Blockchain Engineer

Hiring, Blockchain Engineer, Pittsburgh, PA (Onsite), Long-term contract.  Required Skills • Strong experience with blockchain smart contract development: Solidity (Ethereum/ EVM, Layer-2s); Rust (Solana programs). • Hands-on experience with blockchain interaction: Event listeners, indexers, RPC integrations, Transaction monitoring, and reconciliation. • Experience building backend services using Java and Spring Boot (preferred). • Solid understanding of token standards, wallet interactions, and signing flows. • Familiarity with public and private blockchain environments. • Experience working with microservices, CI/CD, and Git-based workflows.