Niraj Kumar

About Niraj Kumar

Hey there! I’m a Machine Learning Engineer who worked at C-DAC Bangalore, focusing on AI, ML, and NLP during my time there. I enjoy solving real-world problems that deliver meaningful impact and value to others, leveraging technology to create practical and effective solutions.Here’s what I’m really good at- Playing around with AI/ML, deep learning, NLP, and transformers- Cybersecurity stuff—think adversarial attacks, building defenses, and making AI tougher- Cooking up RAG-based chatbots with LLMs, embeddings, and FAISS- Backend magic with Node.js, Express, and MongoDB- Web scraping and automation, including numerous n8n workflows. Some cool things I’ve worked on- An AI cybersecurity model that sniffs out adversarial attacks- A RAG chatbot that chews through 200MB+ PDFs like it’s nothing- A LinkedIn scraping setup using Selenium, n8n workflows, and Supabase- A real-time voice cloning system powered by OpenAI Whisper and Coqui TTS. I’m all about solving real-world AI puzzles, making systems fast and efficient, and building stuff that scales. I’m always up for learning something new, teaming up, or brainstorming fresh ideas.Let’s brainstorm, build, and disrupt the AI, cybersecurity, or ML space together—drop me a line!

Experience

1. Co-founder

   Smallgroup

   Feb 2025 — Present · Gurugram, IN

Education

• National Institute of Technology, Kurukshetra, Haryana

  B.tech

  2019 — 2023