StarkNet Cairo STARK

StarkNet is an Ethereum Layer 2 blockchain using STARKs (Scalable Transparent ARguments of Knowledge)—a cryptographic proof system—to scale transactions and enable privacy. Cairo is StarkNet's smart contract language, specialized for writing code that generates zero-knowledge proofs. STARKs are quantum-resistant and transparent (no trusted setup), making them ideal for trustless, privacy-preserving systems. Developers use Cairo/StarkNet to build high-throughput DeFi protocols, privacy-preserving applications, and computational integrity layers for Ethereum. StarkNet is one of the most innovative blockchain platforms, backed by Starkware (Israeli startup, $8B+ valuation). The ecosystem is small but growing; demand for Cairo developers far exceeds supply, commanding premium salaries ($160-230k USD senior). Understanding zero-knowledge proofs and Cairo opens doors to cutting-edge blockchain roles, privacy-tech startups, and research. It's a differentiated skill—not everyone learning Ethereum learns Cairo.