GenAI Engineer: RAG, LLMs & Vector DBs

Ethereum Technologies LLC; Phoenix (AZ); On-site; USD 120,000 - 210,000; Full time

Job summary

Ethereum Technologies in Phoenix, AZ is seeking a senior AI Engineer to design and deploy scalable GenAI solutions using RAG architectures and leading LLMs. You will build end-to-end data ingestion, embedding, indexing, and retrieval pipelines, and optimize prompts to maximize model performance.

Collaborating with cross-functional teams, you will integrate vector databases, ensure security and governance, and deploy GenAI applications across cloud platforms with robust monitoring and cost

Qualifications

• Experience with Generative AI and RAG frameworks.
• Proficient in Python programming.
• Hands-on with LangChain, LlamaIndex, or similar orchestration tools.
• Experience with LLMs and foundation models.
• Strong prompt engineering and model evaluation skills.
• Familiarity with vector databases and embeddings.
• Knowledge of REST APIs, microservices, and cloud platforms.
• Experience with Docker, Kubernetes, CI/CD and DevOps.

Responsibilities

• Design and implement scalable Generative AI solutions using RAG architectures.
• Develop AI-powered applications leveraging LLMs such as GPT, Claude, Llama, and Gemini.
• Build end-to-end data ingestion, embedding, indexing, retrieval, and response-generation pipelines.
• Develop and optimize prompt engineering strategies for improved model performance.
• Integrate vector databases and semantic search capabilities into AI applications.
• Collaborate with cross-functional teams to translate business requirements into AI-driven solutions.
• Monitor, evaluate, and improve model accuracy, relevance, latency, and cost efficiency.
• Implement security, governance, and Responsible AI best practices.
• Deploy and maintain GenAI solutions in cloud environments.

Skills

Generative AI

RAG Frameworks

Python

LLMs / foundation models

Prompt Engineering

Embeddings

Semantic Search

REST APIs

Microservices

Cloud Platforms

Docker

Kubernetes

CI/CD

DevOps

LangChain

LlamaIndex

Vector Databases

Tools

LangChain

LlamaIndex

Pinecone

ChromaDB

Weaviate

FAISS

Azure AI Search

Job description

Ethereum Technologies in Phoenix, AZ is seeking a senior AI Engineer to design and deploy scalable GenAI solutions using RAG architectures and leading LLMs. You will build end-to-end data ingestion, embedding, indexing, and retrieval pipelines, and optimize prompts to maximize model performance.

Collaborating with cross-functional teams, you will integrate vector databases, ensure security and governance, and deploy GenAI applications across cloud platforms with robust monitoring and cost