Senior Mobile Engineer

Job ID: 26013505Posted: 2026-09-02Location: New York, NY, United StatesSalary: $123000 - $215250 annually + bonus + benefitsJob Function: Engineering & ArchitectureSchedule: Full timeShift: DayWorkplace: HybridCareer Area: TechnologyCompany: American ExpressDescriptionJoining Amex Tech means discovering and shaping your contribution to something big. Here, you can work alongside talented tech teams and build a unique career with the Powerful Backing of American Express. With a range of opportunities to work with the latest technologies, and a commitment to back the broader engineering community through open source, our mission is to power your success. Because Amex Tech is powered by our technology, our culture, and our colleagues.The Technology organization enables and accelerates the company’s growth strategies, delivering global capabilities and services in support of Amex’s customers and colleagues, while maintaining 24/7 servicing and availability to ensure an uninterrupted, high-quality customer experience. Technology provides the foundation for everything we do in the company while driving differentiation through building and leveraging innovative technology and data insights.The U.S. Consumer Services and Membership Digital Experiences Technology team (USCDT) brings together foundational strategic technology capabilities in digital experience engineering (Mobile and Web), marketing and advertising technology, enterprise communications, travel and lifestyle, and dining technology. It employs a ground-breaking focus with development responsibilities for customer-facing capabilities that deepen and expand digital engagement, as well as core technical capabilities that cut across business lines and customer segments. You’ll be part of the Mobile Engineering team whose mission is to be essential in our customers’ digital lives by providing value, convenience, and delight wherever they are. You will be responsible for leading a team of mobile engineers building mobile applications that will be used by tens of millions of American Express Customers around the world.We are looking for an Senior Mobile Engineer (iOS) to work on mobile applications that are used by tens of millions of American Express cardholders around the world. We want someone with strong technical skills and creativity; someone who enjoys solving tough problems and working with innovative technologies. This person should not be shy about sharing their ideas and be obsessive about user experience and beautiful code.You will be working in a fast-paced small-team environment with the stability of working as part of a Fortune 100 company. Your primary responsibility will be to work on a small team of designers, product owners, QA, and engineers developing and improving features. You should be familiar with modern software development methodologies popular in iOS and be able to dive deep and rapidly iterate on ideas with your team despite some ambiguity.We are looking for an Senior Mobile Engineer (iOS) to work on mobile applications that are used by tens of millions of American Express cardholders around the world. We want someone with strong technical skills and creativity; someone who enjoys solving tough problems and working with innovative technologies. This person should not be shy about sharing their ideas and be obsessive about user experience and beautiful code.You will be working in a fast-paced small-team environment with the stability of working as part of a Fortune 100 company. Your primary responsibility will be to work on a small team of designers, product owners, QA, and engineers developing and improving features. You should be familiar with modern software development methodologies popular in iOS and be able to dive deep and rapidly iterate on ideas with your team despite some ambiguity.ResponsibilitiesRelevant Experience & SkillsBuilding iOS ApplicationsWriting & Deleting codeBuild tools like Tuist, xcodebuild, GitHub Actions, and Circle CIContinuous Integration patternsFinding and fixing bugsFunctional coding patternsPerformance Analysis and OptimizationDealing with Objective-C legacy codeUnit & Integration TestsOpen SourceWorking in a globally distributed teamSelf-starting and good at time managementIntegrating with bespoke lovingly hand-crafted backend services from the days of yore.Designing solutions for open ended problemsQualificationsRelevant Technologies that you may encounter on our teamUIKitMVVM REST APIsRAML API DocumentationDangerμFeatures ArchitectureSwiftObjective-C (in decreasing quantities!)GitHub ActionsCircle CIXCTest/XCUITestTuistBachelor’s degree in Computer Science or related field, or equivalent experience.Employment eligibility to work with American Express in the United States is required as the company will not pursue visa sponsorship for these positions. About the TeamAt American Express, our culture is built on a 175-year history of innovation, shared values and Leadership Behaviors, and an unwavering commitment to back our customers, communities, and colleagues. From delivering differentiated products to providing world-class customer service, we operate with a strong risk mindset, ensuring we continue to uphold our brand promise of trust, security, and service.As part of Team Amex, you’ll experience our powerful backing with comprehensive support for your holistic well-being and many opportunities to learn new skills, develop as a leader, and grow your career. Here, your voice and ideas matter, your work makes an impact, and together, you will help us define the future of American Express.