ArtOfBlockChain
ArtOfBlockChain
Latest Trending Most replied
  • #A
    #B
    #C
    #D
    Explanation:
    EXTCODESIZE checks if the target has code deployed. It helps detect contracts vs EOAs in validation logic
  • #A
    #B
    #C
    #D
    Explanation:
    PUSH0 provides a zero literal without consuming calldata or memory. This reduces bytecode size and simplifies stack management. It's extremely helpful in tight loops and assembly-heavy contracts.
  • #A
    #B
    #C
    #D
    Explanation:
    Selector collisions occur when different function signatures hash to the same first 4 bytes. This leads to unintended dispatching and silent bugs. It’s especially dangerous in diamond proxies and minimal routers.
  • #A
    #B
    #C
    #D
    Explanation:
    The internal specifier limits access to derived contracts only, reducing attack surface and inheritance misuse.
  • Application deadline: 1 week
    P

    Data Engineer

    Paradex • FULL_TIME • NA

    Job description
    Paradex is a decentralized finance platform combining exchange trading, asset management, and borrow/lend functionality within a single unified account structure. The company operates a high-throughput blockchain-based system supporting a wide range of spot and derivatives markets. As a Data Engineer, you will be responsible for designing and maintaining the data...
    Details Login to apply
  • Application deadline: 1 month
    C

    Backend Engineer — MetaMask (API Platform)

    Consensus • FULL_TIME • NA

    Job description
    This role supports MetaMask’s API Platform team, which builds backend services powering key product experiences across MetaMask clients. As a Backend Engineer, you will develop Node.js services that support APIs such as Price, Token, Account, and NFT, contributing to reliable and scalable infrastructure used by millions of users. The position...
    Details Login to apply
  • Application deadline: 1 week
    W

    Smart Contract Engineer – SVM

    Wynd Labs • FULL_TIME • NA

    Job description
    Wynd Labs builds infrastructure that enables large-scale collection and processing of public web data for organizations developing advanced AI models. The team supports Grass, a bandwidth-sharing network that powers a globally distributed web crawler, along with data pipelines used to ingest, segment, and annotate large volumes of video, audio, and...
    Details Login to apply
  • Application deadline: 1 month

    Platform Engineer

    Aptos Labs • FULL_TIME • NA

    Job description
    Aptos Labs is a people-first blockchain project built on the foundations of the original Diem research, focused on enabling global access to safe and scalable decentralized assets. The Platform team provides the core tooling and infrastructure that support internal engineering teams and the wider Aptos ecosystem. As a Platform Engineer,...
    Details Login to apply
  • Application deadline: 1 month
    P

    Blockchain Architect

    Protofire • FULL_TIME • NA

    Job description
    Protofire is hiring a Blockchain Architect to support the design and delivery of Web3 solutions for clients and community projects. The role involves leading early-stage discovery, defining technical requirements, and shaping high-level architecture that aligns with customer goals. You will work closely with sales, product, and engineering teams to evaluate...
    Details Login to apply
  • #A
    #B
    #C
    #D
    Explanation:
    Fallback functions run automatically when unknown calls or plain ETH are sent. If they contain external calls or heavy logic, attackers can trigger recursion or re-entrancy. They must be kept minimal and safe.
  • Shubhada Pande

    Shubhada Pande

    @ShubhadaJP • 1mo

    Core Smart Contract Engineering Skills

    This sub-cluster focuses on the baseline engineering judgment expected from smart contract developers, especially at junior-to-mid levels.It goes beyond “what is X” questions and instead captures:how engineers explain common vulnerabilities...
    1
    Replies
  • 1
    Replies
  • #A
    #B
    #C
    #D
    Explanation:
    Memory follows a quadratic cost function, meaning costs rise rapidly as the memory footprint grows. Careless array allocations can suddenly inflate execution cost. This is a frequent root cause of gas blowups in audits.
  • 2
    Replies
  • Application deadline: 1 month
    Z

    Senior React Native Engineer

    ZetaChain • FULL_TIME • NA

    Job description
    This role focuses on building production-ready mobile applications that bring cross-chain connectivity and AI-driven interfaces to end users. As a Senior React Native Engineer, you’ll lead mobile development across iOS and Android, working closely with design, product, and backend teams to deliver smooth, secure, and high-performance experiences. The position requires...
    Details Login to apply
Home Channels Search Login Register