Rust Engineer

Worldcoin is a new, collectively owned global currency that will be distributed fairly to as many people as possible. Worldcoin will launch by giving a free share to everyone on Earth. We believe that this is an essential step to accelerate the transition towards a more inclusive global economy, providing new ways for everyone to share future prosperity. We hope you’ll join us on our ambitious journey.

About the Orb

The Orb—arguably the world’s best iris scanner—is a chrome sphere full of optics, computation (CPUs, GPUs, and microcontrollers), and radios for communication with both smartphones and servers in the Cloud. Microcontrollers run an RTOS at the lowest level communicating with hardware like stepper motors and voltage supplies. The CPU has significant security requirements and has a TEE, but our Rust programs run under Ubuntu. The software in Rust is arguably the "heart" of the Orb, where it communicates with the Cloud, a smartphone app, and microcontroller firmware, hence the optical system (by controlling camera focus, gimbals, multispectral imaging sensors, etc.).

About the Team

The IoT Software team writes Orb software and firmware using Rust, C, and Python. Frequent collaborators include the Hardware (bring-up, manufacturing, adding new sensors, etc.), AI (neural networks controlling the autofocus, etc.), and Cloud teams. IoT Software team members are primarily located in Berlin and San Francisco, although some work remotely.

About the Opportunity

A Rust developer has many areas to work in: down, to work with microcontrollers, up, to work with Cloud services, or multi-disciplinary to work with machine learning experts and data scientists (for fraud detection and more). There are many interesting sensors to control as well (3D camera, a thermal imager, and many more). The Orb presents a wide variety of engineering challenges that can be very rewarding and fun to work on.

Given that billions of people will use Orbs, it is essential to give careful attention to a thoughtful and clean design, a great implementation, and extensive testing.

About You

• Deep knowledge of Rust!
• Interest in working with IoT devices like the Orb
• Extensive experience with Unix—ideally Linux
• Familiar with CI/CD practices
• A good understanding of security, or at least a strong desire to develop a "security mindset"
• Enjoy a fast-paced environment with a lot of action
• Excellent transparency, where you love to share details of what you're working on that range from architecture to implementation
• Admiration for team effort with ambition to take the lead on your own projects
• Excitement for the unknown—you’re always ready to learn something new.