PEFT), FastGPT), pgvector), Vector databases (Milvus, Enterprise AI platforms (Dify, Model architectures (GPT, GCP Vertex AI), Fine-tuning (LoRA, Cloud AI services (AWS Bedrock, Qwen), snowflake , Hadoop, Spark, Databricks, Prompt engineering, ClickHouse, RAG systems, Azure OpenAI, LLM fundamentals, Embedding models, LLaMA, Pinecone