Staff Software Engineer - Smart Contracts Team

About the position

About The Role: The Smart Contracts team is looking for a seasoned engineer who can contribute to the development of the Hedera services in both the Java and the web3 APIs in JS/TS that process smart contract transactions across the network submitted using varied web3 tools. Qualification Requirements: Experience with distributed open-source application development Excellent debugging, critical thinking, and interpersonal skills Knowledge of the blockchain technology ecosystem, particularly the EVM Expertise in the Java and JS/TS programming language and its ecosystem of libraries and tools Experience with smart-contract development with Solidity/Vyper, Foundry, Web3.js / Ethers.js frameworks, JavaScript/TypeScript Experience with Ethereum Development Suites (e.g., Harhat, Foundry, Truffle, Ganache, Tenderly) Experience writing secure, efficient, and gas-optimized smart contracts for decentralized applications (DApps) on EVM-compatible networks Understanding of Ethereum ecosystem ERC20s, ERC721s, ERC1155s, on-chain and off-chain Experience with Wallet integrations (MetaMask, WalletConnect, etc.): Tools and libraries for connecting Web3 applications with users' cryptocurrency wallets Strong understanding of RESTful API design and development Familiarity with test-driven software development processes and continuous integration tools and systems Experience with web3 tools that support development, indexing, and transaction management, such as TheGraph 7+ years of software development experience Masters degree in Computer Science or a similar field or equivalent work experience Other skills that are great to bring with you but that we can help you develop: Knowledge of the Hedera network Deep knowledge of and experience with the Java VM, covering its strengths and weaknesses 5+ years of Java experience Deep knowledge of and 5+ years of experience with Node JS, covering its strengths and weaknesses Strong grasp of Computer Science fundamentals including concurrency, performance optimization, and reusability Strong engineering principles and processes aimed at developing simple, modular, testable, and high-quality code Familiarity with security principles, cryptographic tools and libraries Familiarity with high-performance architectural systems and design patterns

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