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About the Company:

Worldcoin is an open-source protocol, supported by a global community of developers, individuals, economists and technologists committed to expanding participation in, and access to, the global economy. Its community is united around core beliefs in the inherent worth and equality of every individual, the right to personal privacy, and open and public collaboration. These beliefs are reflected in what the community is building: a public utility to connect everyone to the global economy.

The Worldcoin Foundation is the protocol’s steward and will support and grow the Worldcoin community until it becomes self-sufficient. Tools for Humanity is a global hardware and software development company. It helped launch Worldcoin and continues to provide support to the Foundation, in addition to operating the World App.

About the Opportunity:

We are looking for developers to support the blockchain team working on the protocol. Worldcoin uses a combination of multiple layer twos to issue every user a proof-of-personhood in a trustless and privacy-preserving way, and also allow them to claim and use their tokens in the existing crypto ecosystem. This requires working on the edge of current research in the areas of blockchain scalability and applied cryptography.

As part of the blockchain team you would:

• Work on the layer two sequencer and smart contract implementations 
• Deploy and support a blockchain system in production, on the scale of hundreds of millions to billions of users
• Support the development of client SDKs for users and developers
• Work together with other teams building on our wallet and proof-of-personhood infrastructure
• Develop and contribute to open-source

About You:

• Experience with Rust, Solidity, and optionally Typescript
• Basic knowledge of blockchain fundamentals, scalability, and the EVM
• Experience with Docker and Kubernetes preferred, but not required
• Optimally, experience in applied cryptography (ZKPs), but not required