Upstart

Senior Software Engineer, Mobile

United States | Remote · Senior

Sponsorship not specified$167k-$231kDetected 7 days ago

JavaSwiftKotlinReactReact NativeiOSAndroidObjective-CCode ReviewSparkA/B TestingCadenceCollaborationMentoring

About the role

Every day, we bring creativity, experimentation, and advanced AI to reshape access to credit, helping millions move forward financially with clarity and confidence.
But the numbers only hint at the impact.
Every idea, every voice, and every contribution moves us closer to a world where credit never stands between people and their financial progress.

Build and maintain user-facing features in our React Native mobile apps across iOS and Android.
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.
Support a strong mobile engineering culture through mentorship, collaboration, and a focus on continuous improvement.
As the leading AI lending marketplace, we partner with banks and credit unions to expand access to affordable credit through technology that's both radically intelligent and deeply human.
And whether you choose to work primarily from home or collaborate in-person from one of our offices in Columbus, Austin, the Bay Area, or New York City (opening Summer 2026), you'll have the support to work in the way that works best for you.

Bachelor's degree in Computer Science, Engineering, or Mathematics, or a related field (or its equivalent) and 4 years of experience.

Have helped launch or scale a React Native app on the Android platform.
Have experience with mobile analytics, push notifications, deep linking, or A/B testing frameworks.
Have worked in a fast-paced product company where mobile was a primary user touchpoint.
Time zone requirements The team operates on the East/West coast time zones.
Travel requirements As a digital first company, the majority of your work can be accomplished remotely.
The majority of our employees can live and work anywhere in the U.S but are encouraged to to still spend high quality time in-person collaborating via regular onsites.
The in-person sessions' cadence varies depending on the team and role
most teams meet once or twice per quarter for 2-4 consecutive days at a time.

Individual pay is also determined by job-related skills, experience, and relevant education or training.

At Upstart, your base pay is one part of your total compensation package.
The anticipated base salary for this position is expected to be within the below range.
United States | Remote - Anticipated Base Salary Range
$166,900 - $230,900 USD

In addition, Upstart provides employees with target bonuses, equity compensation, and generous benefits packages (including medical, dental, vision, and 401k).

Upstart's Borrower Experience team is responsible for building and evolving the borrower-facing servicing experience across web, mobile, and AI-powered channels.
The team focuses on reducing borrower friction, improving payment success, and enabling clear, self-serve paths for borrowers post-origination.
As a Senior Mobile Engineer at Upstart, you will help design and build high-quality mobile applications using React Native.
In this role, you will directly influence core servicing metrics such as Adjusted Payment Success Rate, Contact Rate, Borrower Friction/Satisfaction, and Loan Performance.
You will also collaborate closely with product managers, designers, and backend engineers to deliver mobile features that delight users and align with company goals.
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.
As a digital first company, the majority of your work can be accomplished remotely.
Our platform runs over one million predictions per borrower using more than 1,800 signals, powering smarter, fairer decisions for millions of customers.

This listing is sourced directly from Upstart's careers page and normalized into a canonical job model.