Entry Level (1–5 years) Mandatory Skills: Python TensorFlow/PyTorch basics Understanding of ML algorithms Preferred Skills: Exposure to data preprocessing tools (Pandas, NumPy) Basic cloud AI services Mid Level (5–12 years) Mandatory Skills: Model development & deployment REST API integration for ML models Preferred Skills: Experience with NLP, deep learning Cloud ML platforms (AWS SageMaker, Azure AI) Expert (12+ years) Mandatory Skills: Designing scalable ML systems Advanced statistical modeling Preferred Skills: Leadership in AI strategy Cutting-edge frameworks (Transformers, LLMs)