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About the Role

The Mobile Foundations team builds and evolves the shared architecture, libraries, and tooling that power Airwallex's fully native iOS and Android apps, enabling businesses to manage global B2B payments, expenses, and cards. This role will lead the technical direction of the mobile platform, design and evolve the core architecture, and own critical shared components.

Responsibilities

Define and evolve mobile architecture, including navigation, state management, networking, offline strategies, and error handling.
Drive modularisation and clear boundaries between foundation modules and product features.
Own and maintain shared libraries and frameworks (e.g., design system components, analytics, feature flags, experimentation, authentication, payments, observability).
Be responsible for the application's authentication and authorization mechanisms.
Ensure components are stable, well-documented, and easy to adopt and extend by product teams.
Drive mobile application security, including anti-tampering measures, certificate pinning, and security best practices.
Define and track platform-level metrics such as crash-free sessions, ANRs, app start-up time, bundle size, and network performance.
Partner with product teams to drive initiatives that improve reliability, performance, and overall mobile quality.
Strengthen end-to-end observability across mobile (logging, metrics, tracing, crash reporting) and use data to guide priorities.
Own and continuously improve mobile CI/CD pipelines (e.g., GitHub Actions, Bitrise), reducing build times, flakiness, and friction in releasing features.
Improve developer experience for mobile engineers through tooling, templates, documentation, and automation.
Own the end-to-end mobile release process across iOS and Android, ensuring timely and reliable delivery of new versions.
Establish clear guidelines and lead the on-call rotation for critical platform-level incidents, ensuring rapid response and resolution.
Define, document, and enforce mobile engineering best practices across the organization.
Drive cross-squad projects (e.g., rollout of a new design system, major architectural changes, cross-platform feature foundations) from problem definition through to rollout and adoption.
Align stakeholders (EMs, PMs, designers, backend/platform teams) around technical direction and trade-offs.
Lead by example with clean, testable, well-structured code on either iOS or Android, while setting standards across both platforms.
Provide technical mentorship and guidance to senior and mid-level engineers through design reviews, pairing, and coaching.
Contribute to and influence hiring, onboarding, and the growth of the mobile engineering community at Airwallex.

Requirements

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 iOS: Swift, SwiftUI, Combine, async/await, or Android: Kotlin, AndroidX, Jetpack, Coroutines, Hilt with commercial knowledge of both platforms.
Proven track record leading cross-team technical initiatives and evolving mobile architectures (e.g., modularisation, design systems, networking, offline support, or similar).
Strong focus on code quality and reliability: Designs for testability and maintainability.
Writes high-quality automated tests and uses coverage meaningfully.
Experience owning and improving mobile CI/CD pipelines (e.g., GitHub Actions, Bitrise), including build optimisation, test stability, and release workflows.
Demonstrated ability to influence without authority: Aligns engineers, PMs, and designers around technical direction and makes pragmatic trade-offs.
Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
Experience defining and driving a mobile platform roadmap, 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 design systems and component libraries on mobile.
Hands-on experience with analytics, experimentation, and feature flagging on mobile.
Hands-on experience with observability tooling (e.g., Crashlytics, Sentry, logging/metrics platforms).
Experience in domains such as payments, fintech, or B2B SaaS, especially where reliability, security, and regulatory requirements are critical.
Experience mentoring other senior engineers and playing a key role in hiring and growing mobile teams.
Contributions to the mobile community (open source, talks, blog posts) or evidence of thought leadership in mobile architecture and foundations.

Skills

Swift
SwiftUI
Combine
async/await
Kotlin
AndroidX
Jetpack
Coroutines
Hilt
CI/CD
GitHub Actions
Bitrise
Design systems
Analytics
Experimentation
Feature flagging
Observability tooling
Crashlytics
Sentry
Payments
Fintech
B2B SaaS

Location

Singapore
Melbourne
San Francisco

Work Type

Full-time

Experience Level

Staff
Senior

Education Level

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

About the Company

Airwallex is the AI-native financial operating system for a real-time, intelligent economy.
More than 675,000 businesses use Airwallex to run financial operations or build and monetize financial products.
Started in Melbourne in 2015 to build the infrastructure global commerce runs on.
The regulated backbone behind global payments with 85+ licenses and financial infrastructure spanning North America, Europe, the Middle East, and Asia-Pacific.
Co-headquartered in San Francisco and Singapore, with more than 2,700 people across 27 offices.
Hires builders with founder-level energy, who move fast with good judgment, dig in with real curiosity, and make calls from first principles.

Equal Opportunity

Airwallex is proud to be an equal opportunity employer.
Values diversity and considers anyone seeking employment based on merit, qualifications, competence and talent.
Does not 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 hiring decisions.
Provides accommodation for individuals with a disability or special need.