHLEVEL WORKFLOW AUTOMATION⭐⭐⭐
I use n8n, Zapier or GoHighLevel to connect business systems, automate workflows, and orchestrate processes across multiple platforms.
▶️Services include:
• n8n Workflow Automation
• n8n AI Automation
• n8n AI Agents
• n8n CRM Automation
• n8n API Integrations
• n8n Webhook Automation
• Zapier Automation
• Workflow Design
• Workflow Optimization
• REST API Integration
• JSON-Based Workflows
• Data Synchronization
⭐⭐⭐TOOLS & PLATFORMS I WORK WITH⭐⭐⭐
n8n, GoHighLevel, GHL, Zapier, Follow Up Boss, Vapi, Retell AI, ElevenLabs, OpenAI, Claude, APIs, Webhooks, JSON.
⭐⭐⭐INDUSTRIES⭐⭐⭐
• Real Estate
• Property Management
• Mortgage & Lending
• Construction
• Home Services
• Healthcare
• Professional Services
⭐⭐⭐WHAT YOU CAN EXPECT⭐⭐⭐
• Faster Lead Response Times
• Reduced Manual Work
• Better CRM Organization
• Improved Follow-Up Consistency
• Increased Appointment Booking
• Automated Lead Management
• Streamlined Customer Communication
• Scalable Automation Systems
▶️P.S: If you're looking for an AI Automation Engineer to build n8n workflows, GoHighLevel automation, Zapier automations, AI Voice Agents, CRM automation, lead management systems, appointment booking workflows, or sales automation systems, I can help you design and implement automation that supports growth while reducing operational complexity.
▶️KEY TERMS
n8n | GoHighLevel Automation | Zapier | AI Automation | Workflow Automation | CRM Automation | AI Agents | AI Voice Agents | AI Receptionist | Vapi | Retell AI | Follow Up Boss | Lead Management | Lead Qualification | Appointment Booking | Sales Automation | API Integration | Webhooks | JSON | Real Estate Automation | n8n expert | GHL Workflow | Twilio | n8n workflow | Zapier workflow
▶️MESSAGE ME TO START BUILDING YOUR AUTOMATED WORKFLOW!!!
Steps for completing your project
After purchasing the project, send requirements so Martin can start the project.
Delivery time starts when Martin receives requirements from you.
Martin works on your project following the steps below.
Revisions may occur after the delivery date.
Use Case & Agent Planning
I review your chatbot goal, use case, and expected behavior to design the AI logic, conversation flow, and agent structure.
Knowledge & RAG Setup
I connect your documents, website, or data source and build a RAG pipeline using LangChain or embeddings for accurate responses.