AI/ML Developer

About the Role

We are looking for a passionate AI Developer with 5+ years of overall experience, including a minimum of 2 years of hands-on experience in Generave AI and Large Language Model (LLM)

applicaon development and at least 1 year of experience in Agen¢c AI.

The ideal candidate should possess robust exper¢se in Python/TypeScript, RESTful APIs, and LLM orchestra¢on frameworks such as Lang Chain and LlamaIndex. Experience in prompt engineering,

vector databases, and cloud AI pla¢orms, with a strong founda¢on in NLP and scalable microservices architecture.

Key Responsibili¢es

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Design, develop, and deploy Genera¢ve AI and LLM-powered applica¢ons.

Develop scalable backend services using Python and FastAPI.

Build and integrate RESTful APIs and microservices for AI applica¢ons.

Strong prociency in TypeScript or Python for AI-driven backend development.

Develop AI solu¢ons using LLM orchestra¢on frameworks such as LangChain, LlamaIndex,

or similar frameworks.

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Design and op¢mize prompts using advanced prompt engineering techniques, including

Zero-shot, Few-shot, Chain-of-Thought (CoT), and Func¢on Calling.

Build Retrieval-Augmented Genera¢on (RAG) solu¢ons using vector databases such as

Pinecone, ChromaDB, FAISS, or Weaviate.

Integrate AI applica¢ons with cloud AI pla¢orms, including AWS Bedrock, SageMaker,

Azure OpenAI, or Google Vertex AI.

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Apply NLP concepts, embeddings, and transformer models to solve business problems.

Collaborate with cross-func¢onal teams to deliver scalable,



produc¢on-ready AI solu¢ons.

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Follow so¢ware engineering best prac¢ces, including version control (Git), CI/CD pipelines, and technical documenta¢on.

Mandatory Technical Skills

Candidates must have hands-on experience in the following:

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Python

Genera¢ve AI (GenAI)

Large Language Models (LLMs)

Prompt Engineering

FastAPI

Agen¢c AI

Note: Candidates must have applied the above technologies in real-¢me produc¢on projects and should be able to demonstrate their implementa¢on experience, architecture, use cases, and business outcomes during the interview.

Preferred Technical Skills

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TypeScript (Good to Have)

LangChain

LlamaIndex

REST API Development

GraphQL

Microservices Architecture

Vector Databases (Pinecone, ChromaDB, FAISS, Weaviate)

AWS Bedrock / Amazon SageMaker

Azure OpenAI

Google Vertex AI

NLP, Embeddings, and Transformer Models

Git and CI/CD

Preferred Qualica¢ons

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Bachelor's or master's degree in computer science, Ar¢cial Intelligence, Data Science, or a related discipline.

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5+ years of overall experience, including a minimum of 2 years of hands-on experience in

Genera¢ve AI and Large Language Model (LLM) applica¢on development and at least 1

year of experience in Agen¢c AI.

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Strong analy¢cal, debugging, and problem-solving skills.

Excellent communica¢on and collabora¢on skills.

Ability to manage project work independently.

Passion for AI innova¢on, con¢nuous learning, and emerging technologies.

📌 Ai Ml Engineer (Chennai)
🏢 Lexicon Infotech
📍 Chennai