Principal iOS Engineer – Testing Specialist

Description

Hybrid Every other week onsite/5 days in Merrimack, NH

The organization seeks a Principal iOS Engineer focused on testing to build high-quality mobile experiences across iPhone, iPad, and wearables. The role will design, develop, and test native iOS features using Swift, Swift

UI, and modern architectures while partnering across cross-functional teams. The position emphasizes automated testing, CI/CD integration, and performance, with opportunities to influence mobile architecture and collaborate on broader platform capabilities. Your work will strengthen customer financial well-being through reliable, accessible, and secure mobile solutions.

Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $70.00 to $75.00/hr. w2

• Design and develop native iOS features and maintain high-quality application code.
• Apply testing and testability principles to influence software design, reliability, and security.
• Author and maintain automated tests including unit, component, integration, functional, performance, scenario, and interoperability tests.
• Integrate automated tests into CI/CD pipelines and improve release velocity and production health.
• Enable and develop mobile UI automation using XCTest and XCUITest, and support Android test automation where applicable.
• Collaborate within cross-functional teams to deliver end-to-end customer experiences and reusable components.

• 6+ years building native iOS apps using Swift, Swift
  
  UI, UIKit, Objective-C, and Xcode in an agile environment.
• Expertise with testing frameworks and concepts using XCTest and XCUITest.
• Experience with Swift concurrency, Combine, and asynchronous programming.
• Knowledge of iOS architectures such as MVVM and Clean Architecture.
• Proficiency with Apple Human Interface Guidelines and accessible iOS development.
• Advanced Git, branching strategies, and CI/CD practices.
• Knowledge of HTTP APIs, networking, and internet fundamentals.
• Experience with OAuth and OpenID Connect security patterns.
• Strong working knowledge of AWS services including EC2, Lambda, serverless computing, and Dynamo
  
  DB.
• Experience or willingness to learn Android, web, and cloud technologies.
• Understanding of containerization, Docker, and orchestration (preferred).
• End-to-end architecture experience with focus on reusable components, accessibility, security, A/B testing, personalization, analytics, and measurement.

• AWS‑related certification (preferred).