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Lead Blockchain Security Developer (Canton)

🕒 3 days ago
Blockchain SecuritySmart Contract DevelopmentSecurity AuditsUpgradeable Contracts

📜 Description

  • OpenZeppelin is the security standard onchain finance is built on. Founded in 2015, our mission is to accelerate the world's transition to an open financial system, built on open standards and secured by rigorous
  • Our open-source Contract Libraries have facilitated over $35 trillion in onchain value and are used by 10 of the top 10 tokenized money market funds and 9 of the top 10 stablecoins by market cap.
  • Please note: Always refer to OpenZeppelin's official job page for the most accurate information about our open roles, as we have seen multiple third party job sites posting inaccurate information.
  • The Secure Development team ❤️
  • OpenZeppelin is the security partner of choice for the most important protocols in Web3. Our Secure Development team sits at the intersection of building and breaking: we design, implement, and harden production-grade
  • We work the way the rest of the industry will five years from now. Every developer on the team is a fully AI-native engineer, supported by outstanding internal AI tooling built for every phase of secure development.

🛠️ Requirements

  • 3+ years of experience in UTXO-based protocol development (Canton, Cardano, Midnight, Zcash, Aleo, Mina, or similar).
  • 3+ years of experience on DeFi engineering in production. AMMs, vaults (ERC-4626 or equivalent), lending protocols, cross-chain settlement.
  • A security-first mindset. this is non-negotiable. You have demonstrable experience either auditing, breaking, or hardening production systems — published threat models, audit reports, responsible disclosures, or equivalent output.
  • Library / SDK API design taste. You've built reusable, import-first developer libraries, not just applications. You have opinions on extensibility patterns (hooks, modular components, override points) and on what makes an audited primitive pleasant to consume.
  • Cross-chain interoperability exposure. Production work with at least one major cross-chain messaging protocol (Chainlink CCIP, LayerZero, Wormhole, Axelar, or similar).
  • Institutional / compliance design fluency: You can design with credential gates, multi-party attestation, custody flows, and compliance hooks as native constraints.
  • Cryptography or financial-engineering background.
  • Institutional finance background. Capital-markets microstructure, custody, compliance flows, RWA tokenization, settlement.
  • Hands-on experience with other non-EVM ecosystems. Starknet, Stellar/Soroban, Arbitrum Stylus, Aptos, Move-based chains.
  • Open-source contributions to widely-used libraries in the smart-contract or AI-tooling space.

Benefits

  • Take the time you need with flexible time off 🏝
  • Grow your family with 8 weeks of paid leave for primary caregivers
  • 600 baby bonus 💙
  • Stay covered with medical insurance 🏥
  • Keep growing with learning and development opportunities 🧠
  • Get a monthly stipend for your preferred co-working space 💻
Reddit

Engineering Manager, Ads ML Efficiency

Reddit👥 1001 - 5000 employees🏢 Online Community/social Media
🔥 5 hours ago

As the Engineering Manager for Ads ML Efficiency, you will lead a team focused on optimizing model training and inference to enhance performance and scalability.

Machine LearningModel OptimizationSystems OptimizationGPU Utilization

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