Senior Software Back-End Engineer

Strong expertise in Nest.js, PostgreSQL, AWS, Docker, and TypeScript. Track record of shipping features to production regularly in fast-paced environments. Experience with API design and third-party integrations. Previous experience working at a Web3 company or building dApps. Familiarity with smart contract interactions, wallet integrations, or on-chain data indexing.

Ship new game-like mechanics and AI integrations to production. Implement integrations for features touching the blockchain layer (NFT rewards, token distributions, on-chain achievements). Design APIs for wallet connections, handle transaction flows, and sync on-chain events. Identify and fix performance bottlenecks in existing features. Monitor production systems, improve query performance, and optimize API response times. Fix bugs quickly and own features end-to-end from implementation to production monitoring.