Principal Full Stack Engineer (Web & Mobile)

• Titan is looking for a Principal Full Stack Engineer who can ship end-to-end features that span web and mobile surfaces
• You’ll partner closely with Product, Design, and Backend teams to deliver seamless user experiences across both React (web) and React Native (mobile) applications
• Build and maintain customer-facing products using React (web) and React Native (mobile)
• Implement features end-to-end: frontend UI, backend API integration, data management, and performance optimization
• Collaborate with product designers to create intuitive, responsive UX across multiple platforms
• Identify opportunities to reuse components and unify shared UI patterns and tooling
• Ensure stability and high performance on both web and mobile through testing, metrics, and monitoring
• Contribute to backend endpoints where needed to support frontend features
• Advocate for scalable front-end architecture and clean, maintainable code

Benefits

• Exceptional health & dental coverage for you & your family, with all/majority of the premium covered
• We invest in your future on day 1 with a 401(k) match up to 4% of your salary
• Flexible PTO & sick days to relax, recharge, and pursue your passions
• Monthly internet, health & wellness and a one time work-from-home setup stipend
• Up to 16 weeks of paid leave to our new parents
• Gourmet meals delivered 3 times a week on in-office days
• Mac/PC laptop provided for all employees

• The ideal candidate thrives on solving real, user-facing problems with elegant design and engineering excellence
• 6 + years of professional experience building full stack applications
• Experience integrating with backend services, RESTful APIs, and real-time data updates
• Excellent communication skills and ability to partner with product and design teams
• Expert in JavaScript / TypeScript with hands-on experience in React and React Native
• Familiarity with mobile-first design principles and web/mobile performance considerations
• Comfortable operating across frontend and backend boundaries to ship cohesive products
• Contributions to React or React Native open-source libraries
• Experience in fintech or regulated systems with strict reliability expectations
• Past work on consumer apps with rapid release cadences
• Thought leadership on frontend architecture and tooling