Javascript Web3 Jobs in Texas, United States  
 55 jobs found
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 | Job Position | Company | Posted | Location | Salary | Tags | 
|---|---|---|---|---|---|
  Hashgraph |  Dallas, TX, United States |   $140k - $157k  |  |||
  Overclock Labs |  Austin, TX, United States |   $80k - $95k  |  |||
  Seek 2 Thrive |  Houston, TX, United States |   $72k - $100k  |  |||
  Unit 410 |  Austin, TX, United States |   $57k - $103k  |  |||
| Learn job-ready web3 skills on your schedule with 1-on-1 support & get a job, or your money back. |   |     by Metana   Bootcamp Info  |  |||
  Zynga |  Austin, TX, United States |   $76k - $81k  |  |||
  Brave |  Austin, TX, United States |   $81k - $100k  |  |||
  Fortress IO |  Austin, TX, United States |   $87k - $168k  |  |||
  InfStones |  United States |   $63k - $90k  |  |||
  Fortress Trust |  Austin, TX, United States |   $87k - $168k  |  |||
  Turbofish |  Austin, TX, United States |   $81k - $84k  |  |||
  Gala |  Austin, TX, United States |   $84k - $144k  |  |||
  Kava Labs |  Houston, TX, United States |   $130k - $160k  |  |||
  Kava Labs |  Dallas, TX, United States |   $130k - $160k  |  |||
  Kava Labs |  Austin, TX, United States |   $130k - $160k  |  |||
  Metatheory |  Houston, TX, United States |   $175k - $200k  |  
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