Senior Android Engineer

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 2,000 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.
The Opportunity: Be Part of Our Identity & Org Team
Become an integral part of our Identity and Access Management (IAM) and Account team, where you will play a critical role in advancing our identity solutions and fortifying our account infrastructure. We are on the lookout for passionate engineers driven to work on cutting-edge projects that enhance the availability, scalability, and security of our platform. Engage in global collaboration with product managers, designers, and fellow engineers to deliver exceptional IAM solutions that safeguard businesses and optimize our account infrastructure for Airwallex's exponential growth.
Who we are looking for:
We are looking for those who take pride in crafting high-quality code, have an insatiable appetite for learning and find joy and fulfillment in developing tools that empower others.
As a Senior Mobile Engineer, you'll play a pivotal role in our team, developing cutting-edge mobile solutions that power seamless payment experiences. You'll help architect and build our POS applications and SDKs that enable merchants worldwide to accept payments through a diverse range of international and local payment methods.
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.
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.
In this role, you will:

• Responsible for the design & implementation of enterprise applications and libraries for Android;
• 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;

You might be a great fit if you:

• BS / MS degree in Computer Science or equivalent majors;
• Strong proficiency with Kotlin, with ability to read and understand Java codebases, including 5+ years of Android development experience building production applications;
• Strong foundation in software design principles and design patterns for mobile development;
• Deep knowledge of Android architecture components, Jetpack libraries, and modern development approaches (Compose, MVVM, Coroutines, Flow, etc.);
• 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;
• Fluently in English.

Bonus if you have:

• Experience developing and maintaining Android SDK libraries or frameworks;
• Familiarity with cross-platform technologies such as React Native or Flutter;
• Working experience in the payment industry.

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.