Senior Blockchain Developer

As a Senior Blockchain Architect, you will be responsible for leading the design, development, and security of a decentralized ecosystem. Your deep expertise in smart contract systems, wallet infrastructure, and DeFi protocols will be crucial in architecting robust, scalable, and secure blockchain infrastructure. You will collaborate closely with founders, developers, and product teams to ensure the success of various projects. Key Responsibilities: - Design, architect, and audit smart contract systems (Solidity + Hardhat/Foundry) for high-stakes financial applications. Enforce testing, upgradeability, and audit readiness. - Build and optimize Subgraphs with The Graph to power scalable on-chain data for dApps. This includes schema design, indexing performance, and reorg resilience. - Guide secure frontend integration across testnet/mainnet using technologies like Next.js, wagmi/viem, and Ethers.js. Ensure typed contract bindings, TX simulation, and feature-flagged rollouts. - Architect backend services (Node.js + TypeScript, MongoDB/Redis/queues) for wallet-driven and tokenized features. Design APIs/webhooks for trading, settlement, and analytics. - Deliver DeFi modules (staking, yield, liquidity pools) with clear risk controls, oracle strategy, fee models, and upgrade paths. - Own non-custodial wallet architecture for React Native and MV3 browser extensions. Focus on key management flows, signing UX, recovery, and WalletConnect v2. - Integrate on/off-ramps and liquidity providers (e.g., B2C2) and DEX aggregators (e.g., 1inch/0x) with best-execution logic, slippage controls, and compliance hooks. - Implement DevSecOps practices including secure SDLC, CI/CD for contracts & apps, secrets management, SAST/DAST, runtime monitoring, and incident response. - Establish observability & SRE practices like block-lag/mempool monitoring, alerting, log aggregation, dashboards, and on-call runbooks for chain events and reorgs. - Mentor engineers, set coding standards, review designs/PRs, and contribute to the technical roadmap, scalability, and security strategy. Qualifications Required: - Experience in Blockchain: 4 years This is a full-time position with benefits including food provided, paid time off, and provident fund. The work location is in person at Malviya Nagar, Jaipur, Rajasthan. Relocation before starting work is required.,