Senior iOS Engineer, GTPN Platform

Airwallex2 months ago

Location

SG - Singapore

Type

Full Time

Salary

SGD 160,000 – 240,000

Level

Senior

Role

iOS Engineer

Posted

Dec 18, 2025

Full TimeSenior

The role

Summary

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.

What you'll do

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

What we look for

Technical

iOS Development Expertise5+ years of professional experience developing native iOS applications using Swift and Objective-C

iOS Frameworks MasteryExpert knowledge of iOS frameworks, ecosystem, and development best practices

Mobile Design PatternsStrong understanding of design patterns specific to mobile development and architecture

RESTful API IntegrationProven experience integrating with RESTful APIs and backend services

Code Quality and TestingAbility to write robust, maintainable code with high test coverage and maintain CI/CD pipelines

Cross-platform KnowledgeAndroid development expertise is highly regarded for cross-platform understanding

Education

Computer Science DegreeBS/MS degree in Computer Science or equivalent technical major

Experience

Professional iOS DevelopmentMinimum 5 years of professional experience in native iOS app development

Enterprise Application DevelopmentExperience building large-scale, enterprise-grade mobile applications

Financial Technology ExperiencePreferred experience in fintech, payments, or financial services applications

Team CollaborationProven ability to work independently and collaboratively in cross-functional teams

Skills

Required skills

Swift ProgrammingAdvanced proficiency in Swift for iOS development with modern best practices

Objective-CStrong knowledge of Objective-C for legacy code maintenance and interoperability

iOS SDK and FrameworksExpert-level knowledge of iOS SDK, UIKit, Foundation, and core iOS frameworks

RESTful API IntegrationExperience designing and implementing RESTful API integrations

Mobile Architecture PatternsUnderstanding of MVVM, MVC, VIPER, and other mobile architecture patterns

CI/CD Pipeline ManagementExperience with continuous integration and deployment automation

Unit and Integration TestingProficiency in writing comprehensive test suites for mobile applications

Security Best PracticesKnowledge of mobile security, data protection, and regulatory compliance

English CommunicationFluent English communication for global team collaboration

Nice to have

Android DevelopmentCross-platform mobile development experience with Android ecosystem

Financial TechnologyBackground in fintech, payments, or banking application development

Performance OptimizationExperience optimizing mobile app performance and user experience

App Store DeploymentKnowledge of App Store submission process and guidelines

Agile MethodologiesExperience working in Agile/Scrum development environments

Compensation & benefits

Salary

SGD 160,000 – 240,000 (annual)

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

Interview process

1
Initial Screening — Phone or video call to discuss background, experience, and interest in the role
2
Technical Assessment — Coding challenge or technical questions focused on iOS development, Swift, and mobile architecture
3
System Design Interview — Discussion of mobile app architecture, scalability, and design decisions for financial applications
4
Team Interview — Meeting with engineering team members and potential colleagues to assess cultural fit
5
Final Interview — Meeting with senior leadership to discuss career goals, company fit, and role expectations