Genesis NGN

Blockchain Developer

Genesis NGN

21 days ago

## Role Overview **Blockchain Java Backend Developer Job Description** We are looking for a **Blockchain Java Backend Developer** responsible for designing, developing, and maintaining backend services that interact with blockchain networks. The ideal candidate should have strong experience in **Java backend development, distributed systems, and blockchain technologies such as Ethereum or Hyperledger Fabric**. ## Key Responsibilities - Design and develop secure, scalable backend services in Java to interact with blockchain networks. - Build RESTful APIs and microservices to support blockchain-based applications. - Develop and integrate smart contracts using blockchain platforms such as Ethereum or Hyperledger Fabric. - Implement transaction processing, wallet integration, and blockchain node communication. - Ensure security, cryptography, and data integrity in blockchain applications. - Optimize system performance for high-throughput distributed environments. - Collaborate with frontend developers, DevOps teams, and blockchain architects. - Write unit tests, integration tests, and documentation. - Participate in architecture discussions and code reviews. ## Technical Skills ### Required Skills & Qualifications - Strong experience with Java backend development (Java 8+). - Experience with frameworks such as Spring Boot or Spring Framework. - Hands-on experience with blockchain platforms like: - Ethereum - Hyperledger Fabric - Corda (optional) - Experience with smart contracts (e.g., Solidity). - Knowledge of cryptography, consensus mechanisms, and distributed ledgers. - Experience building REST APIs and microservices. - Familiarity with Docker, Kubernetes, and cloud platforms. - Experience with relational or NoSQL databases. ### Preferred Skills - Experience with Web3 libraries such as Web3j. - Knowledge of DeFi, NFTs, or token standards (ERC-20 / ERC-721). - Experience with CI/CD pipelines and DevOps practices. - Understanding of event-driven architecture and messaging systems. ## Education - Bachelor's or Master's degree in Computer Science, Information Technology, or a related field. > **Note:** Client is not sponsoring any Visa. When applying, mention the word **CANDYSHOP** to show you read the job post completely.