4Bell Technology

Job Description

Key Responsibilities
Develop and maintain AI-powered applications using Python and FastAPI
Build and integrate LangChain and LangGraph-based LLM workflows
Work with Vector Databases for embedding storage and similarity search
Assist in developing Retrieval-Augmented Generation (RAG) pipelines
Build reusable backend APIs and AI orchestration workflows
Write clean, testable, and production-ready code
Collaborate with senior engineers on AI solution architecture and implementation
Participate in debugging, code reviews, and engineering best practices
Support integration of AI services into enterprise applications
Contribute to prompt engineering and embedding optimization workflows

Must-Have Skills
1–3 years of software development experience
Strong Python programming skills
Experience with FastAPI / REST API development
Hands-on experience with LangChain and LangGraph
Understanding of LLM workflows and prompt engineering
Practical exposure to Vector Databases and embeddings
Basic understanding of RAG architecture
Familiarity with Git and CI/CD basics
Understanding of software engineering best practices
Strong debugging and problem-solving ability