Remote Lead Mobile Engineer — React Native & Android

Upstart; New York (NY); On-site; USD 197,923 - 267,778; Full time

Benefits offered by this job

Competitive pay

Annual equity grants

401(k) match

Employee stock purchase plan

Health coverage

Job summary

Upstart is seeking a Principal Mobile Engineer for the Unsecured Installment team to own mobile delivery across React Native and native Android. You will drive architecture, mentor others, and enable an ambitious Android launch within a fast‑paced fintech environment.

You’ll collaborate with product and design to deliver scalable mobile solutions, ensuring high performance and quality while shaping long‑term architecture across both RN and Android surfaces.

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 Unsecured Installment team, raising the quality, scalability, and velocity of the team's mobile codebase across small dollar loans and personal loans.
• Lead Android development for the team and help deliver against Upstart's approved Android launch plan this year, translating aggressive 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 unsecured installments mobile stack.

Skills

React Native

TypeScript

Kotlin/Java

Mobile architecture

Leadership

Job description

Upstart is seeking a Principal Mobile Engineer for the Unsecured Installment team to own mobile delivery across React Native and native Android. You will drive architecture, mentor others, and enable an ambitious Android launch within a fast‑paced fintech environment.

You’ll collaborate with product and design to deliver scalable mobile solutions, ensuring high performance and quality while shaping long‑term architecture across both RN and Android surfaces.