[Hiring] Staff Software Engineer, Mobile (App Infrastructure) @Affirm

Role Description

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. App Infrastructure is the team behind Affirm's shared mobile app infrastructure — the platform every other mobile feature team builds on. We own the app’s shared components: design system, networking, observability, experimentation, CI/CD, app releases, developer tooling, availability/stability, and more.

We care about ownership: shipping tools and runbooks other teams actually adopt, writing specs before building, and being the go-to experts for the mobile tech stack. We're small, technical, and highly collaborative.

What You'll Do:

• Set technical strategy for your team on a year-long time scale and help tie it together with critical, business-impacting projects.
• Collaborate across teams in the product development lifecycle 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 definition and advocacy of technical solutions and operational processes.
• Take ownership of your team’s operations and availability by ensuring proper monitoring, triage rotations, playbooks, policies, testing, and alerting are in place.
• Foster a culture of quality and ownership by setting code review and design standards for your team and advocating for them beyond your team.
• Help develop talent on your team by providing feedback and guidance, and leading by example.

Qualifications

• 7+ years of experience developing and architecting mobile applications; 4+ years using React Native.
• Proficient in working with Javascript/Typescript.
• Hands-on experience with React Native and Expo, including authoring or migrating 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 can debug across the JS↔native boundary under the New Architecture.
• Stay up-to-date on native OS releases and 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.
• Proficient and up to date on AI-assisted development — Claude Code or comparable agentic tooling.
• Proven track record of driving a team to execute large projects.
• Experience delivering major features, system components, or deprecating existing functionality through the definition of a technical and execution plan.
• Thrive in ambiguity, comfortable moving from low-level language idioms to the architecture of large systems.
• Growth and impact trajectory demonstrates mastery in gathering and iterating on feedback from engineering and cross-functional peers.
• Strong verbal and written communication skills supporting effective collaboration with a global engineering team.
• This position requires either equivalent practical experience or a Bachelor’s degree in a related field.

Requirements

• Base Pay Grade: P
• Equity Grade: 7
• Base pay range per year: CAD $181,000 - $241,000
• Location: Remote Canada (open only to candidates residing in specific provinces).

Benefits

• 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.