ArtOfBlockChain
ArtOfBlockChain
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    Explanation:
    Storage accesses require Merkle-Patricia proof validation at the state level. This makes SLOAD one of the most expensive operations in Solidity. Caching values into memory significantly reduces repeated cost.
  • Shubhada Pande

    Shubhada Pande

    @ShubhadaJP • 1mo

    Role-Specific Hiring Playbooks

    Different Web3 roles require different evaluation signals.This hub organizes hiring expectations and interview signals by role — helping teams avoid using one-size-fits-all criteria.Smart Contract & Protocol RolesSmart contract developer expectations👉...
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    Explanation:
    Slither performs static code analysis; MythX simulates runtime—using both covers complementary vulnerabilities.
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    Explanation:
    Storage is the most expensive resource in the EVM. Large arrays result in high operational cost and poor long-term scalability.
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    Explanation:
    Calldata avoids copying user inputs into memory, significantly reducing gas usage for large payloads. Router contracts receive untrusted inputs, so avoiding memory expansion is both cheaper and safer. This is why AMMs and DEX routers heavily rely on calldata
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    Explanation:
    SSTORE is one of the most expensive operations and repeating it unnecessarily multiplies costs. Caching values into memory and writing once dramatically optimizes gas. This is foundational in gas-sensitive protocols.
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    Explanation:
    Echidna auto-generates random inputs to stress invariants, uncovering deep logic vulnerabilities.
  • Application deadline: 1 month

    Rust-Simplicity Maintainer

    Blockstream • FULL_TIME • NA

    Job description
    Blockstream is seeking a Rust-Simplicity Maintainer to oversee its Rust-based implementation of the Simplicity language and related libraries. The role centers on maintaining multiple interconnected crates—such as rust-simplicity, SimplicityHL, hal-simplicity, rust-elements, and elements-miniscript—ensuring they function cohesively within the broader Simplicity ecosystem. This position involves architecture, implementation, testing, and long-term maintenance...
    Details Login to apply
  • Application deadline: 1 week
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    Technical Writer

    TON Foundation • FULL_TIME • NA

    Job description
    TON Foundation is a non-profit organization supporting the growth and adoption of The Open Network (TON) blockchain. The Technical Writer will create, update, and maintain developer documentation that helps builders understand and use TON tools and APIs. This role partners closely with engineering and product teams to extract accurate technical...
    Details Login to apply
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    Explanation:
    Unbounded loops that depend on storage or user-controlled arrays can exhaust gas and render functions uncallable. Attackers can intentionally cause denial-of-service through loop amplification. Good design avoids external iteration
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    Explanation:
    assert() triggers a Panic error and is intended only for internal guarantees. If it fires in production, it indicates a compiler or logic bug. Developers should use require() for user-facing validation.
  • Application deadline: 1 month
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    Senior Solutions Architect

    Chainalysis • FULL_TIME • NA

    Job description
    Chainalysis develops blockchain data tools used by government agencies, financial institutions, and organizations to understand on-chain activity. The Senior Solutions Architect role sits within the Solutions Architecture function and supports the sales cycle by translating customer objectives into technical paths for implementation. This position requires a strong understanding of Chainalysis’...
    Details Login to apply
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    Explanation:
    Each delegatecall runs in the caller’s storage space, so nesting them multiplies the chances of overwriting incorrect slots. This breaks upgradeability guarantees and corrupts state. Auditors treat deep delegatecall chains as red flags.
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