Staff Mobile Engineer, Foundation

About Airwallex

Airwallex is the AI-native financial operating system for a real-time, intelligent economy. More than 675,000 businesses, including McLaren Racing, Qantas, SHEIN, and TikTok, use us, directly or through our platform partners, to run their financial operations or build and monetize financial products of their own.

We started in Melbourne in 2015 to build the infrastructure global commerce runs on. We're the regulated backbone behind global payments: not by accident, but by design. A decade plus, 85+ licenses, and a financial infrastructure spanning North America, Europe, the Middle East, and Asia-Pacific.

We're co-headquartered in San Francisco and Singapore, with more than 2,700 people across 27 offices. We hire builders with founder-level energy, people who move fast with good judgment, dig in with real curiosity, and make calls from first principles rather than waiting to be told what to do. Read our operating principles to see it in full.

How you'll make impact

As a Staff Mobile Engineer on the Mobile Foundations team, you’ll lead the technical direction of Airwallex’s native mobile platform across iOS and Android. You’ll shape the architecture, shared libraries, and tooling that help product squads ship faster, more reliably, and with a consistent user experience.

• Define and evolve the shared mobile architecture across navigation, state management, networking, offline strategies, error handling, modularisation, and boundaries between platform foundations and product features.

• Own critical mobile platform capabilities, including design system components, analytics, feature flags, experimentation, authentication, payments, and observability, making them stable, well-documented, and easy for product teams to adopt.

• Improve mobile application security, reliability, performance, and observability through anti-tampering measures, certificate pinning, security best practices, crash reporting, logging, metrics, and tracing.

• Define and track platform-level measures such as crash-free sessions, ANRs, app start-up time, bundle size, and network performance, using data to guide priorities with product teams.

• Own and continuously improve mobile CI/CD pipelines and release workflows across iOS and Android, reducing build times, test flakiness, and friction in shipping new versions.

• Drive cross-squad technical initiatives from problem definition through rollout and adoption, aligning engineering, product, design, and platform stakeholders around technical direction and trade-offs.

• Raise the bar for mobile engineering through hands-on technical leadership, design reviews, mentoring, documentation, automation, best practices, hiring, and community building.

This is a hybrid role based in San Francisco — you’ll be in the office on Monday, Wednesday and Thursday.

What we're looking for

Essentials

• 8–10+ years of experience building native mobile applications on iOS or Android, including at least 3+ years operating at a Senior or Staff level.

• Deep expertise in one native mobile platform: Swift, SwiftUI, Combine, and async/await on iOS, or Kotlin, AndroidX, Jetpack, Coroutines, and Hilt on Android, with commercial knowledge of both platforms.

• A proven track record of leading cross-team technical initiatives and evolving mobile architectures, such as modularisation, design systems, networking, or offline support.

• Strong focus on code quality and reliability, including designing for testability and maintainability and writing high-quality automated tests.

• Experience owning and improving mobile CI/CD pipelines, including build optimisation, test stability, and release workflows using tools such as GitHub Actions or Bitrise.

• Experience driving mobile application security, performance, reliability, observability, or release engineering.

• Demonstrated ability to influence without authority, align engineers, product managers, and designers around technical direction, and make pragmatic trade-offs.

• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

Preferred

• Experience defining and driving a mobile platform roadmap while balancing foundational work with product delivery needs.

• Prior ownership of shared mobile libraries or frameworks used by multiple product teams at scale.

• Hands-on experience with mobile design systems and component libraries.

• Experience with mobile analytics, experimentation, and feature flagging.

• Experience with observability tooling such as Crashlytics, Sentry, or logging and metrics platforms.

• Experience in payments, fintech, or B2B SaaS, especially in environments where reliability, security, and regulatory requirements are critical.

• Experience mentoring senior engineers and contributing to hiring and growing mobile engineering teams.

• Contributions to the mobile community through open source, talks, blog posts, or thought leadership in mobile architecture and foundations.

You'll thrive here if

• You're comfortable owning the roadmap yourself.

• You own the outcome and you don't wait for permission to fix what's broken.

• You’re comfortable operating across time zones with a globally distributed team, including colleagues based in APAC and EMEA.

• You value in-person collaboration and are happy being in the office five days a week.

• You know when to align and when to just decide. Collaboration isn't a way to avoid accountability.

Learn more about your team

The Mobile Foundations team sits at the core of Airwallex’s mobile stack. We build and evolve the shared architecture, libraries, and tooling that power our fully native iOS and Android apps. Our apps help businesses manage global B2B payments, submit and approve expenses, and control both virtual and physical Airwallex cards—complete with seamless Apple Pay and Google Pay integration. On iOS, we work with Swift, SwiftUI, Combine, and async/await. On Android, we use Kotlin, AndroidX, Coroutines, Hilt, and the Jetpack ecosystem. Mobile Foundations is a platform / horizontal team: we don’t just build features, we create the building blocks that enable product squads to ship faster, more reliably, and with a consistent, high-quality user experience.

Applicant Safety Policy: Fraud and Third-Party Recruiters

To protect you from recruitment scams, please be aware that Airwallex will not ask for bank details, sensitive ID numbers (i.e. passport), or any form of payment during the application or interview process. All official communication will come from an @airwallex.com email address. Please apply only through careers.airwallex.com or our official LinkedIn page.

Airwallex does not accept unsolicited resumes from search firms/recruiters. Airwallex will not pay any fees to search firms/recruiters if a candidate is submitted by a search firm/recruiter unless an agreement has been entered into with respect to specific open position(s). Search firms/recruiters submitting resumes to Airwallex on an unsolicited basis shall be deemed to accept this condition, regardless of any other provision to the contrary.

Equal opportunity

Airwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don’t regard color, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status when making our hiring decisions. If you have a disability or special need that requires accommodation, please let us know.