Senior Mobile Software Engineer at Upstart

**Who this is for** This role is for a Senior Mobile Software Engineer who is passionate about building high-quality, scalable mobile applications using React N

Work type: remote

Location: United States | Remote

Salary: $166,900 – $230,900/yr

Type: Full-time

Summary

**Who this is for** This role is for a Senior Mobile Software Engineer who is passionate about building high-quality, scalable mobile applications using React Native and wants to contribute to the expansion of Upstart's mobile platform. **Key highlights** You will design and build user-facing features for Upstart's mobile applications, collaborating closely with product, design, and backend teams. The focus is on hands-on execution, owning technical decisions, and improving the overall mobile platform. **You might be a good fit if you...** - Have experience building in React Native and familiarity with at least one native platform (Swift/Objective-C or Kotlin/Java). - Understand mobile performance, memory management, and platform-specific best practices. - Are adept at collaborating with cross-functional teams to deliver features. - Are interested in contributing to platform improvements, including tooling and testing strategies.

Job Description

About Upstart

At Upstart, we’re united by a mission that matters: to radically reduce the cost and complexity of borrowing for all Americans. Every day, we bring creativity, experimentation, and advanced AI to reshape access to credit, helping millions move forward financially with clarity and confidence.

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. Our platform runs over one million predictions per borrower using more than 1,800 signals, powering smarter, fairer decisions for millions of customers. 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.

We’re proudly digital-first, giving most Upstarters the flexibility to do their best work from wherever they thrive, alongside teammates across 80+ cities in the US and Canada. Digital-first doesn’t mean distant. We’re intentional about in-person connection through team onsites, planning sessions, and moments that spark creativity and trust. 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.

If you’re energized by tackling meaningful problems, excited to innovate with purpose, and motivated by work that truly matters, we’d love to hear from you.

### The Role

As a Senior Mobile Software Engineer at Upstart, you’ll help design and build scalable, high-quality mobile applications using React Native. You’ll collaborate closely with product managers, designers, and backend engineers to deliver features that delight users and align with company goals.

This is a hands-on, execution-focused role for an experienced engineer who wants to ship features, own technical decisions, and improve our mobile platform. You’ll contribute to engineering quality through thoughtful system design, code review, and a focus on long-term maintainability.

### The Team

The Mobile team at Upstart is building the future of our user experience. Our mobile codebase is React Native-first, and we’re in the early stages of expanding from iOS into Android. Our work spans user-facing features, performance optimization, platform tooling, and tight collaboration with backend and design partners.

We’re a fast-moving team that values pragmatism, quality, and impact — and we’re laying the foundation for a scalable and user-first mobile platform.

### What You’ll Do

• Build and maintain user-facing features in our 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.

• Bachelor’s degree in Computer Science, Engineering, or Mathematics, or a related field (or its equivalent) + 4 years of experience

• Have experience building in React Native, and familiarity with at least one native platform (e.g., Swift/Objective-C for iOS or Kotlin/Java for Android).

• Understand mobile performance, memory management, and platform-specific constraints.

• Communicate effectively with cross-functional partners in product, design, and backend engineering.

• Take ownership of your work and are comfortable delivering complex features from planning through release.

• Balance speed and quality, and advocate for maintainable, scalable engineering solutions.

• Contribute to team culture and engineering practices through feedback, mentoring, and collaboration.

• Embrace a growth mindset and enjoy learning from others while helping teammates grow.

• Have helped launch or scale a React Native app on the Android platform.

• Are comfortable working with TypeScript or custom native modules.

• 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.

• Have contributed to internal tools, processes, or systems that improved mobile developer velocity or code quality.

Time Zone Requirements - This team operates across all U.S. time zones.

Travel Requirements - This team has regular on-site collaboration sessions. These occur 3 days per quarter at an Upstart office. If you need to travel to make these meetups, Upstart will cover all travel related expenses.

#LI-REMOTE

#LI-MidSenior

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. Your actual base pay will depend on your geographic location–with our “digital first” philosophy, Upstart uses compensation regions that vary depending on location. Individual pay is also determined by job-related skills, experience, and relevant education or training. Your recruiter can share more about the specific salary range for your preferred location during the hiring process.

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

United States | Remote - Anticipated Base Salary Range
$166,900—$230,900 USD

What you'll love

At Upstart, our benefits are designed to support your health, financial well-being, family, and personal growth. Here’s what you can expect:

• Competitive compensation, including base pay, bonus opportunities, and annual equity grants that vest quarterly

• Generous 401(k) plan with Upstart matching $2 for every $1 contributed, up to $15,000 per year

• Employee Stock Purchase Plan (ESPP) with discounted stock purchase options for eligible employees

• Affordable medical, dental, and vision coverage, with multiple plan options - Upstart covers 90% to 100% of the cost depending on the plans you choose

• Health Savings Account contributions from Upstart for eligible plans

• Income protection benefits, including company-paid Basic Life, AD&D, and Short- and Long-Term Disability coverage, with options to purchase supplemental coverage

• Paid time off, sick and safe time, and company holidays

• Paid family and parental leave to support caregiving and major life moments

• Family-centered benefits through Carrot and Cleo, supporting fertility, parenthood, and caregiving

• Employee Assistance Program (EAP) offering mental health support and life-centered resources

• Financial wellness resources, including access to financial planning tools and a financial concierge service

• Annual wellness allowance to support your physical and emotional well-being and personal development, based on what matters most to you

• Annual productivity allowance to invest in relevant tools and resources you need to do your best work, no matter where you work from

• Connection and community through team events and onsites, all-company updates, and employee resource groups (ERGs)

• Onsite perks, including catered lunches and fully stocked micro-kitchens when working from one of our four offices, located in the Bay Area, Austin, Columbus, and New York City (opening Summer 2026!).

If you require reasonable accommodation in completing an application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please email[candidate_accommodations@upstart.com](mailto:candidate_accommodations@upstart.com)

[https://www.upstart.com/candidate_privacy_policy](https://www.upstart.com/candidate_privacy_policy)

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