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Sr Full stack Java Developer

  • On-site
    • Allentown, Pennsylvania, United States
    • Denver, Colorado, United States
    • San Jose, California, United States
    • Albany, New York, United States
    • Alpharetta, Georgia, United States
    • Austin, Texas, United States
    +5 more
  • $60 - $65 per hour
  • Information Technology

Job Highlights

Hands-on expertise in Generative AI, LLM integration, RAG, prompt engineering, embeddings, vector databases, and AI-powered automation.

Job description

AI Full Stack Java Developer

  • Designed and developed scalable AI-powered full-stack applications using Java, Spring Boot, React/Angular, REST APIs, and cloud-native technologies.

  • Integrated Generative AI and Large Language Models (LLMs) into enterprise applications to deliver intelligent search, content generation, recommendation, summarization, and conversational capabilities.

  • Built AI-enabled backend services using Java, Spring Boot, Spring AI, LangChain/LangGraph concepts, and RESTful APIs, ensuring secure and maintainable application architecture.

  • Developed Retrieval-Augmented Generation (RAG) solutions by integrating LLMs with enterprise documents, knowledge bases, vector databases, and semantic search.

  • Implemented prompt engineering, prompt templates, response validation, context management, and AI guardrails to improve accuracy, consistency, and reliability of AI-generated responses.

  • Developed responsive and reusable frontend components using React/Angular, TypeScript, JavaScript, HTML5, and CSS3, integrating them with AI-enabled backend services.

  • Designed microservices using Spring Boot, Spring Cloud, API Gateway, and service-to-service communication for highly scalable distributed applications.

  • Developed and consumed REST and event-driven APIs, integrating third-party AI platforms, enterprise systems, databases, and external services.

  • Worked with OpenAI/Azure OpenAI or equivalent LLM platforms, embedding models, vector search, and AI APIs into production applications.

  • Implemented vector-based knowledge retrieval using technologies such as Pinecone, Azure AI Search, Elasticsearch, or PostgreSQL with pgvector.

  • Designed data persistence solutions using PostgreSQL, MySQL, MongoDB, and Redis, selecting appropriate storage mechanisms based on application requirements.

  • Applied Spring Security, OAuth 2.0, JWT, RBAC, and API security practices to protect enterprise and AI-powered applications.

  • Implemented asynchronous and event-driven processing using Kafka, RabbitMQ, or cloud messaging services for high-volume workloads.

  • Containerized applications using Docker and deployed microservices to Kubernetes and cloud platforms such as AWS, Azure, or GCP.

  • Developed CI/CD pipelines using Jenkins, Maven, Git, GitHub/GitLab, and automated deployment workflows.

  • Implemented automated unit, integration, API, and end-to-end testing using JUnit, Mockito, REST Assured, Selenium, Playwright, or Cypress.

  • Added observability through logging, metrics, distributed tracing, health checks, and application monitoring, helping identify performance and AI-service issues.

  • Optimized application performance through caching, database tuning, API optimization, asynchronous processing, and efficient LLM/API utilization.

  • Collaborated with product managers, architects, data scientists, QA engineers, and DevOps teams to transform business requirements into production-ready AI solutions.

Job requirements

Requirements

  • 5+ years of professional software development experience with strong expertise in Java and Spring Boot.

  • Strong hands-on experience building full-stack applications using Java, Spring Boot, REST APIs, React or Angular, JavaScript, and TypeScript.

  • Experience designing and developing microservices-based, scalable, and cloud-native applications.

  • Practical experience integrating Generative AI, Large Language Models (LLMs), and AI APIs into enterprise applications.

  • Strong understanding of RAG architecture, embeddings, vector databases, semantic search, prompt engineering, and LLM orchestration.

  • Experience working with OpenAI, Azure OpenAI, AWS Bedrock, Google Vertex AI, or similar AI platforms.

  • Knowledge of Spring AI, LangChain/LangGraph, or comparable AI application frameworks is highly desirable.

  • Experience developing and consuming RESTful APIs, JSON-based services, and third-party integrations.

  • Strong database experience with PostgreSQL, MySQL, MongoDB, Redis, or similar technologies.

  • Experience with Kafka, RabbitMQ, or other event-driven messaging platforms.

  • Hands-on experience with Docker, Kubernetes, CI/CD, Jenkins, Maven, Git, and cloud deployment.

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