Software Engineer - Blockchain Flexsin Inc.

3.0 - 7.0 years

0 Lacs

uttar pradesh

On-site

We are seeking a skilled Blockchain Developer with practical experience in Solana, Ethereum, and Base networks. The ideal candidate will possess expertise in smart contract development, blockchain integrations, and frontend React integration. You will be responsible for working on decentralized applications (dApps), optimizing smart contract performance, and ensuring seamless communication between smart contracts and web applications. Immediate joiners will be preferred. Your responsibilities will include developing and deploying smart contracts on Solana (Rust), Ethereum/Base (Solidity, Vyper), and working with the Anchor framework for Solana and Hardhat/Foundry for Ethereum development. Moreover, you will integrate smart contracts with React-based frontend applications using web3.js, ethers.js, viem, or Solana's @solana/web3.js. It will also be your duty to optimize gas usage and transaction efficiency for blockchain interactions, design and implement cross-chain interactions between Ethereum, Solana, and Base, and build and maintain backend services for blockchain applications using Node.js, GraphQL, and IPFS. You must ensure the security and auditability of smart contracts by following best practices and testing methodologies, work with wallet integrations (e.g., Metamask, Phantom, Coinbase Wallet), and collaborate with UI/UX teams to ensure a seamless user experience for decentralized applications. Required Skills & Experience - Blockchain & Smart Contracts: - Experience in developing and deploying smart contracts on Solana (Rust, Anchor) and Ethereum/Base (Solidity, Vyper). - Familiarity with Layer 2 solutions (Optimism, Arbitrum, Base) and sidechains. - Experience with NFTs, DeFi protocols, and tokenomics. - Frontend & Web3 Integration: - Strong knowledge of React.js, Next.js, and integrating dApps with ethers.js, web3.js, viem, or solana/web3.js. - Experience with GraphQL, REST APIs, and The Graph Protocol for querying blockchain data. - Security & Performance: - Understanding of smart contract security vulnerabilities (reentrancy, front-running, integer overflow, etc.). - Experience with smart contract auditing tools like Slither, MythX, or Certora. - Tools & Frameworks: - Solana: Anchor, Seahorse - Ethereum: Hardhat, Foundry, Remix - Storage: IPFS, Arweave, Filecoin - Version Control: Git, GitHub, GitLab Good To Have Skills: - Experience with cross-chain messaging protocols (e.g., LayerZero, Wormhole). - Understanding of MEV (Miner Extractable Value) and Flash Loans. - Knowledge of Zero-Knowledge Proofs (ZK-Rollups, zkSync, StarkNet). - Experience with Rust, Go, or TypeScript for blockchain development.,

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