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Quantum Cipher
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  • Senior Software Engineer  

    - Indonesia

    🚀 We’re Hiring: Blockchain Developer (Explorer, Wallet & APIs)We’re looking for a skilled and experienced Blockchain Developer to join our team and lead the development of a Blockchain Explorer, Wallet, and API infrastructure.🔧 Key Responsibilities:Design and develop a robust Blockchain Explorer with real-time transaction tracking, block visualization, and analytics.Build secure, scalable Blockchain Wallets (web/mobile) with features like key management, transaction signing, and multi-chain support.Develop and maintain high-performance APIs for blockchain data access and integration.Architect and manage database systems for efficient blockchain data indexing, storage, and querying.Integrate with existing blockchain networks (EVM and/or non-EVM).Ensure security best practices (encryption, key storage, smart contract interaction).Optimize performance and scalability across backend and data layers.💡 Requirements:Proven experience in blockchain development.Strong knowledge of Ethereum / EVM chains (or other major blockchain ecosystems).Strong expertise in database design and management (SQL/NoSQL, indexing, high-volume data handling).Experience with Node.js, or Go.Familiarity with Web3.js, Ethers.js, or similar libraries.Experience building or working with blockchain explorers or wallets is highly preferred.Solid understanding of smart contracts, cryptography, and distributed systems.🌟 Nice to Have:Experience with Layer 2 solutions.Knowledge of DeFi/NFT ecosystems.Frontend experience (React or similar frameworks).Experience with cloud infrastructure (AWS, GCP, or Azure).

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Astrid-Lindgren-Weg 12 38229 Salzgitter Germany