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I will build ai agents and langchain powered applications
Pradeep J
About this gig
I will build AI-powered applications, chatbots, AI agents, and intelligent automation using OpenAI, LangChain, Node.js, NestJS, TypeScript, Python, React, and Next.js.
With 7+ years of software engineering experience, I can help you integrate AI into an existing product or build a complete AI solution from scratch.
I can help with:
- OpenAI API integration
- AI chatbots and assistants
- LangChain applications
- RAG systems with document or knowledge-base retrieval
- AI agents and workflow automation
- Custom REST APIs and backend development
- Authentication and user management
- PostgreSQL, MongoDB, Redis, and vector database integrations
- React / Next.js AI interfaces
- SaaS and dashboard development
- Third-party API integrations
- Docker, AWS, and GCP deployment
- AI features for FinTech, SaaS, internal tools, and business applications
I focus on clean architecture, secure APIs, scalable backend systems, and production-ready implementations.
Please message me before ordering so I can understand your requirements and recommend the right package.
Get to know Pradeep J
Pradeep J
Senior Backend and Full Stack Developer NodeJS NestJS AI
- FromIndia
- Member sinceJun 2021
- Avg. response time3 hours
- Last delivery2 years
Languages
Hindi, English
Hi! I'm Pradeep, a Senior Software Engineer with 6+ years of experience building secure, scalable backend systems and full-stack web applications. I specialise in NestJS, Node.js, TypeScript, PostgreSQL, React, AWS, GCP, and AI integrations using OpenAI and LangChain. I help startups and businesses build REST APIs, SaaS platforms, AI-powered applications, FinTech solutions, and third-party integrations with clean, maintainable code. I value clear communication, reliable delivery, and long-term client relationships. Let's build something great together!
My Portfolio
FAQ
Can you integrate OpenAI into my existing application?
Yes. I can integrate OpenAI APIs into existing Node.js, NestJS, React, Next.js, Python, or other API-based applications.
Can you build a custom AI chatbot?
Yes. I can build AI chatbots with custom prompts, conversation history, authentication, APIs, databases, and knowledge-base integration.
Do you build RAG applications?
Yes. I can build Retrieval-Augmented Generation systems that allow an AI assistant to answer questions using your documents, database, or business knowledge.
Can you build AI agents?
Yes. I can develop AI agents that interact with APIs, databases, tools, and business workflows using OpenAI and LangChain.
Can you build both frontend and backend?
Yes. I can build complete applications using React or Next.js for the frontend and Node.js, NestJS, Express.js, or Python for the backend.
Do you provide source code?
Yes. Source code can be included based on the selected package.
Can you deploy the application?
Yes. I can help deploy applications using AWS, GCP, Docker, and CI/CD pipelines.
Do you provide AI model fine-tuning?
My main focus is AI application development, prompt engineering, RAG, agents, and API integrations. Fine-tuning can be discussed separately depending on the model and requirements.
What do you need before starting?
Please share your project requirements, desired AI functionality, existing technology stack, API/documentation access, and expected user flow.
Will I need my own OpenAI API key?
For production projects, it is recommended that you use your own OpenAI account and API key so you maintain control over usage and billing.
