tokenization , Mern Stack, Typescript, Javascript, Docker, Db Design, embeddings, AI orchestration frameworks, K8S, async pipelines, chunking strategies, vector databases, prompting trade-offs, CI CD, inference economics, RAG pipelines, quantization, AI SDK, LangChain, fine-tuning, infra-as-code, Caching, scalable backend systems, queues, attention, retrieval evals, LlamaIndex