Worldcoin (www.worldcoin.org) 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 (www.worldcoin.foundation) is the protocol’s steward and will support and grow the Worldcoin community until it becomes self-sufficient.  Tools for Humanity (www.toolsforhumanity.com)  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.

This role is part of our World App team, which since its launch in July 2023, has grown to 5 million monthly active users globally and is on track to become the largest crypto wallet in the world. The app enables users to obtain their unique Proof of Personhood through World ID, claim Worldcoin Grants in eligible countries, and send money globally for free. World App has processed 60 million transactions since launch making it the largest crypto application on Optimism. We consume more than half of daily gas on Optimism.

This role is based in San Francisco, CA. We are in the office 5 days a week with circumstantial flexibility and offer relocation assistance to new employees.

As a senior software engineer you’ll be designing and building highly scalable systems to support the App. In this role, you will:

• Build end-to-end features of the app: networking, persistence, business logic, and UI
• Craft durable, well-tested code with an unwavering commitment to product quality
• Re-architect legacy code and prep it to scale for the future of the product and the team
• Partner with Android and backend developers on delivering remarkable solutions
• Have a meaningful impact on the future of the World App product
• Invent thoughtful iOS tech and open source it

• Experience leading projects (ex. build or improve customer experiences, product resiliency, or backend integrations)
• Experience creating readable, well-crafted, and maintainable code
• Experience voicing customer feedback into product solutions (engineering makes substantive contributions to product definition)
• A commitment to growing together (yourself, your teammates, your software)
• Passion about practical usage of blockchain technologies. We expect everyone on our team to be familiar and use blockchain products. 
• 2+ years of native iOS development experience

By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR.

Pay transparency statement (for CA and NY based roles):

The reasonably estimated salary for this role at TFH ranges from $216,000 - $240,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits for this role including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more!