Java Developer

3 days ago

Noida, Uttar Pradesh, India Eroute Technologies Full time

Description
Key Responsibilities :

  • Design, develop, and maintain scalable backend services and APIs using Java.
  • Integrate and interact with blockchain APIs / SDKs such as , , , or Hyperledger Fabric SDK.
  • Work with smart contracts, handle event-driven logic, and manage blockchain transaction lifecycles.
  • Implement and maintain secure cryptographic mechanisms including ECDSA, SHA-256, and AES for data protection and key management.
  • Design and optimize database schemas and queries using PostgreSQL, MongoDB, Redis, or MySQL.
  • Develop microservices and handle asynchronous processing using Kafka or RabbitMQ.
  • Containerize and deploy services using Docker and Kubernetes in AWS, Azure, or GCP environments.
  • Collaborate with frontend, blockchain, and DevOps teams to deliver end-to-end platform functionality.
  • Ensure system security, scalability, and fault tolerance across distributed systems.
  • Write clean, maintainable, and testable code following best practices and peer review processes.

Required Skills & Experience

  • 3 to 6 years of professional experience in backend development with , Java, Go, or Python.
  • Proven experience integrating with blockchain APIs/SDKs , , , Hyperledger Fabric, etc.)
  • Solid understanding of smart contracts, events, and transaction processing on blockchain networks.
  • Familiarity with cryptographic algorithms and key management standards (ECDSA, SHA-256, AES).
  • Strong knowledge of relational and NoSQL databases PostgreSQL, MongoDB, Redis, or MySQL.
  • Experience with microservices architecture, message queues (Kafka, RabbitMQ), and asynchronous systems.
  • Hands-on experience with Docker, Kubernetes, and cloud platforms (AWS / Azure / GCP).

Preferred / Good-to-Have

  • Experience developing or integrating smart contracts using Solidity.
  • Exposure to DeFi, NFT, or tokenized asset ecosystems.
  • Understanding of decentralized identity (DID), zero-knowledge proofs, or related blockchain privacy concepts

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