5 Arweave Jobs

As a Blockchain Developer at our company, you will be responsible for independently managing and executing all aspects of blockchain development. Your role will involve designing and building smart contracts, ensuring system security, and scalability. You should have a solid understanding of blockchain architecture and be prepared to handle technical and operational challenges in blockchain implementation. Your key responsibilities will include designing, developing, and deploying blockchain-based solutions such as smart contracts, decentralized applications (dApps), and other infrastructure components. You will oversee the entire lifecycle of blockchain solutions, from conceptualization to testing and deployment, optimizing systems for performance and security. Writing, testing, and deploying smart contracts on platforms like Ethereum and Binance Smart Chain will be a crucial part of your role. Additionally, you will need to implement best practices for blockchain security, conduct audits to prevent vulnerabilities, integrate blockchain with existing systems, and optimize performance for enhanced user experience. Problem-solving skills will be essential for handling any blockchain-related issues efficiently. Staying updated with the latest trends in blockchain technology and integrating new features for platform enhancement will also be expected from you. To qualify for this position, you should have proven experience in blockchain development, working with platforms like Ethereum and Solana. Proficiency in programming languages such as Solidity, JavaScript, Python, or Go related to blockchain development is required. Hands-on experience with smart contract development, blockchain consensus mechanisms, blockchain frameworks, cryptography, decentralized systems, and distributed ledgers is necessary. Strong problem-solving abilities, independence in work, and effective project management skills are also essential. Preferred qualifications include experience with DeFi protocols or NFTs, knowledge of blockchain-related scaling solutions, familiarity with cloud platforms and DevOps tools, and excellent communication skills to explain technical concepts clearly. This is a full-time role that requires in-person work during day shifts. If you meet the qualifications and are excited about the opportunity to contribute to blockchain development, we encourage you to apply.,

We are seeking a skilled Blockchain Developer with practical experience in Solana, Ethereum, and Base networks. The ideal candidate will possess expertise in smart contract development, blockchain integrations, and frontend React integration. You will be responsible for working on decentralized applications (dApps), optimizing smart contract performance, and ensuring seamless communication between smart contracts and web applications. Immediate joiners will be preferred. Your responsibilities will include developing and deploying smart contracts on Solana (Rust), Ethereum/Base (Solidity, Vyper), and working with the Anchor framework for Solana and Hardhat/Foundry for Ethereum development. Moreover, you will integrate smart contracts with React-based frontend applications using web3.js, ethers.js, viem, or Solana's @solana/web3.js. It will also be your duty to optimize gas usage and transaction efficiency for blockchain interactions, design and implement cross-chain interactions between Ethereum, Solana, and Base, and build and maintain backend services for blockchain applications using Node.js, GraphQL, and IPFS. You must ensure the security and auditability of smart contracts by following best practices and testing methodologies, work with wallet integrations (e.g., Metamask, Phantom, Coinbase Wallet), and collaborate with UI/UX teams to ensure a seamless user experience for decentralized applications. Required Skills & Experience - Blockchain & Smart Contracts: - Experience in developing and deploying smart contracts on Solana (Rust, Anchor) and Ethereum/Base (Solidity, Vyper). - Familiarity with Layer 2 solutions (Optimism, Arbitrum, Base) and sidechains. - Experience with NFTs, DeFi protocols, and tokenomics. - Frontend & Web3 Integration: - Strong knowledge of React.js, Next.js, and integrating dApps with ethers.js, web3.js, viem, or solana/web3.js. - Experience with GraphQL, REST APIs, and The Graph Protocol for querying blockchain data. - Security & Performance: - Understanding of smart contract security vulnerabilities (reentrancy, front-running, integer overflow, etc.). - Experience with smart contract auditing tools like Slither, MythX, or Certora. - Tools & Frameworks: - Solana: Anchor, Seahorse - Ethereum: Hardhat, Foundry, Remix - Storage: IPFS, Arweave, Filecoin - Version Control: Git, GitHub, GitLab Good To Have Skills: - Experience with cross-chain messaging protocols (e.g., LayerZero, Wormhole). - Understanding of MEV (Miner Extractable Value) and Flash Loans. - Knowledge of Zero-Knowledge Proofs (ZK-Rollups, zkSync, StarkNet). - Experience with Rust, Go, or TypeScript for blockchain development.,

About Us Challenz is an imaginative hub fusing social contests, short-form films, and Web3 creativity. Were currently developing a Real Estate NFT marketplace that allows shared ownership of properties through Ethereum smart agreements. Position Were looking for a Blockchain Engineer (Internship) to assist in creating and launching property-backed NFT contracts, embedding them into our app, and working closely with both frontend and backend teams to activate Web3 capabilities. Qualifications Proficiency in Solidity (ERC-721 / ERC-1155). Hands-on experience with Hardhat, Foundry, or Truffle. Knowledge of property tokenization and NFT data storage (IPFS / Arweave). Ability to design secure and cost-efficient contracts. Nice-to-have: familiarity with React Native, Node.js, Supabase. Internship Info Duration : 3-month unpaid placement (remote, with preference for NZ/AU candidates). Start : Immediate. Next Steps : Opportunity to transition into a paid role or equity arrangement. Contact : +64 2102244076 Show more Show less

We are searching for a skilled Blockchain Developer proficient in Solana (Rust + Anchor) and EVM-compatible chains such as Ethereum, Polygon, Base, BSC. The ideal candidate will excel in smart contract development, cross-chain interoperability, and full-stack dApp creation with React and Web3 integrations. Your responsibilities will involve constructing secure, scalable, and user-focused decentralized applications incorporating seamless wallet and blockchain integrations. As an Immediate Joiner, you will be expected to: - Develop and deploy smart contracts on Solana (Rust + Anchor) and EVM-based networks utilizing Solidity. - Construct full-stack dApps using React.js/Next.js, Web3.js/Ethers.js, and wallet integrations (MetaMask, Phantom, WalletConnect). - Implement cross-chain functionalities like bridging, syncing, wrapped tokens using LayerZero, Wormhole, or Axelar. - Write secure, gas-optimized contracts, and conduct comprehensive testing (Mocha, Jest, Anchor test suite, Hardhat, Foundry). - Integrate backend services involving Node.js, GraphQL/REST APIs, PostgreSQL/MongoDB, and Redis (optional). - Automate deployments utilizing Docker and CI tools (GitHub Actions, GitLab CI). - Monitor and troubleshoot on-chain activity with tools like Tenderly, Etherscan APIs, and Solana Explorer. - Collaborate with frontend and DevOps teams to ensure excellent UI/UX and scalability. Skills & Experience required: - 3+ years of full-stack development experience. - 1+ year of hands-on Solana smart contract development (Rust + Anchor). - Proficiency in Solidity and EVM tools (Hardhat, Foundry, Truffle). - Strong knowledge of Web3 wallet integration, blockchain architecture, and RPC interactions. - Experience with DeFi, NFTs, DAOs, and decentralized storage (IPFS, Arweave). - Familiarity with authentication protocols like JWT, OAuth2, and SIWE (Sign-In With Ethereum/Solana). - Understanding of smart contract vulnerabilities and Web3 security best practices. - Experience with zk-rollups (zk-SNARKs, zkSync, StarkNet). - Exposure to other chains like Cosmos, NEAR, or React Native/mobile dApps. - Contributions to open-source blockchain projects. - Knowledge of MEV, gas fee estimation, and bridging mechanics across chains.,

We are seeking a skilled Blockchain Developer with practical experience in Solana (Rust + Anchor) and EVM-compatible chains such as Ethereum, Polygon, Base, BSC. The ideal candidate will possess expertise in smart contract development, cross-chain interoperability, and full-stack dApp development with React and Web3 integrations. Your responsibilities will include developing secure, scalable, and user-centric decentralized applications with seamless wallet and blockchain integrations. As an Immediate Joiner, you will be tasked with developing and deploying smart contracts on Solana (Rust + Anchor) and EVM-based networks using Solidity. Additionally, you will build full-stack dApps utilizing React.js/Next.js, Web3.js/Ethers.js, and integrating wallets like MetaMask, Phantom, and WalletConnect. Implementing cross-chain features using LayerZero, Wormhole, or Axelar for bridging, syncing, and wrapped tokens will also be part of your role. You will be responsible for writing secure, gas-optimized contracts, conducting comprehensive testing using tools like Mocha, Jest, Anchor test suite, Hardhat, and Foundry. Integration of backend services with Node.js, GraphQL/REST APIs, PostgreSQL/MongoDB, and Redis (optional) will also be within your scope. Automation of deployments using Docker and CI tools such as GitHub Actions and GitLab CI is expected. Monitoring and troubleshooting on-chain activity using tools like Tenderly, Etherscan APIs, and Solana Explorer will also be part of your responsibilities. Collaboration with frontend and DevOps teams to ensure excellent UI/UX and scalability is crucial. The desired candidate should possess 3+ years of full-stack development experience, at least 1 year of hands-on Solana smart contract development (Rust + Anchor), proficiency in Solidity and EVM tools (Hardhat, Foundry, Truffle), strong knowledge of Web3 wallet integration, blockchain architecture, and RPC interactions. Experience with DeFi, NFTs, DAOs, and decentralized storage (IPFS, Arweave) is preferred. Familiarity with authentication protocols like JWT, OAuth2, and SIWE (Sign-In With Ethereum/Solana), understanding of smart contract vulnerabilities, and Web3 security best practices are required. Experience with zk-rollups (zk-SNARKs, zkSync, StarkNet), exposure to other chains like Cosmos, NEAR, or React Native/mobile dApps, contributions to open-source blockchain projects, knowledge of MEV, gas fee estimation, and bridging mechanics across chains will be an added advantage.,