AI Engineer: Agentic AI & RAG Systems

Irow9; Plymouth (MN); Hybrid; USD 120,000 - 180,000; Full time

Job summary

iROW9 Inc. in Plymouth, MN is seeking a hands-on AI Developer to build production-grade Agentic AI and RAG solutions for an enterprise AI platform. You will work on end-to-end RAG pipelines, multi-agent orchestration, and async Python/FastAPI services, with React/Next.js front-end.

Ideal candidates have 4–6 years of software engineering, 2–3 years in LLM/Agentic AI, and strong Python per FastAPI. Experience with LangGraph/LangChain and vector stores is highly valued.

Qualifications

• 4–6 years of hands-on software engineering experience, incl. 2–3 years building LLM/Agentic AI solutions.
• Proven experience shipping production RAG systems with real users and real retrieval-quality challenges.
• Strong, code-level experience with LangGraph, LangChain, AutoGen, Microsoft Agent Framework, Semantic Kernel, CrewAI, or comparable agent frameworks.
• Strong Python development skills with FastAPI, async programming, and API design.
• Experience with RAG, embeddings, vector stores, hybrid search, semantic reranking, grounding, and citations.
• Experience with LLM prompt engineering, structured outputs, evaluation, and quality control.
• Ability to work independently, learn rapidly, adapt to new AI frameworks/models, and deliver production software.
• Working proficiency with React/Next.js and TypeScript.

Responsibilities

• Build and maintain end-to-end production RAG pipelines, including ingestion, parsing, chunking, embeddings, vector/hybrid search, reranking, grounding, and citations.
• Develop multi-agent systems using supervisor/specialist patterns, tool calling, agent state, and agent-to-agent communication.
• Build and govern MCP tool contracts for retrieval and operational data.
• Develop LLM evaluation and quality frameworks, including prompt versioning, regression testing, retrieval/answer evaluation, and hallucination control.
• Design async Python/FastAPI services with OpenAPI-native APIs for AI, agent, and retrieval capabilities.
• Build AI-powered user experiences using React/Next.js and TypeScript.
• Deliver working software through weekly demos and milestone-driven development.
• Build and deploy containerized services using technologies such as PostgreSQL and Redis.

Skills

Python

FastAPI

TypeScript

React/Next.js

Async programming

LLM evaluation

RAG pipelines

agent orchestration

Open API design

OpenAI evaluation frameworks

Tools

LangGraph

LangChain

AutoGen

Microsoft Agent Framework

Semantic Kernel

CrewAI

PostgreSQL

Redis

pgvector

FAISS

Pinecone

Azure AI Search

Job description

iROW9 Inc. in Plymouth, MN is seeking a hands-on AI Developer to build production-grade Agentic AI and RAG solutions for an enterprise AI platform. You will work on end-to-end RAG pipelines, multi-agent orchestration, and async Python/FastAPI services, with React/Next.js front-end.

Ideal candidates have 4–6 years of software engineering, 2–3 years in LLM/Agentic AI, and strong Python per FastAPI. Experience with LangGraph/LangChain and vector stores is highly valued.