Mobile Application Engineer

Hume AI is seeking an experienced and motivated Mobile Application Engineer to advance our core mission: using the world’s most advanced technology for emotion understanding to build empathy and goal-alignment into AI. Join us in the heart of New York City or Silicon Valley, or wherever you are located, and contribute to our endeavor to ensure that AI is guided by human values, the most pivotal challenge (and opportunity) of the 21st century.

About Us

Hume AI is dedicated to building artificial intelligence that is directly optimized for human well-being. We have just raised a Series B funding round and are working on the next generation of our flagship product, a foundational audio-language model that drives an empathic AI assistant for any application.

Our model understands subtle tones of voice, word emphasis, facial expression, and more, along with the reactions of listeners. These behaviors reveal our preferences—whether we find things interesting or boring; satisfying or frustrating; funny, eloquent, or dubious. We call learning from these signals “reinforcement learning from human expression” (RLHE). AI models trained with RLHE can serve as better question answerers, copywriters, tutors, call center agents, and more, even in text-only interfaces.

Our goal is to enable a future in which technology draws on an understanding of human emotional expression to better serve human goals. As part of our mission, we also conduct groundbreaking scientific research, publish in leading scientific journals like Nature, and support a non-profit, The Hume Initiative, that has released the first concrete ethical guidelines for empathic AI (www.thehumeinitiative.org). You can learn more about us on our website (https://hume.ai/) and read about us in Forbes, Axios, and The Washington Post.

About the Role

As a Mobile Application Engineer, you will work closely with our team of research scientists, engineers, and designers to build our consumer mobile applications, making our powerful AI solutions accessible to users with varying degrees of technical sophistication through cutting-edge tools.

Responsibilities

• Lead customer-facing initiatives by contributing new features to our cross platform mobile applications (iOS, Android, macOS, Desktop) while maintaining high standards of excellence.
• Work autonomously to maintain and identify areas of improvement for existing code and tests.
• Identify areas for improvement within the existing codebase that reduce code complexity and improve overall performance of mobile applications.
• Build internal tools to help facilitate prototyping, maintenance, and quality of the codebase.
• Mentor junior engineers and help provide documentation and resources for onboarding coworkers to new features and components.
• Collaborate closely with our design, product, backend, and research teams.

Requirements

• 6-10 years of experience in developing mobile applications.
• Proficiency with a modern mobile development stack (e.g., React Native, Swift, Kotlin, etc.).
• Expertise in modern mobile best practices, including accessibility, performance optimization, and user experience.
• Proficiency with tools like debuggers, profilers, and performance monitoring to identify areas of improvement.
• Proficiency with tools for automated testing and CI/CD (such as XCTest, Espresso, Fastlane, GitHub Actions).
• Excellent communication and collaboration skills.
• Experience with iOS development using Swift and Objective-C.

Bonus

• Experience with audio processing
• Experience with real time communication applications
• Experience with mobile graphics engines
• Experience with Android development