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About Hashgraph:
Hashgraph is a fast-growing software company committed to supporting, developing and servicing Hedera, an open source, proof-of-stake platform. Hedera is EVM-compatible and has been specifically built to meet the needs of enterprise and Web3 applications, which require speed, security, stability and sustainability. Hedera’s public network is governed by industry-leading organizations, spanning 11 sectors and 14 regions who oversee the development and direction of the decentralized platform.
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.
You may find yourself doing all of the following:
- 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 Java-based smart contract services on the Hedera network that parse byte code and process transactions submitted to the network via an EVM client
- 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 EVM transactions life cycle
- 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 devs can continue to use their familiar tools when migrating to Hedera from other EVM chains
- Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency and effectiveness
- Developing various aspects of the Hedera Hashgraph Distributed Ledger Ecosystem
- Being a strong and proficient hands-on programmer
- Spending 80% of your time designing, coding, and testing
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
- Master’s 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
What you need to know about the Los Angeles Tech Scene
Los Angeles is a global leader in entertainment, so it’s no surprise that many of the biggest players in streaming, digital media and game development call the city home. But the city boasts plenty of non-entertainment innovation as well, with tech companies spanning verticals like AI, fintech, e-commerce and biotech. With major universities like Caltech, UCLA, USC and the nearby UC Irvine, the city has a steady supply of top-flight tech and engineering talent — not counting the graduates flocking to Los Angeles from across the world to enjoy its beaches, culture and year-round temperate climate.
Key Facts About Los Angeles Tech
- Number of Tech Workers: 375,800; 5.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Snap, Netflix, SpaceX, Disney, Google
- Key Industries: Artificial intelligence, adtech, media, software, game development
- Funding Landscape: $11.6 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Strong Ventures, Fifth Wall, Upfront Ventures, Mucker Capital, Kittyhawk Ventures
- Research Centers and Universities: California Institute of Technology, UCLA, University of Southern California, UC Irvine, Pepperdine, California Institute for Immunology and Immunotherapy, Center for Quantum Science and Engineering
