Founded in 2015 with the mission to protect the open economy, OpenZeppelin is the world leader in securing blockchain applications and smart contracts.
Its bedrock open source Contract Libraries are a public good and industry standard for smart contract development.
OpenZeppelin’s professional expertise, unified with the Defender developer security platform, integrates through clients’ development lifecycles, so teams can plan, code, audit, deploy and operate projects faster and more safely.
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 Zero-Knowledge Practice at OpenZeppelin is responsible for the execution and delivery of cryptography audits and circuit audits for the world’s leading web3 organizations and protocols. The team currently consists of security researchers, applied cryptographers and theoretical cryptographers who perform audits and advisory with direct client contact and conduct independent zk-research that culminates in academic publications [example], blog posts and conference talks.
We are now looking to expand this team by one additional applied cryptographer!
Hands-on line-by-line investigation of STARK/FRI source code to analyze the security of cryptographic components in support of succinct and/or zero-knowledge proofs for blockchain protocols.
Theoretical investigations of cryptographic security based on a deep understanding of mathematical primitives (e.g. group order, secure hash functions, roots of unity, elliptic curve operations).
Teaming up with other auditors to review Rust and/or Solidity code bases line by line to try to break them.
Researching how to secure the implementation of new mathematical approaches or novel cryptography research available in academia.
Educating the community about zero-knowledge technology and relevant security considerations through series of blog posts.
Leading research and contributing to OpenZeppelin’s projects and knowledge bases.
Training new team members in zero-knowledge technology.
Speaking at ZK conferences around the world.
Academic knowledge in cryptography, computer science, mathematics, engineering, or related fields.
In-depth algorithmical and mathematical understanding of zero-knowledge proof systems and related cryptographic primitives, especially STARK/FRI.
Experience implementing cryptographic components in one or more of: Rust, Go/Golang, Solidity.
Intellectual curiosity and the capability to learn complex topics independently.
An advanced English level and great communication skills (oral and written).
The ability to work independently, with minimal supervision.
Passion about the blockchain space and decentralization.
Ability to work collaboratively in a distributed team.
Experience analyzing the security of blockchain protocols.
Experience contributing to a major ZK library (e.g. Halo2).
In-depth knowledge of implementations of elliptic curve cryptography.
Experience working with L2 scaling protocols or privacy applications.
Experience participating in ZK-themed CTF competitions.
Our interview process takes place on Zoom and tends to consist of the following stages:
Recruiter call (45 minutes)
Hiring Manager call (45 minutes)
Team member interview (60 minutes)
Paid work test (Lasting up to 10 days)
Reference checks
Please let us know if you require any accommodations for the interview process, and we’ll do our best to provide assistance.
At OpenZeppelin, we are an equal opportunity employer and we value different perspectives. We are committed to building a diverse workforce. This includes but is not limited to gender, race, sexual orientation, religion, national origin and other characteristics that make each one of us unique. In this uniqueness, we find the most value. Come join us!
