Senior Mobile Engineer - React Native (Remote)

Upstart; United States; On-site; USD 142,000 - 196,600; Full time

Benefits offered by this job

Competitive compensation

401k with company match

Health coverage

Job summary

Upstart is seeking a Senior Mobile Engineer to design and build high‑quality mobile apps using React Native, with iOS and Android expansion on the horizon. You’ll work closely with product, design, and backend teams to deliver features that delight users and align with company goals.

We value pragmatism, quality, and impact in a fast‑moving, digital‑first environment. Remote by default, with onsite collaboration opportunities in Bay Area, Austin, Columbus, and New York City (opening Summer

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or Mathematics, or its equivalent + 4 years of experience.
• Experience building in React Native and familiarity with at least one native platform (iOS or Android).
• Understand mobile performance and platform constraints; communicate effectively with cross-functional partners.

Responsibilities

• Build and maintain user‑facing features in React Native mobile apps across iOS (and Android, as we expand).
• Design and implement mobile components and subsystems that are performant, maintainable, and scalable across platforms.
• Collaborate with product and design teams to scope, implement, and launch features that align with user and business needs.
• Contribute to platform improvements, including tooling, testing strategies, CI/CD, and performance monitoring.
• Work with backend engineers to define mobile‑specific APIs and improve client‑server integration patterns.
• Identify and resolve performance or reliability issues in the mobile experience.
• Participate in code reviews, architecture discussions, and technical planning to raise engineering quality across the team.
• Support a strong mobile engineering culture through mentorship, collaboration, and a focus on continuous improvement.

Skills

React Native

Native iOS/Android

Performance optimization

CI/CD

Mentoring

Education

Bachelor’s degree in CS/Engineering/Math

Tools

Swift/Obj-C

Kotlin/Java

React Native

Job description

Upstart is seeking a Senior Mobile Engineer to design and build high‑quality mobile apps using React Native, with iOS and Android expansion on the horizon. You’ll work closely with product, design, and backend teams to deliver features that delight users and align with company goals.

We value pragmatism, quality, and impact in a fast‑moving, digital‑first environment. Remote by default, with onsite collaboration opportunities in Bay Area, Austin, Columbus, and New York City (opening Summer