Fullstack Developer with AI/ML and GenAI

Job Summary

We are seeking a talented and experienced Senior Fullstack Engineer to join our Conversational AI (CXD) team. In this role, you will be responsible for designing, developing, and maintaining robust and scalable AI-powered web applications with a strong focus on frontend development (60-70%) while maintaining solid backend capabilities. You will work closely with product managers, designers, and other engineers to build next-generation AI experiences including chat interfaces, LLM integrations, and intelligent user interactions. The ideal candidate will have deep JavaScript expertise, strong React ecosystem knowledge, experience with AI/LLM technologies, and a passion for building high-quality, maintainable solutions that effectively integrate cutting-edge AI capabilities.

Responsibilities

• AI Application Development: Build AI-powered chat applications, conversational interfaces, and intelligent user experiences
• Multi-Agent Systems: Design and implement complex AI workflows using, for example, LangGraph and multi-agentic architectures
• LLM Observability: Implement monitoring, logging, and performance tracking for AI/LLM integrations
• Frontend Development: Design, develop, and maintain responsive web applications using React, Next.js, and TypeScript with deep JavaScript expertise
• System Architecture: Make strategic technical decisions about AI application structure, data flow patterns, and scalability solutions
• Performance Engineering: Optimize Core Web Vitals, bundle analysis, rendering performance, and AI response times for complex applications
• API Integration: Develop and consume RESTful APIs, GraphQL services, and LLM APIs with proper error handling and state management
• Technical Leadership: Conduct code reviews, mentor junior developers, and establish frontend development standards
• Business Translation: Work with stakeholders to translate business requirements into technical solutions and feasibility assessments
• Test Automation: Develop comprehensive automated unit, integration, and end-to-end tests
• Production Support: Debug complex production issues, memory leaks, race conditions, and cross-browser inconsistencies
• Security Implementation: Implement authentication flows, XSS prevention, data privacy and AI safety measures
• Backend Development: Build and maintain Node.js/Express.js APIs, database integrations, and AI service orchestration

Requirements

Experience & Education

• Bachelor's degree in Computer Science, Engineering, or related field
• 5-8 years of experience in fullstack development with frontend focus
• Proven experience 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