We are looking for an experienced Blockchain Developer to join our engineering team and build secure, scalable, production-grade blockchain infrastructure. If you have hands-on experience with cryptocurrency wallets, smart contracts, Web3 integrations, and multi-chain ecosystems, we'd love to hear from you.
What We're Looking For
1. 3+ years of professional blockchain development experience.
Proven experience deploying blockchain applications or smart contracts on mainnet.
2. Hands-on experience building production cryptocurrency wallet infrastructure.
3. Strong understanding of wallet architecture and blockchain transaction lifecycles.
4. Experience with multi-chain and cross-chain applications.
Knowledge of blockchain security, smart contract auditing, DeFi, crypto payments, exchanges, or Web3 gaming platforms.
5. Experience with one or more blockchain networks including Ethereum, Polygon, BNB Smart Chain, Base, Arbitrum, Solana, Bitcoin, and Tron.
6. Strong understanding of BIP-32, BIP-39, BIP-44, cryptography, digital signatures, and secure key management.
7. Backend development experience using Node.js and TypeScript.
Key Responsibilities
1. Design, develop, and maintain secure blockchain and Web3 applications.
2. Build and integrate custodial, non-custodial, HD, MPC, multisig, and multi-chain wallets.
3. Implement wallet creation, seed phrase recovery, transaction signing, broadcasting, gas estimation, and transaction monitoring.
4. Develop, test, deploy, verify, and maintain smart contracts using Solidity, Rust, or equivalent technologies.
5. Manage the complete blockchain deployment lifecycle from local development → testnet → security testing → mainnet → production monitoring.
6. Integrate RPC providers, blockchain nodes, WebSockets, explorers, indexers, WalletConnect, hardware wallets, custody providers, bridges, DEXs, and third-party Web3 APIs.
7. Implement blockchain event listeners, balance tracking, transaction monitoring, confirmation handling, nonce management, and chain reorganization handling.
8. Design and implement secure key management using KMS, HSM, MPC, multisig, hot/cold wallet architecture, and secrets management.
Pay: Up to ₹45,000.00 per month
Experience:
- Blockchain: 2 years (Required)
Location:
- Lucknow, Uttar Pradesh (Required)
Work Location: In person
