Senior Mobile Engineer (iOS or Android)

Airwallex; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

Airwallex is seeking a Mobile Engineer based in Singapore to build high-quality, user-friendly mobile applications. The successful candidate will collaborate closely with product managers and designers, ensuring a seamless user experience across their iOS and Android platforms. The role involves taking ownership of feature design and implementation, while also influencing the broader engineering strategy as the team scales globally.

Qualifications

• 6+ years experience developing native mobile applications.
• Proven experience shipping production apps available in app stores.
• Strong focus on writing testable code with high coverage.

Responsibilities

• Design and deliver key features across iOS and Android apps.
• Collaborate with engineers to define architecture and best practices.
• Contribute to team processes and broader engineering strategy.

Skills

Code quality

Testable code

CI/CD pipelines

Education

Bachelor’s degree in Computer Science

Tools

AndroidX

Jetpack

SwiftUI

Combine

Hilt

Coroutines

Job description

About Airwallex

Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 150,000 businesses worldwide – including Brex, Rippling, Navan, Qantas, SHEIN and many more – with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale.

Proudly founded in Melbourne, we have a team of over 1,700 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$6.2 billion and backed by world-leading investors including Visa, Airtree, Blackbird, Sequoia, DST Global, Greenoaks, Salesforce Ventures, Lone Pine, and Square Peg, Airwallex is leading the charge in building the global payments and financial platform of the future. If you’re ready to do the most ambitious work of your career, join us.

About the team

Our Mobile Team is responsible for the end-to-end development of both our iOS and Android apps, leveraging the latest technologies to build a seamless user experience. On iOS, we work with SwiftUI, Combine, and Async/Await, while on Android we use AndroidX, Coroutines, Hilt, and a suite of Jetpack libraries.

You’ll be joining Airwallex at a pivotal moment as we expand the capabilities of our modern, fully native mobile apps. These apps empower customers to manage global B2B payments, submit and approve expenses, and control both virtual and physical Airwallex cards—including seamless Apple Pay and Google Pay integration for card transactions.

What you’ll do

As a Mobile Engineer, you’ll focus on building high-quality, user-friendly native mobile applications using modern frameworks and best practices. You’ll work closely with product managers, designers, and other engineers to deliver features that are reliable, intuitive, and performant.

This role is based in Singapore.

Responsibilities

• Take ownership of the design, implementation, and delivery of key features across our iOS and Android apps, ensuring they are intuitive, performant, and reliable.

• Collaborate closely with fellow engineers to define architecture, share best practices, and drive high-quality standards across platforms.

• Influence how we scale and evolve our mobile apps—built less than three years ago—by shaping core architecture and contributing to long-term technical direction.

• Go beyond feature development: contribute to team processes, product decisions, and broader engineering strategy as we scale globally.

• Be a hands-on technical leader who takes pride in clean, testable code and actively supports continuous improvement across the mobile stack.

Who you are

We’re looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory.

Minimum Qualifications:

• 6+ years of experience developing native mobile applications on iOS or Android, using modern frameworks and development practices

• Bachelor’s degree or higher in Computer Science, Engineering, or a related field

• Proven experience shipping one or more production apps, ideally available in the App Store or Google Play

• Strong focus on code quality—writes testable code with high test coverage

• Experience maintaining CI/CD pipelines (e.g. GitHub Actions, Bitrise)

Preferred Qualifications:

• Experience with modern Android or iOS development tools and libraries, such as AndroidX, Jetpack, SwiftUI, Combine, Hilt, or Coroutines

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.

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.