Senior iOS Developer

Amex GBT is a place where colleagues find inspiration in travel as a force for good and – through their work – can make an impact on our industry. We’re here to help our colleagues achieve success and offer an inclusive and collaborative culture where your voice is valued.

Ready to explore a career path? Start your journey.

What You’ll Do on a typical day

• Lead iOS application architecture and design
• Mentor junior iOS developers
• Define coding standards and best practices
• Make critical technical design decisions
• Conduct advanced code reviews
• Drive technical innovation
• Design complex, scalable iOS applications
• Implement advanced architectural patterns (MVVM, Clean Architecture)
• Develop custom frameworks and libraries
• Performance optimization and profiling
• Advanced debugging and troubleshooting
• Implement complex UI/UX interactions

What We’re Looking For

• Experience: 5+ years of experience in iOS app development.
• Languages: Expert-level proficiency in Swift.
• Frameworks & Tools: Deep understanding of iOS SDK, UIKit, SwiftUI, Combine, Core Data, and Core Animation.
• Architectural Patterns: Strong experience with MVVM, VIPER, or Clean Architecture.

• Performance Optimization: Proven ability to analyze app performance, memory management, and debugging.
• APIs & Networking: Experience with RESTful APIs, WebSockets, and third-party SDK integrations.
• Version Control & CI/CD: Expertise in Git, GitFlow, and CI/CD tools like Jenkins, and Fastlane.
• Testing: Proficiency in unit and UI testing (XCTest, XCUITest, Snapshot Testing).
• Deployment: Strong understanding of App Store submission processes, TestFlight, and enterprise app distribution.

• Security: Knowledge of iOS security best practices, encryption, and data protection techniques.
• Experience leading mobile teams or mentoring junior developers.
• Proficiency in SwiftUI and reactive programming with Combine.
• Familiarity with cloud services (Firebase, AWS).
• Experience with Agile/Scrum methodologies.
• Knowledge of machine learning frameworks like Core ML is a plus.

Location

The #TeamGBT Experience

Work and life: Find your happy medium at Amex GBT.

• Flexible benefits are tailored to each country and start the day you do. These include health and welfare insurance plans, retirement programs, parental leave, adoption assistance, and more.

• Travel perks: get a choice of deals each week from major travel providers on everything from flights to hotels to cruises and car rentals.

• Develop the skills you want when the time is right for you, with global tuition assistance, access to over 20,000 courses on our learning platform, leadership courses, and new job openings available to internal candidates first.

• We strive to champion Diversity, Equity, and Inclusion in every aspect of our business at GBT. You can connect with colleagues through our global Inclusion Groups, centered around common identities or initiatives, to discuss challenges, obstacles, achievements, and drive company awareness and action.

• Wellbeing resources to support mental and emotional health for you and your immediate family.

• And much more!

All applicants will receive equal consideration for employment without regard to age, sex, gender (and characteristics related to sex and gender), pregnancy (and related medical conditions), race, color, citizenship, religion, disability, or any other class or characteristic protected by law.

Furthermore, we are committed to providing reasonable accommodation to qualified individuals with disabilities. Please let your recruiter know if you need an accommodation at any point during the hiring process. For details regarding how we protect your data, please consult GBT Recruitment Privacy Statement.

What if I don’t meet every requirement? If you’re passionate about our mission and believe you’d be a phenomenal addition to our team, don’t worry about “checking every box;" please apply anyway. You may be exactly the person we’re looking for!