Senior Fraud Engineer

Department: World App

Location: San Francisco

Employment Type: FullTime

About the Company:

Tools for Humanity (TFH) designs and builds technology behind World. World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the internet, people, institutions, and applications need a trusted way to confirm who is a real human while preserving privacy. The TFH and World tech stacks make this possible: the Orb verifies real, unique people, World ID proves it privately, and World App puts these capabilities, and more, in people’s hands. Together, they add a human layer to an AI-driven internet.

World is already running at a global scale. More than 17 million people across 160 countries have verified with World ID, and more new Orb verifications take place each week. World App is already among the most used wallets globally. Developers are integrating World ID to build safer online experiences and create spaces where real people can participate, earn, and be recognized in ways AI simply can’t replicate.

Founded in 2019, TFH has more than 400 people across hardware, software, AI, cryptography, mobile engineering, and global operations. Our teams come from OpenAI, Tesla, SpaceX, Apple, Google, Stripe, Meta, Coinbase, Palantir and MIT Media Lab. We’re backed by leading investors, including a16z, Khosla Ventures, Bain Capital Crypto, Blockchain Capital, Variant, Tiger Global, and Coinbase Ventures, as well as prominent operators and founders across fintech and AI.

TFH and World have been featured on the cover of TIME Magazine, highlighted in Fast Company’s Next 5 in Fintech, and explored in a Bloomberg deep dive. The New York Times, Bankless and TechCrunch have all recognized our collective progress in identity, cryptography, AI, and global-scale hardware deployment. Our leadership is also named to the Time AI 100. Learn more about the newest product launches from our Liftoff event.

About the Team

People spend fifteen seconds with an Orb, but a lifetime with the World App. As such, the App team plays a critical role in fulfilling our mission. Using the App, people can join the World network, participate in decentralized finance in a friendly and self-custodial manner, and use their WorldID to unlock services across the ecosystem.

The intersection of our App and our controls for Fraud, Risk, Safety, and Security are a broad set of integrations and mechanisms to ensure the safety and security of our users and the World network.

This role is a broad position with responsibility across the entire surface of our application and its related systems and tooling.

About the Role:

• Own end-to-end the integrations of our most critical controls and ensuring that their enforcement is neither circumvented nor negatively impacting our users

  • Face Auth, our liveness detection and time-of-use enforcement mechanism

  • Integration with our Fraud Risk Engine

  • Systems that enable our operations teams to respond to user reports and that enforce their actions across our stack

  • SDK/API integrations with external providers

  • Client platform specific features (Android, iOS etc) to prevent misuse.

• Advocate for our users, partnering with our data analytics team and our fraud/risk analytics team to identify false positives and adjust rules and system

• Partner with Product teams to improve the user experience for our users that come into contact with these systems.

• Provide broad review of engineering changes that affect these system

• Accomplish all the above while implementing strict access controls, data retention policies, and minimizing user data collected.

About You:

• Great at cross-functional work, prioritizing, and self-organizing

• Strong technical architecture skills across backend and mobile platforms

• Privacy-minded and capable of adopting an adversarial mindset

• Strong communication skills

• Capable of direct individual contribution across our stack

Nice-to-Have Skills

• Experience in security, fraud, trust & safety, or related domains.

• Mobile development - being comfortable understanding the logic implemented in our Android and iOS applications

• Data analysis and engineering experience - to help you build an understanding the true impact of controls

If you don't think you meet all of the criteria below but still are interested in the job, please apply. Nobody checks every box, and we're looking for someone excited to join the team.

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 $221,000 - $250,000, 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!