KX - Blockchain/Solidity Developer [Exp 4-10 Yrs] About: We’re looking for a passionate, self-motivated, team player Blockchain/Solidity Developer to help us build the next generation of financial products ecosystem. You will gain an ownership over end-to-end ecosystem products as well as the ability to influence the creation, design, and execution of future products. You will be responsible for ensuring a consistent, high-quality products that deliver great user experience across the ecosystem with robustness and security. Preferred Skill: Ethereum, fullstack (React, Node.js, ideally Typescript), Smart Contract Responsibilities: Work closely with internal and external parties to rapidly iterate, experiment, and launch products. Create a unified component library for use across all products. Rapidly implement functional UI elements from design mocks, with an eye toward performance and accessibility. Know when to create abstractions vs. one-off features. Ensure that components are functional, elegant, performant, and mobile-friendly. Understand when and how to run UI tests. Qualifications: 3+ years of experience as a Software Engineer 1y+ years of Solidity smart contract development experience 2+ years of as front-end or fullstack or backend developer (React, Node.js, ideally Typescript) Experience developing, deploying and running Dapps/smart contracts in production on Ethereum mainnet or L2/sidechain (ideally DeFi Dapps/protocols and/or token-based use cases) Knowledge of secure Solidity development patterns for tokens and DeFi protocols Good understanding of Javascript ethereum SDKs (web3,js, ethers.js) Good knowledge of most prominent ERC/EIP Ethereum standards Good knowledge of smart contract development tools/frameworks (Truffle, Hardhat) High quality and testing standards Good documentation practices Experience developing and contributing to open source projects Familiarity with DeFi protocols mechanics and smart contract codebases, and/or digital assets/payments and other token standards like ERC-777/20/721/1155/1400 and existing open source implementations (OpenZeppelin, Universal Token, etc.) Knowledge/understanding of cross-chain interoperability techniques (HTLC, bridging) Knowledge/understanding of L2 technologies (ZK/optimistic rollups, PoS/PoA sidechains) Experience using smart contract auditing techniques (fuzzing, other) Deep knowledge/experience understanding of EVM BSc/MSc in Computer Science or related subject Excellent verbal and written communication in English Teamwork, flexibility, initiative, communication and organization Ability to share knowledge, train other developers Willingness to constantly learn & improve, challenging yourself to stay at the top of your game