Happiest Minds Technologies - Java Full Stack Developer - React.js/Spring Boot

Senior Java Full Stack Developer Java, Spring Boot, Microservices, React, Python & AI Job Summary : We are looking for a highly motivated Java Full Stack Developer with strong expertise in Java, Spring Boot, Microservices, React.js, Python, and Artificial Intelligence (AI/Generative AI) to design, develop, and deliver next-generation digital solutions. The ideal candidate should possess strong full-stack development experience, expertise in building scalable cloud-native applications, and hands-on experience integrating AI/ML technologies, Large Language Models (LLMs), and intelligent automation capabilities into enterprise applications. The role requires collaboration with cross-functional teams to develop secure, high-performing, and business-critical solutions. Key Responsibilities : - Design, develop, test, and maintain enterprise-grade applications using Java and Spring technologies. - Develop scalable backend services and APIs using Spring Boot and Microservices architecture. - Build responsive, reusable, and high-performance user interfaces using React.js. - Develop and consume RESTful APIs and event-driven services. - Implement reusable components and shared services across projects. - Participate in complete SDLC activities including design, coding, testing, deployment, and support. Backend Development (Java/Spring) : - Develop applications using Java 8/11/17/21. - Design and implement Spring Boot-based microservices. - Develop REST APIs and integration services. - Implement security using Spring Security, OAuth2, JWT, and SSO. - Work with Hibernate, JPA, and ORM frameworks. - Develop asynchronous services using Kafka, RabbitMQ, and messaging frameworks. - Optimize high-volume transaction processing systems. Front-End Development (React) : - Build modern web applications using React.js. - Develop reusable UI components and frontend frameworks. - Implement responsive designs and ensure browser compatibility. - Integrate React applications with backend APIs. - Manage application state using Redux, Context API, or similar libraries. - Improve user experience through performance optimization techniques. Python Development : - Develop backend services and automation solutions using Python. - Build AI/ML integration services and data-processing pipelines. - Design APIs and microservices using Flask or FastAPI. - Create utilities for workflow automation, data transformation, and reporting. - Work with Python libraries for AI, machine learning, and analytics. - Collaborate with Data Engineering and AI teams for model deployment. AI / Generative AI Development : - Design and build AI-powered applications and intelligent solutions. - Integrate OpenAI, Azure OpenAI, Claude, Gemini, and other LLMs. - Develop AI-powered chatbots, virtual assistants, and copilots. - Implement Retrieval-Augmented Generation (RAG) solutions. - Build semantic search and intelligent document processing solutions. - Develop AI Agent-based workflows and decision-making systems. - Create prompt engineering frameworks and optimize prompts for business use cases. - Integrate vector databases and embedding models. - Monitor AI model performance and response quality.