Senior iOS Engineer, GTPN Platform
iOS Engineer · Senior · Full Time
Opens Airwallex's application page
Role
What you'll do.
A Senior iOS Engineer role at Airwallex focused on building mobile applications for the GTPN platform, enabling global payment solutions. The position requires 5+ years of iOS development experience with Swift and Objective-C, working on enterprise-scale financial applications with strong emphasis on security, regulatory compliance, and cross-platform understanding.
Responsibilities
- Enterprise Application Development: Design and implement enterprise-grade iOS applications and libraries for the GTPN platform
- Cross-functional Collaboration: Work with internal business teams and product management to define technical requirements and specifications
- Full-cycle Product Development: Serve as core contributor owning complete product development lifecycle from conception to deployment
- Code Architecture and Refactoring: Collaborate with architects to refactor code and design for optimal maintainability, extensibility, and reusability
- Security and Compliance Implementation: Integrate best practices for protecting sensitive customer data and ensuring global regulatory compliance
- Platform Optimization: Ensure applications are secure, reliable, sustainable, and developer-friendly across the iOS ecosystem
- Feature Development: Deliver new features and different levels of integration experiences for global payment products
Qualifications
What we look for.
Technical
iOS Development Expertise
5+ years of professional experience developing native iOS applications using Swift and Objective-C
iOS Frameworks Mastery
Expert knowledge of iOS frameworks, ecosystem, and development best practices
Mobile Design Patterns
Strong understanding of design patterns specific to mobile development and architecture
RESTful API Integration
Proven experience integrating with RESTful APIs and backend services
Code Quality and Testing
Ability to write robust, maintainable code with high test coverage and maintain CI/CD pipelines
Cross-platform Knowledge
Android development expertise is highly regarded for cross-platform understanding
Education
Computer Science Degree
BS/MS degree in Computer Science or equivalent technical major
Experience
Professional iOS Development
Minimum 5 years of professional experience in native iOS app development
Enterprise Application Development
Experience building large-scale, enterprise-grade mobile applications
Financial Technology Experience
Preferred experience in fintech, payments, or financial services applications
Team Collaboration
Proven ability to work independently and collaboratively in cross-functional teams
Skills
Required
Swift Programming
Advanced proficiency in Swift for iOS development with modern best practices
Objective-C
Strong knowledge of Objective-C for legacy code maintenance and interoperability
iOS SDK and Frameworks
Expert-level knowledge of iOS SDK, UIKit, Foundation, and core iOS frameworks
RESTful API Integration
Experience designing and implementing RESTful API integrations
Mobile Architecture Patterns
Understanding of MVVM, MVC, VIPER, and other mobile architecture patterns
CI/CD Pipeline Management
Experience with continuous integration and deployment automation
Unit and Integration Testing
Proficiency in writing comprehensive test suites for mobile applications
Security Best Practices
Knowledge of mobile security, data protection, and regulatory compliance
English Communication
Fluent English communication for global team collaboration
Preferred
Android Development
Nice to haveCross-platform mobile development experience with Android ecosystem
Financial Technology
Nice to haveBackground in fintech, payments, or banking application development
Performance Optimization
Nice to haveExperience optimizing mobile app performance and user experience
App Store Deployment
Nice to haveKnowledge of App Store submission process and guidelines
Agile Methodologies
Nice to haveExperience working in Agile/Scrum development environments
Tech stack
Languages
Frameworks
Tools
Other
Compensation
Pay and benefits.
Base·SGD 160,000 – 240,000
Benefits
Innovation Impact
Opportunity to redefine the technological landscape of the financial world with cutting-edge solutions
Diverse Workplace
Rich, inclusive workspace with strength in diversity and collaborative spirit
Cutting-edge Technology
Work with groundbreaking technologies that ensure continuous learning and engagement
Professional Growth
Vibrant community with guild meetings and shared initiatives fostering knowledge sharing
Career Empowerment
Supportive environment where contributions drive change and growth knows no bounds
Global Team
Work with over 2,000 innovative professionals across 26 offices worldwide
Process
Interview steps.
- 01
Initial Screening
Phone or video call to discuss background, experience, and interest in the role
- 02
Technical Assessment
Coding challenge or technical questions focused on iOS development, Swift, and mobile architecture
- 03
System Design Interview
Discussion of mobile app architecture, scalability, and design decisions for financial applications
- 04
Team Interview
Meeting with engineering team members and potential colleagues to assess cultural fit
- 05
Final Interview
Meeting with senior leadership to discuss career goals, company fit, and role expectations
Full posting
Original listing.
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.
Who We Are Looking For:
As an experienced Senior Mobile Engineer (iOS), you’ll be part of our GTPN team to build the Airwallex Mobile App for our customers to access our payment products across the globe on the go.
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.
Responsibilities:
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.
Qualifications:
BS / MS degree in Computer Science or equivalent majors;
5+ years of professional experience developing native apps in iOS (both Swift and Objective-C);
Expert knowledge of iOS frameworks and ecosystem;
Good understanding of design patterns for mobile development;
Experience using RESTful 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;
Fluently in English.
While this position primarily focuses on iOS development, your expertise in Android is also highly regarded.
Why Join Us
Impact and Innovation: Join a team where innovation meets impact. With us, you will redefine the technological landscape of the financial world.
Diversity and Collaboration: Our strength lies in our diversity and collaborative spirit, ensuring a rich, inclusive workspace.
Cutting-edge Technology: You will work with groundbreaking technologies that keep you engaged and continuously learning.
Community and Growth: Engage in a vibrant community with guild meetings and shared initiatives that foster knowledge sharing and professional growth.
Empowerment: Be part of a team where your contributions spearhead change and your growth knows no bounds in a supportive environment.
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.
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