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A fully functional HTTP/1.1 proxy server written from scratch in C++. Implements zero-copy I/O using sendfile(), handles concurrent connections via epoll, and supports both forward and reverse proxy modes. Built as a deep-dive into how network proxies actually work at the socket level — no libraries, just raw sockets and system calls.

RAG pipeline built for biomedical navigation services. Ingests domain-specific documents, chunks and embeds them into a vector store, and retrieves relevant context at query time before passing to an LLM. Designed for accuracy over speed — the domain doesn't tolerate hallucination.

A distributed key-value cache implementing consistent hashing for node distribution, gossip protocol for cluster membership, and eventual consistency via vector clocks. Built to understand the practical tradeoffs of CAP theorem — not just the theory.

Layer 7 load balancer with pluggable routing algorithms — round-robin, least-connections, and IP hash. Parses HTTP headers to make routing decisions, tracks backend health via active probes, and removes unhealthy nodes automatically. Written in C++ with an emphasis on low latency.