Backend Engineer — Blockchain Indexing & Marketplace

Job Title: Backend Engineer — Blockchain Indexing & Marketplace Job Location: San Francisco, CA, USA Job Location Type: Remote Job Contract Type: Full-time Job Seniority Level: Mid-Senior level About NodeMeta NodeMeta is a Web3 ecosystem built on BNB Smart Chain, developing decentralized products including an NFT marketplace, staking ecosystem, and blockchain-powered commerce platforms. About the Role NodeMeta is looking for a Backend Engineer to join our fully remote Web3 team and take ownership of the backend, indexing, and API layer across our growing ecosystem. You’ll work on both existing blockchain infrastructure and new products being built from the ground up. The role has a strong focus on blockchain indexing, API development, data consistency, performance, and production-ready backend systems. Key responsibilities: Design and develop backend services using Node.js and Express. Build and maintain blockchain indexers for NFT, staking, marketplace, and payment events. Process real-time and historical blockchain data reliably. Build REST APIs for NFT browsing, search, filtering, listings, bids, and transactions. Design PostgreSQL schemas for marketplace, transaction, user, and blockchain data. Implement Redis caching and optimize database and API performance. Handle blockchain reorganizations, duplicate events, and on-chain/off-chain data consistency. Build backend services for SmartCommerce orders, payments, settlement, and fulfillment. Integrate IPFS/Arweave metada