We are seeking an Applied AI Engineer to build, evaluate, and deploy production AI applications using large language models, AI agents, and Retrieval-Augmented Generation (RAG). The role requires robust software engineering skills and hands-on experience translating business requirements into reliable AI workflows. You will collaborate with product and engineering teams to deliver measurable business outcomes.
• ResponsibilitiesDesign and implement AI agent workflows using LangGraph, including nodes, edges, conditional routing, and state management.
• Build RAG pipelines covering ingestion, chunking, embeddings, vector indexing, hybrid search, reranking, and answer generation.
• Implement input validation, intent detection, query classification, query rewriting, history-aware retrieval, and semantic caching.
• Integrate LLMs with APIs, databases, tools, and enterprise data sources.
• Manage conversation history, agent memory, persisted state, and recovery from interrupted workflows.
• Create evaluation datasets and measure retrieval quality, answer quality, and agent task completion.




• Use Langfuse or equivalent tools to trace LLM calls, monitor latency and token costs, and investigate failures.
• Diagnose production issues such as incorrect retrieval, hallucinations, tool failures, and state inconsistencies.
• Handle API rate limits, timeouts, and transient failures through appropriate retries, backoff, concurrency controls, and fallbacks.
• Collaborate with product and engineering teams to deliver measurable business outcomes.
• RequirementsProficiency in Python or TypeScript/JavaScript.
• Experience building backend services, REST APIs, and asynchronous workflows.
• Practical knowledge of testing, debugging, logging, Git, and deployment.
• Ability to explain implementation choices and tradeoffs in previously delivered projects.
• Hands-on experience building agent workflows with LangGraph.
• Understanding of graph state, nodes, edges, conditional routing, and wor

📌 Applied AI Engineer (Chennai)
🏢 9th Direction Technology Solutions
📍 Chennai