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.

We are looking for a UX Design Lead to own the end-to-end user experience for our biometric iris-verification ecosystem. This role spans the full journey of both the person being scanned and the device operator who facilitates verification across a global deployment environment. You will shape every touchpoint—physical, digital, audio, and environmental—and ensure a seamless, intuitive, and trustworthy experience.

As a senior member of the Design Lab, you will drive research, concept development, new product introduction, and ongoing support for millions of in-field devices. You will work closely with industrial design, hardware engineering, software, research, operations, and leadership to bring world-class experiences to life.

• End-to-End Experience
• Define and evolve the complete experience for participants and operators across all contexts of use.
• Create unified experience principles and frameworks that scale across product lines, regions, and user profiles.
• Physical Touchpoints
• Content, cues, and instructional elements on:
• Out-of-box experience (OOBE)
• Device surfaces and enclosure
• Device stands, accessories, and deployment environments
• Digital Touchpoints
• UX for all digital surfaces, including:
• On-device UI
• Remote displays and operator consoles
• Mobile apps
• Web flows
• Multi-Sensory Cues
• Design and specify:
• Audio cues and sound design
• Lighting cues and behaviors
• Haptics or physical feedback
• Research & Insight Development
• Plan and conduct user research with participants, operators, and deployment partners.
• Translate insights into product requirements, prototypes, service flows, and design guidelines.
• New Product Introduction (NPI)
• Lead UX development from concept through launch for new hardware and software products.
• Partner with engineering and manufacturing teams to ensure intent is preserved through build stages.
• In-Field Sustaining
• Monitor the performance of the end-to-end experience in real-world deployments.
• Drive iterative improvements to flows, instructions, cues, and physical artifacts based on data and field feedback.

7+ years of UX, service design, or multi-modal experience design, ideally with hardware + software products.

• A strong portfolio demonstrating end-to-end systems thinking and multi-touchpoint experience design.


• Expertise in designing experiences that blend physical, digital, and sensory inputs.


• Hands-on prototyping skills (Figma, motion, audio, physical mockups).


• Ability to lead research, synthesize complex data, and drive alignment across cross-functional teams.


• Experience working closely with hardware engineering, ID, firmware, and product teams is a plus.


• Comfortable working in a fast-paced, iterative environment with high ambiguity.

Pay transparency statement (for CA and NY based roles):
The reasonably estimated salary for this role at TFH in San Francisco ranges from $221,000 - $260,000 , plus a competitive long term incentive package, and may include variable compensation. 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 and mental health benefits, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more!