Middle/Senior Backend Engineer

📋 Description Develop backend services using Go with ethkit and go-ethereum for Ethereum interactions and RPC Integrate with ZK Stack infrastructure: work with EraVM, system contracts, and L1↔L2 messaging Build and maintain wallet backend indexing integrations for real-time token balance tracking and Design and implement APIs for NFT marketplace and orderbook services, including on-chain order Implement smart contract interaction layer using abigen-generated Go bindings for ERC-20/721/1155 Build Account Abstraction (ERC-4337) backend support: UserOperation submission and monitoring 🎯 Requirements 2+ years of commercial experience with Go Strong understanding of MongoDB and PostgreSQL (query optimization, indexing) Experience with Redis for caching and session management Knowledge of message queues (NATS, RabbitMQ, or similar) Experience designing and implementing REST APIs with OpenAPI/Swagger Understanding of microservices architecture patterns 🎁 Benefits Comprehensive Benefits Program including medical, dental, and vision PTO Personalized career roadmap Training and educational opportunities