Senior Blockchain Security Developer

Posted 7 hours ago

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About the role

  • Senior Blockchain Security Developer for OpenZeppelin, focusing on the Contracts Library for Daml. Leading technical implementation and working with cross-functional teams on DeFi protocols.

Responsibilities

  • Own the development of the OpenZeppelin Contracts Library for Daml end-to-end.
  • Lead the technical design and implementation of the year-1 Reference Implementations.
  • Implement and shepherd the OZ Daml versions of CIP-56, CIP-86, CIP-103, and CIP-104.
  • Run client-facing roadmap, design, and milestone discussions.
  • Collaborate with OpenZeppelin's auditors and security researchers on threat models.
  • Use AI systems as core daily tools.
  • Apply AI directly to security work and share what works back to the team.
  • Contribute developer-experience and security feedback upstream into the Canton protocol.
  • Conduct open-ended research around privacy-preserving DeFi.

Requirements

  • Production Daml fluency. You have shipped non-trivial Daml in production.
  • 3+ years of experience in UTXO-based protocol development.
  • 3+ years of experience on DeFi engineering in production.
  • A security-first mindset. This is non-negotiable.
  • Library / SDK API design taste. You've built reusable developer libraries.
  • Cross-chain interoperability exposure. Production work with at least one major cross-chain messaging protocol.
  • Institutional / compliance design fluency: You can design with credential gates, multi-party attestation, custody flows, and compliance hooks as native constraints.
  • An AI-native workflow. Claude Code, Cursor, or equivalent is your daily driver.
  • Experience applying AI to security work: You've already used AI in security workflows.
  • Fluency in client-facing communication (English).
  • Autonomy and proactivity.

Benefits

  • Company in-person gatherings in different locations around the world 😎
  • Fully remote work 🌎
  • Flexible time off 🏝
  • Paid parental leave 💙
  • One time work-from-home equipment stipend of up to $500 USD 🪑
  • Medical insurance coverage 🏥
  • Learning & Development opportunities 🧠
  • Work with a global team in a fast-growing industry 🚀

Job type

Full Time

Experience level

Senior

Salary

Not specified

Degree requirement

No Education Requirement

Location requirements

RemoteWorldwide

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