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. Senior Android Engineer - Payments Team (Card & POS) Hiring Location: Singapore Airwallex is a rapidly growing fintech unicorn, founded in 2015 and now flourishing at the Series E financing stage. With a global footprint across Asia-Pacific, Europe, North America, and APAC, we specialize in providing diverse financial payment solutions for B2B merchants, empowering businesses to operate seamlessly anywhere, anytime. 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. Joining us means becoming part of a global community of engineers leading the charge in reshaping the payments landscape while actively contributing to the operational success of businesses worldwide. Together, we're dedicated to revolutionizing financial operations for businesses, positioning our solutions as the cornerstone of their success. 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 Payment 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.

Role Description We're looking for a Staff Android Engineer to help shape the future of productivity on mobile. As a Staff Engineer, you'll serve as a technical leader across multiple teams and initiatives. You'll drive architecture and engineering strategy, influence product direction, and help solve some of the most challenging technical problems in Slack's Android application. You'll work closely with Product, Design, Backend, Infrastructure, iOS, and fellow mobile engineers to deliver experiences that are intuitive, performant, and reliable for millions of users worldwide. This role combines hands-on technical leadership with broad organizational influence. What You'll Do - Shape the future of productivity on mobile by leading the architecture and technical strategy behind experiences used by millions of Slack users every day. - Lead complex, cross-functional initiatives from early technical exploration through production rollout and long-term evolution. - Partner closely with Product and Design to shape experiences that balance user needs, technical constraints, and long-term maintainability. - Identify platform-wide opportunities to improve performance, reliability, accessibility, and developer productivity. - Influence engineering decisions beyond your immediate team through technical leadership, design reviews, and mentorship. - Establish best practices for Android development, testing, observability, and operational excellence. - Help evolve Slack's mobile architecture and infrastructure to support future product investments, including AI-powered experiences. - Mentor senior engineers and contribute to the growth of the broader Android engineering community within Slack. Qualifications - Proven track record of leading large, ambiguous technical initiatives with measurable business impact. - Experience designing systems and architectures that scale across multiple teams and long-lived codebases. - Ability to influence technical direction through collaboration rather than authority and drive alignment across diverse stakeholders. - 6+ years of professional software engineering experience, including significant experience building Android applications at scale. - Deep expertise in Kotlin and modern Android development. - Strong understanding of Android architecture, application lifecycle, concurrency, networking, and performance optimization. - Strong product intuition and a passion for creating exceptional user experiences. - Excellent communication skills and experience working across Engineering, Product, and Design organizations. - A bias toward ownership, execution, and continuous improvement. Preferred Qualifications - Experience with Jetpack Compose and modern Android architecture patterns. - Experience building shared platforms, design systems, or developer infrastructure. - Expertise in application performance, startup optimization, reliability, and observability. - Experience leading technical migrations or large-scale architectural transformations. - Contributions to open source projects or the Android community. - Experience building collaboration, productivity, messaging, AI, or enterprise software products. Benefits - Time off programs - Medical, dental, and vision insurance - Mental health support - Paid parental leave - Life and disability insurance - 401(k) - Employee stock purchasing program

Role Description We're looking for a Staff Android Engineer to help shape the future of productivity on mobile. As a Staff Engineer, you'll serve as a technical leader across multiple teams and initiatives. You'll drive architecture and engineering strategy, influence product direction, and help solve some of the most challenging technical problems in Slack's Android application. You'll work closely with Product, Design, Backend, Infrastructure, iOS, and fellow mobile engineers to deliver experiences that are intuitive, performant, and reliable for millions of users worldwide. This role combines hands-on technical leadership with broad organizational influence. What You'll Do - Shape the future of productivity on mobile by leading the architecture and technical strategy behind experiences used by millions of Slack users every day. - Lead complex, cross-functional initiatives from early technical exploration through production rollout and long-term evolution. - Partner closely with Product and Design to shape experiences that balance user needs, technical constraints, and long-term maintainability. - Identify platform-wide opportunities to improve performance, reliability, accessibility, and developer productivity. - Influence engineering decisions beyond your immediate team through technical leadership, design reviews, and mentorship. - Establish best practices for Android development, testing, observability, and operational excellence. - Help evolve Slack's mobile architecture and infrastructure to support future product investments, including AI-powered experiences. - Mentor senior engineers and contribute to the growth of the broader Android engineering community within Slack. Qualifications - Proven track record of leading large, ambiguous technical initiatives with measurable business impact. - Experience designing systems and architectures that scale across multiple teams and long-lived codebases. - Ability to influence technical direction through collaboration rather than authority and drive alignment across diverse stakeholders. - 6+ years of professional software engineering experience, including significant experience building Android applications at scale. - Deep expertise in Kotlin and modern Android development. - Strong understanding of Android architecture, application lifecycle, concurrency, networking, and performance optimization. - Strong product intuition and a passion for creating exceptional user experiences. - Excellent communication skills and experience working across Engineering, Product, and Design organizations. - A bias toward ownership, execution, and continuous improvement. Preferred Qualifications - Experience with Jetpack Compose and modern Android architecture patterns. - Experience building shared platforms, design systems, or developer infrastructure. - Expertise in application performance, startup optimization, reliability, and observability. - Experience leading technical migrations or large-scale architectural transformations. - Contributions to open source projects or the Android community. - Experience building collaboration, productivity, messaging, AI, or enterprise software products. Benefits - Time off programs - Medical, dental, and vision coverage - Mental health support - Paid parental leave - Life and disability insurance - 401(k) plan - Employee stock purchasing program

Role Description In support of our global Android Reverse Engineering program, we seek highly skilled Android App and SDK Reverse Engineers to join our team. This role will involve analyzing and deconstructing Android applications and SDKs to identify potential security risks and gain insights into their underlying functionality. - Deep Dive Analysis: Conduct in-depth analysis of Android applications and SDKs to understand their codebase, architecture, functionality and to identify potential risks. - Reverse Engineering Techniques: Employ advanced reverse engineering techniques to extract information from various codebases, including decompilation, disassembly, and debugging. - Risk Identification: Identify user and device risk, data leakage, and malicious code execution within Android apps and SDKs. - Threat Intelligence: Gather, analyze and report threat intelligence related to Android malware, exploits, and emerging security trends. - Collaboration: Collaborate with security researchers, developers, and other stakeholders to share findings, provide recommendations, and contribute to the development of secure applications and ecosystem. Qualifications - Minimum of 3 - 5+ years of expertise in one or more of the following: Android Development, Reverse Engineering, Pentesting, Application Security Assessments, Capture the Flag (CTF). - Hands-on experience with analyzing, unpacking, and reverse engineering code of malicious applications or SDKs. - Static and Dynamic Analysis Techniques. - Reverse Engineering tools such as Jadx, Ghidra, Frida, IDA Pro, Burp, to perform binary and APK analysis. - Proficiency in Java, Kotlin, JavaScript, Flutter, and other mobile software languages. - Experience with ELF (Native Binaries) reverse engineering. - Development of signatures (SQL, Yara, etc.). Requirements - An understanding of Android Fundamentals such as Android activity lifecycles, common Android API usage, AOSP, and how an Android application is created. - Knowledge of techniques utilized by malicious applications to harm the user’s device or their data. - Familiarity with Mobile App store policies (Ads, PHAs, Developer, etc.). - Experience with network traffic analysis; security fundamentals. - Research on threats such as APT using Open-Source Intelligence (Virus Total, Web, ExploitDB, MITRE, etc.). - Understanding of encoding and cryptography. - Knowledge of authentication mechanisms and security. - Experience with device rooting. - Familiarity with complex frameworks and application packers. Benefits - Retirement Plans. - Medical, Dental and Vision Coverage. - Paid Time Off. - Paid Parental Leave. - Support for Community Involvement.