Staff Mobile Engineer, Spend Foundation

Airwallex; Singapore; Hybrid; SGD 180,000 - 280,000; Full time

Job summary

Airwallex is seeking a Staff Mobile Engineer to lead the Mobile Foundations team across iOS and Android. You will shape the core architecture, own shared components, and drive reliability, security, and performance across the mobile stack.

You will mentor engineers, improve CI/CD pipelines, and collaborate with product squads to deliver high-quality native mobile apps used by businesses globally. This role supports Singapore, Melbourne, or San Francisco.

Qualifications

• 8–10+ years building native mobile apps (iOS/Android) with senior/staff experience
• Proven track record leading cross-team technical initiatives and evolving mobile architectures
• Strong focus on code quality and reliability in distributed teams
• Experience owning and improving mobile CI/CD pipelines (GitHub Actions, Bitrise)
• Ability to influence without authority in complex orgs
• Bachelor’s degree in CS/Engineering or equivalent practical experience

Responsibilities

• Define and evolve mobile architecture across iOS and Android
• Own core mobile platform capabilities and shared components
• Improve security, reliability, performance, and observability
• Elevate developer experience and CI/CD practices
• Manage Mobile Release and Operational Health
• Lead cross-team technical initiatives and be a hands-on mentor

Skills

Senior/Staff level

Cross-team leadership

Code quality & reliability

Mobile CI/CD pipelines

Influence without authority

Bachelor’s equivalent practical exp

Education

Bachelor’s degree in CS/Engineering or equivalent

Equivalent practical experience

Tools

GitHub Actions

Bitrise

Job description

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 2,300 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.

About the 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.

This role can be based in Singapore , Melbourne , or San Francisco.

What you’ll do

As a Staff Mobile Engineer on the Mobile Foundations team, you will lead the technical direction of our mobile platform across iOS and Android. You will design and evolve the core architecture, own critical shared components, and act as a multiplier for mobile engineers across product teams.

You will:

• Define and evolve mobile architecture

• Own core mobile platform capabilities

• Improve security, reliability, performance, and observability

• Elevate developer experience, CI/CD

• Manage Mobile Release, Operational Health, and Best Practices

• Lead cross-team technical initiatives

• Be a hands‑on technical leader and mentor

Who you are

We’re looking for people who meet the minimum qualifications below. The preferred qualifications are a strong plus, but not strictly required.

Minimum qualifications

• 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

• 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 :

• 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 :

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

Preferred qualifications

• 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:

• 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.

If you’re excited about shaping the foundations of high-quality native mobile apps used by businesses around the world—and multiplying the impact of every mobile engineer at Airwallex—we’d love to hear from you.

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.

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.