Staff Software Engineer, Mobile (App Infrastructure)

About the Position

We are seeking a Staff Software Engineer, Mobile (App Infrastructure) to join our remote team. You will be responsible for developing and architecting mobile applications using React Native. Our App Infrastructure team owns the shared components of Affirm's mobile app, including design system, networking, observability, CI/CD, and more.

Responsibilities

• Set technical strategy for your team on a year-long time scale and help your team tie it together with critical, business-impacting projects.
• Collaborate across teams in the product development lifecycle by collaborating with product management, design & analytics to ensure technical sustainability, risks, and trade-offs are well understood and managed.
• Act as a force-multiplier for your team through your definition and advocacy of technical solutions and operational processes.
• Take ownership of your team’s operations and availability by ensuring you have the right monitoring, triage rotations, playbooks, policies, testing, and alerting in place to support “keep the lights on” & on-call efforts.
• Foster a culture of quality and ownership on your team by setting code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks.
• Help develop talent on your team by providing feedback and guidance, and leading by example.

Requirements

• 7+ years of experience developing and architecting mobile applications; 4+ using React Native.
• Proficient in working with Javascript/Typescript.
• Hands-on experience with React Native and Expo, and have authored or migrated native modules and components.
• Experience with complex state management in a React app. Proficiency with Redux Toolkit is a bonus.
• Performed React Native SDK major updates, and you can debug across the JS↔native boundary under the New Architecture.
• Stay up-to-date on native OS releases and can anticipate how they land in a React Native app.
• Experience with mobile testing and observability tooling - E2E frameworks like Maestro/Appium, crash reporting Sentry/Crashlytics, and experimentation/feature-flagging platforms like Statsig/LaunchDarkly - and enjoy building tooling other teams actually adopt.
• Proficient and up to date on AI-assisted development - Claude Code or comparable agentic tooling - and apply judgment about where agents help, where they need guardrails, and how to keep the quality bar high.
• Proven track record of driving a team to execute large projects.
• Experience delivering major features, system components, or deprecating existing functionality in a system through the definition of a technical and execution plan. Write high-quality code that is easily understood and used by others.
• Thrive in ambiguity, and are comfortable moving from low-level language idioms all the way to the architecture of large systems to understand how they work.
• Growth and impact trajectory demonstrates that you have mastered gathering and iterating on feedback from your engineering and cross-functional peers.
• Strong verbal and written communication skills that support effective collaboration with our global engineering team.
• Either equivalent practical experience or a Bachelor’s degree in a related field.

We Offer

• Competitive salary range: $204,000 - $290,000 (based on location).
• Equity rewards.
• Monthly stipends for health, wellness, and tech spending.
• Benefits: 100% subsidized medical coverage, dental, and vision for you and your dependents.
• Flexible Spending Wallets for Technology, Food, Lifestyle needs, and family forming expenses.
• Time off: Competitive vacation and holiday schedules.
• ESPP: An employee stock purchase plan enabling you to buy shares of Affirm at a discount.

About the Company

Affirm is proud to be a remote-first company! The majority of our roles are remote, and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.

We’re extremely proud to offer competitive benefits that are anchored to our core value of people coming first. Some key highlights of our benefits package include:

• Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents.
• Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses.
• Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge.
• ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount.

We believe it’s on us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.

[For U.S. positions that could be performed in Los Angeles or San Francisco] Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirm will consider for employment qualified applicants with arrest and conviction records.

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