Senior Mobile Engineer (React Native & Android) — Remote

Upstart; United States; On-site; USD 195,000 - 270,000; Full time

Benefits offered by this job

Competitive pay

401(k) matching

ESPP

Health coverage

Paid time off

Wellness allowance

Job summary

Upstart is seeking a Principal Mobile Engineer on the Cash Line team to own the mobile codebase, lead the Android launch, and raise the bar for React Native and native Android surfaces. You’ll set the technical direction and ensure architecture choices scale with product goals.

You’ll collaborate with product, design, and engineering to translate roadmaps into durable mobile solutions, mentor teammates, and drive quality, performance, and reliability across end-to-end mobile experiences.

Qualifications

• 8+ years of software engineering experience, including substantial experience building and shipping mobile applications with React Native and TypeScript.
• Strong native Android depth in Kotlin and/or Java, with experience shipping or launching native Android applications in production.
• Proven track record leading cross-team mobile initiatives, platform migrations, or new mobile product launches in production environments.
• Experience shipping consumer-facing mobile products at scale with strong attention to performance, reliability, and user experience.
• Demonstrated technical leadership as a senior individual contributor, including architecture ownership, mentorship, and influence across teams.

Responsibilities

• Serve as the primary mobile engineer and React Native specialist for the Cash Line team, raising the quality, scalability, and velocity of the team’s mobile codebase.
• Lead Android development for the team and help deliver against Upstart’s approved Android launch plan this year, translating ambitious business goals into pragmatic technical milestones and execution plans.
• Set technical direction for the team’s mobile architecture, evolving a strong foundation across React Native and native Android surfaces.
• Partner closely with product, design, and engineering stakeholders to translate roadmap priorities into durable mobile solutions.
• Raise the bar for engineering excellence through technical leadership, design reviews, mentorship, and pragmatic execution in ambiguous, high-visibility problem spaces.
• After launch, continue as the team’s mobile specialist, bringing broad React Native fluency alongside deep Android expertise to support the full Cash Line mobile stack.

Job description

Upstart is seeking a Principal Mobile Engineer on the Cash Line team to own the mobile codebase, lead the Android launch, and raise the bar for React Native and native Android surfaces. You’ll set the technical direction and ensure architecture choices scale with product goals.

You’ll collaborate with product, design, and engineering to translate roadmaps into durable mobile solutions, mentor teammates, and drive quality, performance, and reliability across end-to-end mobile experiences.