Backend Developer for Web3 Application(Node.js / TypeScript)

About Us EasyBlock Innovations is a blockchain development company building enterprise-grade Web3 solutions for startups and businesses worldwide. Our team develops scalable backend systems that power decentralized applications, digital asset platforms, crypto wallets, DeFi protocols, NFT marketplaces, and enterprise blockchain solutions. We are looking for an experienced Backend Developer to build secure, high-performance APIs and backend services that integrate with blockchain networks and modern cloud infrastructure. Responsibilities Design, develop, and maintain scalable backend services and REST/GraphQL APIs. Build secure authentication and authorization systems (JWT, OAuth 2.0). Develop backend services for blockchain and Web3 applications. Integrate smart contracts, wallets, and blockchain nodes into backend systems. Design efficient database schemas and optimize query performance. Implement caching, queues, and background job processing. Build real-time services using WebSockets and event-driven architectures. Write clean, maintainable, and well-tested code. Collaborate with frontend developers, blockchain engineers, and product managers. Monitor application performance and troubleshoot production issues. Participate in code reviews and architectural discussions. Contribute to CI/CD pipelines and cloud deployments. Required Skills 4+ years of professional backend development experience. Strong proficiency in Node.js and TypeScript. Experience with NestJS or Express.js. Solid understanding of RESTful API and GraphQL development. Experience with PostgreSQL, MySQL, or MongoDB. Familiarity with Redis and message queues (RabbitMQ, Kafka, or BullMQ). Experience integrating Web3 libraries such as Ethers.js or Web3.js. Knowledge of Docker and containerized deployments. Experience with Git, GitHub, and Agile development workflows. Strong debugging, problem-solving, and communication skills. Preferred Qualifications Experience with AWS, Google Cloud, or Microsoft Azure. Experience deploying applications with Kubernetes. Knowledge of blockchain architecture and EVM-compatible networks. Familiarity with Solidity and smart contract interactions. Experience building DeFi, NFT, or tokenization platforms. Knowledge of microservices and event-driven systems. Experience with CI/CD tools such as GitHub Actions or Jenkins. Nice to Have Experience with Python or Go. Familiarity with Elasticsearch or OpenSearch. Knowledge of monitoring tools such as Prometheus and Grafana. Experience with blockchain indexing services such as The Graph. Open-source contributions or personal blockchain projects. Project Details Remote Long-term contract 30–40 hours per week Flexible working hours with overlapping collaboration time We're seeking engineers who enjoy building secure, scalable backend systems and are passionate about modern cloud technologies and Web3 infrastructure. If you're excited about solving complex engineering challenges and delivering production-ready software, we'd love to hear from you.