Flexsin Technology - Software Engineer - Blockchain Technologies Flexsin Inc.

1.0 - 5.0 years

0 Lacs

madhya pradesh

On-site

We are searching for a skilled Blockchain Developer proficient in Solana (Rust + Anchor) and EVM-compatible chains such as Ethereum, Polygon, Base, BSC. The ideal candidate will excel in smart contract development, cross-chain interoperability, and full-stack dApp creation with React and Web3 integrations. Your responsibilities will involve constructing secure, scalable, and user-focused decentralized applications incorporating seamless wallet and blockchain integrations. As an Immediate Joiner, you will be expected to: - Develop and deploy smart contracts on Solana (Rust + Anchor) and EVM-based networks utilizing Solidity. - Construct full-stack dApps using React.js/Next.js, Web3.js/Ethers.js, and wallet integrations (MetaMask, Phantom, WalletConnect). - Implement cross-chain functionalities like bridging, syncing, wrapped tokens using LayerZero, Wormhole, or Axelar. - Write secure, gas-optimized contracts, and conduct comprehensive testing (Mocha, Jest, Anchor test suite, Hardhat, Foundry). - Integrate backend services involving Node.js, GraphQL/REST APIs, PostgreSQL/MongoDB, and Redis (optional). - Automate deployments utilizing Docker and CI tools (GitHub Actions, GitLab CI). - Monitor and troubleshoot on-chain activity with tools like Tenderly, Etherscan APIs, and Solana Explorer. - Collaborate with frontend and DevOps teams to ensure excellent UI/UX and scalability. Skills & Experience required: - 3+ years of full-stack development experience. - 1+ year of hands-on Solana smart contract development (Rust + Anchor). - Proficiency in Solidity and EVM tools (Hardhat, Foundry, Truffle). - Strong knowledge of Web3 wallet integration, blockchain architecture, and RPC interactions. - Experience with DeFi, NFTs, DAOs, and decentralized storage (IPFS, Arweave). - Familiarity with authentication protocols like JWT, OAuth2, and SIWE (Sign-In With Ethereum/Solana). - Understanding of smart contract vulnerabilities and Web3 security best practices. - Experience with zk-rollups (zk-SNARKs, zkSync, StarkNet). - Exposure to other chains like Cosmos, NEAR, or React Native/mobile dApps. - Contributions to open-source blockchain projects. - Knowledge of MEV, gas fee estimation, and bridging mechanics across chains.,

Posted 4 days ago

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Blockchain Developer The Unmarketing Agency

2.0 - 6.0 years

0 Lacs

panaji, goa

On-site

The ideal candidate for the role of Blockchain Developer at our Stealth Prop-tech startup will be responsible for developing and maintaining backend services and APIs to connect our Property Search platform with blockchain networks. You will play a crucial role in integrating real estate tokenization platforms and managing the flow of data related to property tokens and ownership. Your tasks will include building API endpoints for frontend applications to interact with blockchain functionalities, ensuring data consistency between on-chain state and off-chain databases, implementing event listeners for smart contract monitoring, and collaborating with the security team to ensure the security of integration points. Troubleshooting and resolving issues related to blockchain connectivity and third-party API integrations will also be part of your responsibilities. To qualify for this role, you should have 3-5+ years of experience in backend software development, with a minimum of 2+ years focused on integrating systems with blockchain technology. A Bachelor's degree in Computer Science, Engineering, or a related technical field is required. Proficiency in a modern backend language such as Node.js, Python, or Go is essential, along with hands-on experience in interacting with blockchain networks using libraries like Ethers.js, Web3.js, or similar. A solid understanding of blockchain fundamentals, smart contracts, and wallet interactions, as well as experience with relational databases (e.g., PostgreSQL) and API design, are also necessary. Preferred qualifications for this role include experience in the PropTech or FinTech sectors, familiarity with the regulatory landscape in the UAE (particularly the VARA framework for virtual assets), experience working in a cloud environment (AWS, Google Cloud, or Azure), knowledge of message queues (e.g., RabbitMQ, Kafka) for handling blockchain events, and experience with secure key management and custody solutions.,

Posted 6 days ago

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