Staff Software Engineer – Smart Contracts

Job not on LinkedIn

November 4

Apply Now

Receive Emails with Similar Jobs

Hashgraph

WebsiteLinkedInAll Job Openings

Crypto • Web 3 • Enterprise

Hashgraph is a fast-growing software company that provides engineering, product development, and marketing support for the Hedera distributed ledger network. It develops and maintains core Hedera services (Consensus Service, Token Service, Smart Contract Service), builds open-source community tools such as the HashScan ledger explorer, and offers enterprise products and APIs including private permissioned networks (HashSphere), NFT tooling, loyalty and token management, and payments. Hashgraph partners with enterprises and developers to enable scalable, secure, and sustainable decentralized applications, bridging traditional systems and Web3 ecosystems.

51 - 200 employees

Founded 2022

₿ Crypto

🌐 Web 3

🏢 Enterprise

📋 Description

• Staying connected with the EVM ecosystem, bringing vital learnings, discussions, and applicable explorations on Hedera back to the team to improve EVM DevEx • Implementing and enhancing the JSON Rpc Relay (Js/Ts) to enable seamless EVM transactions submission to the network • Maintaining and evolve community tools like blockexplorer, verification and data gathering services, that hashgraph deploys for community servicing • Implementing examples, how-tos, and documentation that showcase web3 tool usage, and EIP and Hedera functionalities • Designing, developing, and maintaining server-side logic for back-end solutions with public APIs involving TypeScript, SQL, data ingestion, REST, GraphQL, and Web Sockets • Applying web3 knowledge of Solidity and life cycle of an EVM transaction • Writing efficient, reusable, and reliable code to optimize for maximum speed, scalability, and system efficiency • Exploring and unblocking web3 tool and dApp integration capabilities on Hedera, ensuring developers can continue to use their familiar tools when migrating to Hedera from other EVM chains • Spending 80% of your time designing, coding, and testing

🎯 Requirements

• Master’s degree in Computer Science or a similar field or equivalent work experience • 7+ years of software development experience • 4+ years of blockchain development experience • Proficiency in JS/TS programming language and its ecosystem of libraries • Node.js backend development experience • Familiarity with high-performance architectural systems and design patterns • Knowledge of the blockchain technology ecosystem, particularly EVM • Experience with smart-contract development with Solidity/Vyper, HardHat, Foundry, Web3.js / Ethers.js frameworks, JavaScript/TypeScript • Experience writing secure, efficient, and gas-optimized smart contracts for decentralized applications (dApps) on EVM-compatible networks • Experience with wallet integrations (MetaMask, WalletConnect, etc.), and tools and libraries for connecting web3 applications with users' wallets • Understanding of Ethereum ecosystem ERC20s, ERC721s, ERC1155s, on-chain and off-chain • Ethereum Json RPC specification knowledge • Experience with distributed open-source application development • Excellent debugging, critical thinking, and interpersonal skills • Familiarity with test-driven software development processes and continuous integration tools and systems

🏖️ Benefits

• Health insurance • 401(k) matching • Flexible work hours • Paid time off • Remote work options