Backend Engineer

Passionate about building scalable blockchain infrastructure, the full-time remote Middle/Senior Backend Engineer will develop backend systems for NFT marketplaces, smart wallets, and blockchain-based gaming infrastructure using Go and various database technologies. Key responsibilities Develop backend services using Go for Ethereum interactions and RPC integration Integrate with ZK Stack infrastructure and maintain wallet backend indexing for real-time token balance tracking Design and implement APIs for NFT marketplace services, including on-chain order matching and settlement flows Required qualifications 2+ years of commercial experience with Go Strong understanding of MongoDB and PostgreSQL Experience with Redis for caching and session management Knowledge of message queues such as NATS or RabbitMQ Experience designing and implementing REST APIs with OpenAPI/Swagger