Senior Software Engineer, iOS

Team

Join Tools for Humanity (TFH), building World — a real human network designed to accelerate people in the age of AI. With over 17 million verified people across 160 countries, World is already running at global scale. You'll work with team members from OpenAI, Tesla, SpaceX, Apple, Google, Stripe, Meta, Coinbase, Palantir, and MIT Media Lab, backed by top investors.

Responsibilities

• Drive the growth of World ID and World App by introducing new verification methods, simplifying enrollment, and enabling seamless account management
• Support real-world use cases by developing product features, SDKs, cloud integrations, and privacy-preserving solutions
• Build core technologies and infrastructure to optimize security, privacy, compliance, reliability, and development velocity
• Advance open and decentralized platform for empowering third-party developers to integrate World
• Take ownership of key software components — designing, building, debugging, scaling, and maintaining them
• Work closely with product managers, designers, engineers, and other stakeholders to deliver impactful solutions

Requirements

• Designing and developing natively for iOS for some time
• Track record of writing exceptional software, tackling hard problems, and coming up with elegant solutions
• Strong collaboration, prioritization, and organization skills
• Ability to operate in ambiguous and changing conditions, identifying and relentlessly focusing on most important things
• Demonstrable history of picking up, mastering, and applying new knowledge and skills
• Clear, crisp, and simple written and verbal communication
• Experience voicing customer feedback into product solutions (engineering makes substantive contributions to product definition)
• Interest in and passion for finance, privacy, and digital identity

Benefits

• Healthcare, dental, vision coverage
• 401(k) plan with match
• Life insurance
• Flexible time off
• Commuter benefits
• Professional development stipend
• Competitive long-term incentive package
• Opportunity to work at intersection of AI, identity, cryptography, and global-scale hardware deployment
• Work on products featured in TIME Magazine, Fast Company, Bloomberg, New York Times
• Impact 17M+ verified users globally
• World-class team with experience from top tech companies
• Equal opportunity employer with commitment to diversity and inclusion
• Accommodations available for disabilities
• Privacy-conscious organization with GDPR compliance