protocol buffers , Java, Golang, Tcp, Networking, Kafka, Json, Http, Redis, MySQL, Data Structures And Algorithms, Xml, Python, LangChain, multi-agent frameworks, retrieval-augmented backend architectures, function execution, massive concurrency handling, LangGraph, LLM tool calling, caching mechanisms, distributed systems performance tuning, agentic AI paradigms

Java, Python, Microservices, Distributed System Design, Go, software architecture patterns, large-scale service governance