ArtOfBlockChain
ArtOfBlockChain
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  • Application deadline: 1 week
    N

    Senior Product Designer

    Nansen • FULL_TIME • NA

    Job description
    About NansenNansen is a data intelligence platform built to make on-chain analytics accessible, actionable, and insightful. Our mission is to help investors, builders, and decision-makers understand blockchain data in real time — powering smarter moves across the Web3 ecosystem.What You’ll DoAs a Senior Product Designer, you’ll help shape how users...
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  • Application deadline: 1 week
    Job description
    🚀 The MissionQuickNode isn’t just a blockchain company — it’s the backbone of the decentralized internet. Backed by Tiger Global, SoftBank, and Y Combinator, the team operates at the intersection of high-performance data infrastructure and Web3 innovation, serving enterprise-grade clients at scale.As a Senior Infrastructure Engineer (Core Systems), you’ll architect,...
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    Explanation:
    Sustained transaction frequency shows that users are consistently finding real value in a blockchain product, not just testing it temporarily. It’s a strong Tier-3 proof of product-market fit because it reflects ongoing user trust, retention, and organic demand—far more meaningful than vanity metrics like token price or social media hype.
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    Explanation:
    Transparent gas-fee explanations reduce drop-offs; clarity > aesthetics in first-time wallet UX.
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    Explanation:
    KYT (Know Your Transaction) tools continuously track wallet and transaction behavior to spot patterns linked to money laundering or terrorist financing. They flag suspicious activity in real time, helping crypto exchanges and institutions stay compliant with global regulations like FATF’s Travel Rule and EU MiCA, which require active monitoring of on-chain transactions for risk assessment and transparency.
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    Explanation:
    DAO PMs manage globally distributed contributors — asynchronous updates ensure aligned execution without meetings.
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    Explanation:
    State Caching helps optimize gas by storing frequently used state variables in memory instead of repeatedly writing them to the blockchain. Since every SSTORE (state write) costs significant gas, caching reduces redundant storage operations, making smart contracts more efficient and cost-effective.
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    Explanation:
    Proof of Reserves (PoR) is an audit that checks if a crypto exchange truly holds enough on-chain assets to cover all user deposits. It compares wallet balances with total liabilities to confirm solvency. This transparent process builds user and regulatory trust by proving funds actually exist.
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    Explanation:
    The internal specifier limits access to derived contracts only, reducing attack surface and inheritance misuse.
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    Explanation:
    Retention captures wallet-level engagement and recurring activity — a Tier-2 metric for real community stickiness.
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