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 200,000 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 2,200 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$8 billion and backed by world-leading investors including T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, 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.

Attributes We Value

We hire successful builders with founder-like energy who want real impact, accelerated learning, and true ownership. You bring strong role-related expertise and sharp thinking, and you’re motivated by our mission and operating principles. You move fast with good judgment, dig deep with curiosity, and make decisions from first principles, balancing speed and rigor.

You're humble and collaborative; turn zero‑to‑one ideas into real products, and you “get stuff done” end-to-end. You use AI to work smarter and solve problems faster. Here, you’ll tackle complex, high‑visibility problems with exceptional teammates and grow your career as we build the future of global banking. If that sounds like you, let’s build what’s next.

About the team

As a global engineering powerhouse, our team spans China, the Netherlands, and Singapore, embracing a rich tapestry of cultures and perspectives. Guided by our True North Vision, we’re passionately striving to become the preferred payment partner for businesses seeking to boost revenue and streamline expenses.

Our mission is to simplify the complexities of payments for businesses by designing solutions that seamlessly integrate into their workflows, enhancing efficiency and driving customer conversion rates. Within our diverse and dynamic team, you’ll find yourself at the intersection of innovation and practicality, where every contribution is essential in making payment processes effortless.

What you’ll do

Join our dynamic team as an engineer and play a pivotal role in revolutionizing the security landscape of online transactions! As an experienced Mobile Engineer (iOS), you’ll be part of our Payments team to build the Airwallex Mobile App for our customers to access our payment products across the globe on the go. You will spearhead the integration of 3D Secure (3DS), a cutting-edge standard developed by Visa and MasterCard, into our core card authentication processes.

You will work with your engineering colleagues as well as product stakeholders to not only make sure it’s secure, reliable, sustainable and developer-friendly but also bring new features and different levels of integration experience. We build our solutions in native technologies across iOS and Android, so we admire that you have a grasp of both platforms.

Dive deep into diverse real-time transaction scenarios, and help us deliver unparalleled security assurance for our users. Be at the forefront of innovation, where your expertise will enhance the online shopping experience and safeguard the future of digital payments.

In addition to core engineering duties, we actively encourage our engineering community to contribute to the growth of Airwallex generally. Our business is achieving rapid growth with an evolving roadmap, and we want our engineers to play a part in how that happens.

This role is based in Singapore.

Responsibilities:

Build our own 3DS infrastructure service, which will significantly enhance a business’s payment processing capabilities, strengthen security measures, and boost customer trust.
Responsible for the design & implementation of enterprise applications and libraries for iOS;
Work with internal business teams and product management to define requirements and develop technical specifications;
Serve as core contributor owning full-cycle product development;
Work with Architect and re-factor code and design for optimal maintainability, extensibility and reusability.
Integrate best practices for protecting sensitive customer data and ensuring global regulatory compliance.

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:

BS / MS degree in Computer Science or equivalent majors;
5+ years of professional experience developing native apps in iOS (SwiftUI);
Expert knowledge of iOS frameworks and ecosystem;
Good understanding of design patterns for mobile development;
Experience using RESTful and GraphQL APIs;
Promote robust and maintainable code with high test coverage, and can maintain automation pipelines for CI/CD;
Ability to work independently as well as with a team;
Able to communicate fluently in English.
While this position primarily focuses on iOS development, your expertise in Android is also highly regarded.

Preferred qualifications:

Exposure to cross-platform frameworks such as React Native

#Singapore

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.

Senior Mobile Engineer (iOS), Global Payments