Senior Software Engineer, Mobile

$250,000 - $300,000
Full-Time / Onsite

About The Role

Are you ready to dive into the exciting world of Mochi Health? As our first Senior Mobile Engineer, you’ll play a vital role in developing and maintaining our core mobile applications. You’ll help drive technical decisions that ensure our mobile platform is scalable, secure, and reliable, delivering an exceptional experience to our users. At Mochi, you’ll join a fast-paced environment where no two days are the same. We thrive on new ideas and close collaboration, and we’re looking for an engineer who pairs strong mobile expertise with a passion for user experience and a desire to make an impact in the healthcare space.

What You’ll Do

• Contribute to key architectural decisions for our React Native applications


• Build and ship new features at high velocity and quality, ensuring seamless performance and reliability on both iOS and Android.


• Oversee and manage native module development and integrations to support smart devices and advanced features.


• Identify and implement mobile-specific engineering process improvements, coding best practices, and tooling enhancements.


• Guide and mentor engineering peers in the world of mobile development, maintaining high standards for code quality, testing, and technical documentation.


• Work closely with product, design, and the broader engineering team to contribute to core mobile facing product initiatives, from ideation to implementation.


• Produce well-structured, well-documented code with detailed specifications, ensuring maintainability and scalability.

Who You Are

• Educational Background: BS in Computer Science or equivalent.Industry


• Experience: 5+ years of industry experience building large-scale mobile applications, preferably in a startup environment.


• React Native Proficiency: Deep knowledge of React Native, including the lifecycle, state management, and experience using Expo for builds and services.


• Native Development: Experience with Swift (iOS) and Kotlin (Android) to create or maintain native modules.


• Autonomy & Ambiguity: Comfortable taking ownership of complex projects and working in fast-changing or unclear situations.


• Communication Skills: Excellent verbal and written communication skills, thriving in collaborative team environments.


• Location: Excited to work in-person with our team in San Francisco.

Life at Mochi 💫

At Mochi, we believe your best work happens when you feel your best—so we’ve designed an environment that fuels your creativity, supports your growth, and makes every day exciting.

🥗 ALL MEALS CATERED – five days a week, breakfast lunch and dinner professionally catered. On-site Barista for unlimited espresso/matcha bar.

💰 Transport’s on us – Transportation benefits to make commuting painless

💣 Profitable & Explosive Growth – Our growth is like trying to drink from a firehose while riding a rocket, as we commit to decisions that ensure long-term success, stability, and the well-being of our team and customers—all without the constraints of VC funding.

🚀 High-Impact Work – Be part of shaping the future of digital healthcare during an exciting period of growth and innovation.

👩‍💻 World-Class Team – Join a team of ex-Tesla, Citadel, SpaceX, Harvard, Princeton, Yale, Dartmouth, IIT across engineering, product, clinical, operations, and beyond—each bringing excellence and empathy to the table.

✨ All the standard bits –401(k) match, unlimited PTO, fully covered life insurance, super primo medical dental and vision for our injury prone team.

💸 Competitive Compensation – We offer a top-of-market salary and a generous equity package—because you deserve to share in the upside you help create.

📍 Prime Location – Our vibrant downtown San Francisco HQ is just steps from public transit, great coffee shops, and everything the city has to offer.

#LI-Onsite #LI-BC

The base salary for this full-time position ranges from $250,000 to $300,000, in addition to equity and benefits. The salary range listed in each job posting represents the minimum and maximum targets for new hire salaries across all locations. Actual compensation within this range is determined by various factors, such as job-related skills, experience, relevant education or training, and location.