Fullstack Engineer with AI/ML Rakuten India

5.0 - 9.0 years

0 Lacs

karnataka

On-site

You are a talented and experienced Senior Fullstack Engineer responsible for designing, developing, and maintaining robust and scalable AI-powered web applications with a strong focus on frontend development (60-70%) while also ensuring solid backend capabilities. You will collaborate closely with product managers, designers, and other engineers to create next-generation AI experiences like chat interfaces, LLM integrations, and intelligent user interactions. Your deep JavaScript expertise, strong React ecosystem knowledge, experience with AI/LLM technologies, and passion for building high-quality, maintainable solutions with cutting-edge AI capabilities are essential for this role. In this position, your responsibilities will include: - Building AI-powered chat applications, conversational interfaces, and intelligent user experiences - Designing and implementing complex AI workflows using technologies like LangGraph and multi-agentic architectures - Implementing monitoring, logging, and performance tracking for AI/LLM integrations - Designing, developing, and maintaining responsive web applications using React, Next.js, and TypeScript - Making strategic technical decisions about AI application structure, data flow patterns, and scalability solutions - Optimizing Core Web Vitals, bundle analysis, rendering performance, and AI response times - Developing and consuming RESTful APIs, GraphQL services, and LLM APIs with proper error handling and state management - Conducting code reviews, mentoring junior developers, and establishing frontend development standards - Translating business requirements into technical solutions and feasibility assessments - Developing comprehensive automated unit, integration, and end-to-end tests - Debugging complex production issues, memory leaks, race conditions, and cross-browser inconsistencies - Implementing authentication flows, XSS prevention, data privacy, and AI safety measures - Building and maintaining Node.js/Express.js APIs, database integrations, and AI service orchestration Requirements: - Bachelor's degree in Computer Science, Engineering, or related field - 5-8 years of experience in fullstack development with a frontend focus - Proven experience in building chat applications and conversational interfaces - Experience integrating with AI/ML APIs and LLM frameworks - Strong analytical, problem-solving, and technical communication skills - Excellent collaboration abilities and experience working in cross-functional teams Core Technical Expertise: Frontend Technologies: - Advanced JavaScript (ES6+, closures, prototypes, async patterns, event loop, browser APIs) - React.js with hooks, context, and modern patterns - Next.js including SSR, SSG, and App Router - TypeScript with deep understanding of type system - Component libraries (Ant Design or Material-UI) - State management solutions (Redux, React Query) Backend & Data: - Node.js & Express.js for API development - Database technologies (PostgreSQL, MongoDB, or MySQL) - RESTful APIs and GraphQL services AI/LLM Integration: - OpenAI APIs, LangChain, or similar frameworks - Streaming AI responses and error handling - Performance optimization for AI applications - Multi-agent system implementation Development Practices & Tools: - Modern testing frameworks (Jest, React Testing Library, Cypress) - Performance monitoring and debugging tools - Git version control and collaborative workflows - CI/CD pipelines and deployment automation - System architecture patterns and scalable application design - Security best practices including authentication flows and XSS prevention Performance & Optimization: - Core Web Vitals optimization - Bundle analysis and rendering performance - Memory management and browser-specific optimizations - Cross-browser compatibility and debugging Other Mandatory Requirements: - Experience in a product company, focusing on enterprise products with significant business impact or user base - Expertise in Python or JavaScript (Frontend or Backend) - Candidates must be based in Bangalore,

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