Artificial Intelligence Engineer

About AiSensy AiSensy is a WhatsApp based Marketing & Engagement platform helping businesses like Adani, Delhi Transport Corporation, Yakult, Godrej, Aditya Birla Hindalco., Wipro, Asian Paints, India Today Group Skullcandy, Vivo, Physicswallah, Cosco grow their revenues via WhatsApp. - Enabling 150,000+ Businesses with WhatsApp Engagement & Marketing - 800Crores + WhatsApp Messages done between Businesses and Users via AiSensy per year - Working with top brands like Delhi Transport Corporation, Vivo, Physicswallah & more - High Impact as Businesses drive 25-80% Revenues using AiSensy Platform - Mission-Driven and Growth Stage Startup backed by Marsshot.Vc, Bluelotus.Vc & 50+ Angel Investors About the Role We are seeking a highly skilled and innovative AI/ML Engineer to join our dynamic team. In this role, you will design, develop, and deploy cutting-edge artificial intelligence (AI) solutions, leveraging advanced machine learning (ML) techniques and AI frameworks to address complex business challenges. You will work closely with cross-functional teams to build intelligent systems and drive innovation, with a focus on implementing and optimizing modern AI technologies such as Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and AI Agents. What You’ll Do - Build and maintain high-performance AI microservices using Python and FastAPI. - Develop and optimize Retrieval-Augmented Generation (RAG) systems for production-scale use cases. - Integrate AI features using Google Generative AI SDK and OpenAI SDK. - Work with vector databases to enable semantic search, embeddings retrieval, and real-time AI workflows. - Design and manage scalable data pipelines leveraging MongoDB for storing, indexing, and querying AI-related data. - Write clean, reusable, and maintainable code with strong focus on performance, latency, and reliability. - Collaborate with product managers, backend engineers, and AI teams to deliver impactful AI-driven features. - Participate in design and code reviews to uphold a high-quality engineering culture. What We’re Looking For - Strong proficiency in Python and backend development. - Hands-on experience with FastAPI/Flask for building scalable APIs. - Solid understanding of RAG, embeddings, chunking strategies, and retrieval pipelines. - Experience integrating with Google Gen AI SDK and OpenAI SDK. - Fundamental understanding of how Transformers, CNNs, KNN, and other ML algorithms work - Familiarity with Vector Databases such as Pinecone, QDrant. - Experience with MongoDB for structured/unstructured data handling. - Knowledge of AI evaluation, hallucination control, and prompt optimization. - Understanding of API security, authentication, and data privacy principles. Soft Skills - Strong problem-solving and experimentation abilities - Effective communication and collaboration with cross-functional teams - Ownership mindset — you care about product quality, reliability, and accuracy - Fast learner who thrives in a fast-paced, high-growth startup environment Bonus / Good to Have: - Experience with LangChain, LlamaIndex, or similar LLM frameworks - Familiarity with multimodal models and fine-tuning workflows - Exposure to vector search optimization and hybrid retrieval methods - Understanding of distributed systems, caching, and LLM latency optimization - Basic understanding of CI/CD pipelines, Docker, or AWS for model deployment - Experience with Node.Js for auxiliary services or integrations - Knowledge of Redis or other caching layers for optimizing retrieval and AI response latency