Senior iOS Mobile App Developer

About the role

This is an eight-month, full-time, day-shift, project-based engagement from 12 October 2026 to 30 June 2027. You must be available to start on 12 October 2026. Work is hybrid: two days per week onsite at an office in Makati City, with the remaining days remote. You will support mobile product delivery for a major Philippine bank. Depending on performance and the client's needs, strong contributors may be considered for absorption by the client organization. As a Senior iOS Mobile App Developer, you will design and build native iOS applications that improve the user experience and support the product's mobile strategy. Working with cross-functional teammates, you will create applications that are intuitive, scalable, secure, and optimized for Apple devices.

What you'll do

• Design, build, and maintain high-performance, reusable, and reliable iOS applications in Swift, using Apple's native SDKs and frameworks
• Develop and integrate features with product, UX/UI, and design teammates so applications meet usability, accessibility, and experience standards
• Keep code quality high through iOS best practices and modern architecture such as MVVM, with practical use of SwiftUI and UIKit
• Implement and support unit, UI, and integration tests, and diagnose crashes, memory issues, and performance bottlenecks
• Work with backend engineers, product managers, project managers, QA, security, and designers to deliver the product
• Integrate iOS applications with backend services through RESTful APIs, including error handling, authentication, and secure communication
• Write and maintain technical documentation, development standards, and implementation guidelines, and participate in code reviews
• Stay current with iOS frameworks, SDK releases, tools, and security practices. Training and upskilling support is part of the engagement

What you'll bring

• Availability to start full-time on 12 October 2026, work day-shift hours, and attend onsite work in Makati City two days per week through 30 June 2027
• 5 or more years of professional native iOS development, including production applications you have designed, built, deployed, and maintained
• Strong proficiency in Swift, with extensive experience in Xcode and the iOS SDK
• Strong understanding of SwiftUI, with practical UIKit experience and experience integrating SwiftUI into existing applications
• Practical experience with MVVM and other modern application architecture patterns
• Experience with dependency management, modular architecture, multi-module projects, frameworks, packages, or Swift Package Manager
• Experience integrating RESTful APIs and backend services into iOS applications
• Strong knowledge of Foundation, UIKit, SwiftUI, Combine, URLSession, Core Data, UserDefaults, Keychain, and navigation frameworks
• Understanding of local data persistence and secure storage, including Core Data, Keychain, and other appropriate iOS storage mechanisms
• Strong understanding of iOS application security, including credential storage, authentication, authorization, certificate and SSL handling, and protection of sensitive user data
• Familiarity with XCTest, XCUITest, mocking, and other unit, UI, and automated testing practices
• Experience troubleshooting crashes, memory leaks, threading and concurrency issues, network failures, and performance problems with Instruments and Xcode
• Understanding of Swift concurrency, including async/await, structured concurrency, and asynchronous operations
• Experience with Git, branching strategies, pull requests, and collaborative development workflows
• Experience with Apple App Store deployment, including certificates, provisioning profiles, code signing, TestFlight, App Store Connect, and production releases
• Strong analytical skills and the ability to explain technical concepts clearly to technical and non-technical stakeholders

Nice to have

• 10 or more years of professional native iOS development, including production applications you have designed, built, deployed, and maintained
• Experience with CI/CD pipelines and automated build, testing, and deployment for iOS applications
• Knowledge of banking, financial services, payments, or fintech
• Experience building applications that handle financial transactions, authentication, personally identifiable information, or other sensitive customer data
• Experience with Apple security frameworks, Face ID or Touch ID, secure authentication flows, and mobile application security
• Experience with Firebase, analytics, crash reporting, push notifications, deep linking, or mobile observability platforms
• Experience with Agile or Scrum delivery in large-scale enterprise product teams
• Experience with Android, Flutter, or React Native