You will get LangChain AI app with OpenAI, DeepSeek, or Llama3 integration
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Project details
Looking to build a custom AI application powered by LangChain? 🚀
I’ll develop a high-performing LangChain-based app tailored to your needs — whether it’s a chatbot, knowledge base, or automation workflow. With 7+ years of full-stack experience and hands-on expertise in AI/LLM ecosystems, I specialize in integrating OpenAI, DeepSeek, and Llama3 with vector databases (Pinecone, Weaviate, ChromaDB) for fast, accurate, and scalable solutions.
✅ What I Deliver:
LangChain-powered workflows for chatbots, RAG, and Q&A
API integration with OpenAI, DeepSeek, and Llama3
Vector DB setup for embeddings (Pinecone, Weaviate, ChromaDB)
Context + memory handling for smarter responses
REST/GraphQL APIs for app integration
Deployment on Docker, AWS, or GCP
💡 From prototypes to production-ready apps, I’ll help you launch scalable AI-powered solutions that deliver real results.
I’ll develop a high-performing LangChain-based app tailored to your needs — whether it’s a chatbot, knowledge base, or automation workflow. With 7+ years of full-stack experience and hands-on expertise in AI/LLM ecosystems, I specialize in integrating OpenAI, DeepSeek, and Llama3 with vector databases (Pinecone, Weaviate, ChromaDB) for fast, accurate, and scalable solutions.
✅ What I Deliver:
LangChain-powered workflows for chatbots, RAG, and Q&A
API integration with OpenAI, DeepSeek, and Llama3
Vector DB setup for embeddings (Pinecone, Weaviate, ChromaDB)
Context + memory handling for smarter responses
REST/GraphQL APIs for app integration
Deployment on Docker, AWS, or GCP
💡 From prototypes to production-ready apps, I’ll help you launch scalable AI-powered solutions that deliver real results.
AI Development Type
Deep Learning, Knowledge Representation, Model Tuning, Recommendation System, Software MaintenanceAI Tools
Azure Machine LearningWhat's included
| Service Tiers |
Starter
$550
|
Standard
$1,180
|
Advanced
$2,500
|
|---|---|---|---|
| Delivery Time | 12 days | 22 days | 33 days |
Number of Revisions | 2 | 5 | 8 |
AI Model Integration | |||
Detailed Code Comments | |||
Knowledge Graph | - | - | |
Model Documentation | - | ||
Ontology | - | - | |
Source Code | |||
Taxonomy | - | - |
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JI
Javed I.
Nov 19, 2025
Fix n8n Workflow Issue - API/Data Mapping Expertise Needed
Quick, professional, and exactly what I needed! Fixed my n8n workflow issues with API and data mapping in no time. Communicated clearly and made sure everything was tested and running smoothly. Highly recommended for automation tasks!
AT
Angela T.
Nov 5, 2025
AI Prompt Engineer – LLM & Video Generation Expert
SF
Saman F.
Jan 24, 2024
Full stack developer needed
Abdul did a great job. He took his time to analyze the project requirement, conduct background research and come up with a solution. The implementation was also smooth, and communication was excellent with daily update calls. I highly endorse him for tackling any intricate development challenges
IA
Iulian A.
Nov 7, 2022
Turn existing app to SaaS
Really comprehensive with the application's requirements and proactive in providing solutions.
CC
Cater C.
Feb 10, 2022
Expert Full stack developer required for urgent help on Laravel AWS
Wahhab did an outstanding job. I am far beyond satisfied with the work that he completed. He worked hard and super-efficient. I recommend anybody that wants a serious freelancer with a lot of expertise contact Wahhab.
About Abdul
Senior Full Stack Developer | Web App | React, Node.js | AI Automation
100%
Job Success
Rawalpindi, Pakistan - 3:56 am local time
Web Applications | SaaS Platforms | AI Chatbots | n8n | Zapier | API Integrations
I help startups, SaaS founders, ecommerce brands, and growing businesses build scalable Full-Stack web applications, SaaS platforms, and AI automation systems.
With 8+ years of experience as a Full Stack Developer, I build solutions that reduce manual work, automate operations, and scale efficiently using modern technologies like Node.js, React.js, Python, FastAPI, Next.js, AWS, and Azure, along with automation tools like n8n and Zapier.
🟢 𝗖𝗹𝗶𝗰𝗸 𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯 𝗮𝗻𝗱 𝗴𝗲𝘁 𝗮 𝗳𝗿𝗲𝗲 𝟯𝟬-𝗺𝗶𝗻 𝘀𝘁𝗿𝗮𝘁𝗲𝗴𝘆 call with actionable insights, architecture suggestions, and cost breakdown.
I specialize in building high-performance MVPs, Full-Stack web applications, AI-powered SaaS products, and automation systems for workflows, email, CRM, and integrations. I deliver production-ready systems that combine modern frontend frameworks, scalable backend architecture, and practical AI integrations.
💻 𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗘𝗥 | Node.js | React | MERN Stack
🔹 Backend Development: Node.js, Express.js, Nest.js, Python, FastAPI, Django, REST APIs, GraphQL, Microservices, SQL (MySQL, PostgreSQL)
🔹 Frontend Development: React.js, Next.js, TypeScript, Tailwind CSS, Responsive UI
🔹 Architecture: SaaS Development, API Integrations, Scalable Systems
🤖 𝗔𝗜 & 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗜𝗢𝗡
🔹 OpenAI, LLM APIs, AI Agents, RAG Systems, AI Chatbots, AI Voice Assistants
🔹 n8n, Zapier, Workflow Automation, API Automation, CRM & Email Automation
I build AI-powered automation systems that streamline business processes, integrate tools, and eliminate repetitive tasks.
𝗞𝗲𝘆 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗮𝗯𝗹𝗲𝘀:
• AI Chatbots & Assistants (Web, WhatsApp, Voice)
• End-to-End Automation Workflows (n8n, Zapier)
• API Integrations & Data Sync Systems
• AI Search & RAG-based Knowledge Systems
• CRM, Email & SaaS Automation Pipelines
• Scalable AI Backends (FastAPI / Node.js)
⚡ 𝗥𝗔𝗣𝗜𝗗 𝗠𝗩𝗣 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧
Using modern AI-assisted development tools, I quickly build and launch MVPs, SaaS platforms, and web applications with speed and reliability.
🔹Vibe Coding Tools: Lovable, Bolt.new, Claude ai, Codex, Cursor, Replit, AI-assisted development tools
☁️ 𝗖𝗟𝗢𝗨𝗗 & 𝗗𝗘𝗩𝗢𝗣𝗦
AWS, Azure, Google Cloud, CI/CD, Docker, scalable deployments, backend infrastructure, and automation systems.
🧰 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞
React.js | Next.js | Node.js | Express.js | Nest.js | TypeScript | JavaScript | Python | PHP/Laravel | MERN Stack | Full-Stack Web Applications | SaaS Architecture
MongoDB | PostgreSQL | MySQL | Redis | Prisma | REST APIs | GraphQL | Microservices | WebSockets | Socket io
FastAPI | Django | Stripe API | Firebase | Supabase
AI Integration | OpenAI API | LLM Systems | RAG | AI Agents | AI Chatbots | AI Voice Assistants
n8n | Zapier | Workflow Automation | API Automation
AWS | Azure | Google Cloud | CI/CD | Docker | Git | GitHub
Tailwind CSS | HTML5 | CSS3 | Responsive UI | React Native
Claude ai | Cursor | Replit | Bolt.new | Lovable | Codex
Steps for completing your project
After purchasing the project, send requirements so Abdul can start the project.
Delivery time starts when Abdul receives requirements from you.
Abdul works on your project following the steps below.
Revisions may occur after the delivery date.
Gather, design, build, integrate, test, deploy & support LLM apps