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Engine

Principal Architect, React Native/Mobile

Engine, San Francisco, California, United States, 94199

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Principal Architect – Mobile Team (React Native) At Engine, we’re transforming business travel into something personalized, rewarding, and simple. For too long, managing travel and spend has been overwhelming and fragmented — we’re here to change that. We believe the future of travel should be seamless and powered by technology that delights customers at every step. That’s why we’re building a platform that brings together corporate travel, a powerful charge card, and modern spend management in one place.

Your Mission We are looking for a

Principal Architect

to serve as the most senior hands‑on technical leader on our mobile team. In this role, you’ll shape the long‑term mobile vision, drive technical excellence, and work cross‑functionally to ensure a seamless, unified experience between our mobile and web platforms.

What you’ll do

Lead technical direction and long‑term architectural vision for our mobile applications (built primarily in React Native)

Act as the principal hands‑on contributor, setting standards for engineering quality, performance, and scalability

Drive alignment across mobile and web teams to ensure a consistent and unified user experience

Collaborate with product and design leadership to shape strategy, execution plans, and sequencing for major mobile initiatives

Establish scalable patterns, frameworks, and development standards across the mobile organization

Partner with design and platform engineering on system‑wide initiatives such as shared components, navigation, and design systems

Champion engineering excellence through architecture reviews, performance optimization, and technical rigor

Identify and mitigate technical risks while fostering innovation and experimentation

Mentor Staff and Senior Engineers, providing technical guidance and helping to grow future leaders

Act as a mobile subject‑matter expert across the broader organization

What you’ll bring

8–12+ years of experience building and shipping high‑quality mobile applications at scale

Deep expertise with React Native and experience designing large, production‑grade applications

Strong understanding of mobile architecture, performance tuning, and platform best practices

Experience with native iOS (Swift/SwiftUI) and/or Android (Kotlin/Jetpack) development is a strong plus

Proven ability to lead technical initiatives and influence cross‑functional teams

Strong systems thinking and a bias toward scalable frameworks and reusable patterns

Experience mentoring Staff and Senior Engineers and shaping technical culture

Excellent communication skills and the ability to drive clarity and alignment across teams

Compensation Base Pay Range $174,845—$242,000 USD Equity and variable pay (OTE) will be shared as you move through the process.

The Engine Edge: Perks & Compensation

Compensation:

Competitive base pay tied to role and experience, with opportunities for bonuses, commissions, and equity.

Benefits:

Check out our full list at engine.com/culture.

Environments for Success:

Hybrid‑hub model. Whether you are in one of our amazing offices or fully remote, we’ll make sure you have what you need to succeed.

Ready to Build the Future of Work Travel? Join us on our mission to transform how work travel works—for businesses, for travelers, and for the industry. Apply now and let’s make travel simpler, smarter, and more enjoyable—together.

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