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 210,000+ Businesses with WhatsApp Engagement & Marketing
- 800 Crores + 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
- Quick 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

📌 Artificial Intelligence Engineer (Gurugram)
🏢 AiSensy
📍 Gurugram