Java Fullstack

Programmers.io; Sunnyvale (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Programmers.io in Sunnyvale, CA, seeks an experienced Java/Spring backend engineer to design enterprise-grade apps using Java, Spring Boot, microservices, and React. You will build RESTful APIs and integrate AI/ML platforms.

Work on AI-powered solutions with LLMs, RAG, LangChain, and Spring AI; implement vector DBs, CI/CD, cloud deployments, and ensure scalability, security and observability while following Agile and DevSecOps practices.

Qualifications

• Experience designing enterprise-grade applications using Java, Spring Boot, microservices.
• Experience building RESTful APIs and integrating with AI/ML platforms.
• Experience with AI/LLM integrations and RAG architectures.
• Experience with CI/CD and cloud deployments.
• Familiarity with Agile and DevSecOps practices.

Responsibilities

• Design and develop enterprise-grade applications using Java, Spring Boot, Microservices, and React.
• Build RESTful APIs and integrate backend services with AI/ML platforms.
• Develop AI-powered solutions using Large Language Models (LLMs).
• Implement Retrieval-Augmented Generation architectures using vector databases.
• Create AI Agents and workflow orchestration using LangChain, LangGraph, Spring AI, or similar frameworks.
• Integrate OpenAI, Claude, Gemini, or other foundation model services.
• Collaborate with business stakeholders to convert AI use cases into production-ready solutions.
• Build and maintain CI/CD pipelines and cloud-native deployments.
• Ensure application scalability, security, performance, and observability.
• Follow Agile and DevSecOps best practices.

Skills

Java 8/11/17+

Spring Boot

Spring MVC

Spring Security

Spring Data JPA

Hibernate

Microservices

REST API Development

React JS

JavaScript ES6+

TypeScript

HTML5

CSS3

Bootstrap/Material UI

Prompt Engineering

Large Language Models

Retrieval-Augmented Generation

LangChain/LangGraph

Spring AI

Vector Databases

AI Agents

Model Evaluation

PostgreSQL

MySQL

MongoDB

Redis

AWS

Azure

GCP

Docker

Kubernetes

GitHub Actions/Jenkins

Terraform

Tools

PostgreSQL

MySQL

MongoDB

Redis

Docker

Kubernetes

GitHub Actions

Jenkins

Terraform

Job description

Key Responsibilities

Design and develop enterprise-grade applications using Java, Spring Boot, Microservices, and React.

• Build RESTful APIs and integrate backend services with AI/ML platforms.
• Develop AI-powered solutions using Large Language Models (LLMs).
• Implement Retrieval-Augmented Generation (RAG) architectures using vector databases.
• Create AI Agents and workflow orchestration using LangChain, LangGraph, Spring AI, or similar frameworks.
• Integrate OpenAI, Claude, Gemini, or other foundation model services.
• Collaborate with business stakeholders to convert AI use cases into production-ready solutions.
• Build and maintain CI/CD pipelines and cloud-native deployments.
• Ensure application scalability, security, performance, and observability.
• Follow Agile and DevSecOps best practices.

Mandatory Technical Skills Backend Development

Java 8/11/17+

• Spring Boot
• Spring MVC
• Spring Security
• Spring Data JPA
• Hibernate
• Microservices Architecture
• REST API Development

Frontend Development

React JS

• JavaScript (ES6+)
• TypeScript
• HTML5
• CSS3
• Bootstrap / Material UI

Generative AI

Prompt Engineering

• Large Language Models (GPT, Gemini, Claude, Llama)
• Retrieval-Augmented Generation (RAG)
• LangChain / LangGraph
• Spring AI
• Vector Databases (Pinecone, ChromaDB, Weaviate, FAISS)
• AI Agents and Agentic Workflows
• Model Evaluation and Guardrails

Database

PostgreSQL / MySQL

• MongoDB
• Redis

Cloud & DevOps

AWS / Azure / GCP

• Docker
• Kubernetes
• GitHub Actions / Jenkins
• Terraform (Good to Have)