AI Engineer – Conversational AI

Company: RapidBrains
Apply for the AI Engineer – Conversational AI
Location: Maharashtra
Job Description:

Job Title: AI Engineer – Conversational AI

Experience: 4+ years

Work Mode: Onsite -Mumbai / Pune / Chennai

Employment Type: Contract

Notice Period: Immediate or within 2 weeks

We are looking for an experienced AI Engineer to build a next-generation AI-powered conversational platform featuring chatbots integrated with avatar-based interactions and real-time lip-syncing. This role involves designing LLM-driven conversational systems, integrating speech and avatar technologies, and developing scalable AI pipelines for real-time user interaction.

The ideal candidate should have strong expertise in Generative AI, NLP, and AI model integration, along with hands-on experience in building real-time conversational systems.

Responsibilities

Conversational AI Development

  • Design and develop LLM-powered chatbot systems
  • Implement conversational workflows including prompt orchestration, context handling, and response generation
  • Integrate chatbots with APIs, knowledge bases, and external data sources

Avatar & Speech Integration

  • Integrate AI systems with avatar engines for real-time lip-syncing and facial animation
  • Work with Speech-to-Text (STT) and Text-to-Speech (TTS) technologies
  • Ensure synchronization between responses, speech output, and avatar movements

AI Model Integration

  • Integrate LLMs such as OpenAI, Azure OpenAI, Claude, or open-source models
  • Build and optimize RAG (Retrieval-Augmented Generation) pipelines
  • Apply prompt engineering, fine-tuning, and response optimization techniques

AI Platform Development

  • Develop backend AI services and APIs for chatbot and avatar workflows
  • Optimize models for latency, scalability, and reliability
  • Build pipelines for real-time and streaming AI interactions

Collaboration

  • Work closely with frontend, backend, and product teams
  • Participate in architecture design, code reviews, and sprint planning

Required Skills

Core AI Skills

  • 5+ years of experience in Python
  • Strong expertise in NLP, Generative AI, and conversational AI
  • Hands-on experience with LLM APIs (OpenAI, Azure OpenAI, Anthropic, etc.)
  • Experience with prompt engineering and orchestration frameworks

Conversational AI

  • Experience building chatbots or virtual assistants
  • Hands-on experience with RAG pipelines and vector databases
  • Familiarity with LangChain, LlamaIndex, or similar frameworks

Speech & Avatar Technologies

  • Experience with STT and TTS systems
  • Exposure to avatar/lip-sync technologies
  • Familiarity with tools like D-ID, Synthesia, or Unreal MetaHuman is a plus

Backend & Integration

  • Experience with FastAPI or Flask
  • Strong understanding of REST APIs and event-driven systems
  • Experience with vector databases (Pinecone, Weaviate, FAISS, etc.)

Cloud & Infrastructure

  • Experience with AWS, Azure, or GCP
  • Hands-on experience with Docker and containerized deployments
  • Familiarity with CI/CD and production AI systems

Preferred Skills

  • Experience with real-time AI streaming systems
  • Knowledge of multimodal AI (text, voice, video)
  • Familiarity with WebRTC or real-time communication systems
  • Understanding of AI safety, guardrails, and prompt governance
  • Experience optimizing latency for interactive AI applications

Education

  • Bachelor’s or Master’s degree in Computer Science, AI, Data Science, or related field

What We’re Looking For

  • Strong problem-solving and system design skills
  • Experience building production-grade AI applications
  • Ability to collaborate with cross-functional teams
  • Passion for cutting-edge conversational AI and digital human technologies

Posted: March 25th, 2026