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Java Developer
Join the technology team building OmniCard's Business Fintech OS.
Role details.
- Job ID
- JOB251104696
- Department
- Technology
- Openings
- 3
- Skills
- Blockchain, Data structure, PostgreSQL, MongoDB, Redis, MYSQL
Job description.
Required Skills & Experience
• 3–6 years of professional experience in backend development (Node.js / Java / Python).
• Proven hands-on experience integrating or interacting with blockchain APIs / SDKs (e.g., Web3.js, Ethers.js, Web3.py, Hyperledger Fabric SDK).
• Understanding of smart contracts, events, and transaction lifecycle.
• Experience with cryptographic standards (ECDSA, SHA-256, AES) and key management.
• Strong database knowledge — PostgreSQL, MongoDB, Redis, MYSQL or equivalent.
• Understanding of microservices, asynchronous processing, and message queues (Kafka / RabbitMQ).
• Familiarity with Docker, Kubernetes, and cloud environments (AWS / Azure / GCP).
Preferred / Good-to-Have
• Experience developing or integrating smart contracts (Solidity).
• Exposure to DeFi, NFTs, or tokenized asset systems.
• Understanding of decentralized identity (DID) or zero-knowledge