GenAI Java Full-Stack Engineer for LLM-RAG Apps

Ethereum Technologies; Richardson (TX); On-site; USD 86,000 - 123,000; Full time

Job summary

Ethereum Technologies is seeking a Generative AI Developer with Java to design and deliver LLM-based enterprise solutions, including RAG architectures and autonomous agent workflows, integrated with scalable cloud-native applications.

You will build scalable backend services using Java, Spring Boot, and Microservices, connect to OpenAI/Azure OpenAI, and implement secure, compliant deployments in cloud environments. Collaboration with cross-functional teams is essential.

Qualifications

• Strong proficiency in Java, Spring Boot, Microservices architecture, and React/Angular frameworks
• Hands-on experience in Generative AI, LLMs, and RAG-based solution development
• Expertise in prompt engineering and AI orchestration frameworks (LangChain, LangGraph or equivalent)
• Experience in agentic AI patterns, including multi-agent systems and tool-based integration
• Knowledge of vector databases (Pinecone, FAISS, Azure AI Search) and semantic retrieval techniques
• Experience with cloud platforms (Azure/AWS), containerization (Docker), orchestration (Kubernetes), and CI/CD pipelines
• Familiarity with Microsoft Copilot Studio for building conversational AI agents and enterprise copilots
• Hands-on experience with AI-assisted development tools such as GitHub Copilot, Cursor, and other intelligent code editors/IDEs
• Understanding of enterprise AI governance, security, and compliance standards

Responsibilities

• Design and develop enterprise-grade Generative AI solutions using Large Language Models (LLMs) and enterprise data
• Build and implement RAG-based architecture and agentic / multi-agent workflows for intelligent automation
• Develop scalable backend services using Java, Spring Boot, and Microservices architecture and UI using React/Angular
• Integrate LLM APIs (Azure OpenAI / OpenAI) and vector databases for knowledge retrieval and semantic search
• Ensure secure, scalable, and compliant deployment through cloud-native platforms, containerization, orchestration, and CI/CD pipelines
• Collaboratje with cross-functional teams to deliver AI-enabled, production-grade solutions

Skills

Java

Spring Boot

Microservices

React

Angular

LLMs

RAG

Prompt engineering

AI orchestration

Azure

AWS

Kubernetes

Docker

Pinecone

OpenAI API

Tools

LangChain

LangGraph

GitHub Copilot

Cursor

OpenAI API

Azure OpenAI

Job description

Ethereum Technologies is seeking a Generative AI Developer with Java to design and deliver LLM-based enterprise solutions, including RAG architectures and autonomous agent workflows, integrated with scalable cloud-native applications.

You will build scalable backend services using Java, Spring Boot, and Microservices, connect to OpenAI/Azure OpenAI, and implement secure, compliant deployments in cloud environments. Collaboration with cross-functional teams is essential.