Blockchain Protocol Cryptographer

Who are they?

Zama’s mission is to safeguard privacy by making the internet encrypted end-to-end.

Zama is building a suite of products for securing AI applications in the cloud and on the blockchain. Developers and data scientists can build FHE-friendly applications using our technology without having to know cryptography.

Zama was founded by Pascal Paillier, a pioneer in FHE, and Rand Hindi, a serial privacy entrepreneur.

If you would like to learn more about Fully Homomorphic Encryption, you can read our 6-min introduction.

Job description

Zama’s mission is to safeguard privacy by making the internet encrypted end-to-end. Zama’s products help web2 and web3 developers build private-by-design applications using homomorphic encryption (FHE), without having to learn cryptography.

Zama was founded by Pascal Paillier, a pioneer in FHE, and Ra nd Hindi, a serial privacy entrepreneur, and has a team of veteran cryptographers, including Nigel Smart, Marc Joye, Ilaria Chillotti and others.

As part of our efforts bringing privacy to web3, we are building a homomorphic blockchain protocol that enables private smart contracts, where computation happens on-chain on encrypted shared states.

Role Description

We’re looking for a Protocol Cryptographer with a strong background in cryptography and blockchain, capable of designing and implementing complex cryptographic protocols that combines FHE, ZK and blockchain. You will be working alongside a team of cryptographers, blockchain engineers and full-stack engineers to design, implement and launch Zama’s homomorphic blockchain.

Your job as a Protocol Cryptographer will be to:

• Design, validate and prototype the overall protocol of the Zama blockchain


• Build security proofs of the protocol


• Improve the security and design of the protocol according to product directions


• Publish papers and documentation to guide developers and researchers in our ecosystem

Preferred experience

He / She / They should have:

• Strong experience working on blockchain protocols that implement smart contracts


• Knowledge of homomorphic encryption


• Knowledge of zero-knowledge proofs


• A passion for open source and blockchain


• A friendly team player spirit


• An obsession with making things that actually work for users

Bonus points if you have:

• A PhD in Computer Science or equivalent


• Participated in the creation of a new protocol from scratch


• We are a full remote company but you should ideally be in an European time zone.

Recruitment process

Our process is described in detail here.

Zama values and promotes diversity. We give everyone a fair chance to be evaluated on their mix of professional, academic, and personal skills. Our aim is to make the hiring process as pleasant, stress-free, and friendly as possible, even if the process is longer and more involved than you might find elsewhere.