iOS Engineer (Contractor)

Mobile applications that serve tens of millions of cardholders worldwide demand a relentless focus on user experience and code quality. As an iOS Engineer, working in a hybrid mode in London, you will sit at the intersection of scale and creativity, where ambiguity is part of the challenge and rapid iteration is the norm. You will thrive if you enjoy working in a fast-paced, small-team environment while contributing to products with global impact. The team values open collaboration and the drive to solve tough problems with modern approaches. The work matters because every feature you help shape reaches users around the world.

Responsibilities

• Build and maintain iOS applications and write and delete code as needed
• Use build tools such as Tuist, xcodebuild, GitHub Actions and Circle CI and apply continuous integration patterns
• Find and fix bugs and apply functional coding patterns
• Perform performance analysis and optimization and work with Objective-C legacy code
• Create unit and integration tests and contribute to open source
• Collaborate in a globally distributed team and demonstrate self-starting and good time management
• Integrate with bespoke backend services and design solutions for open-ended problems

Requirements

• Experience building iOS applications and writing and deleting code
• Familiarity with build tools such as Tuist, xcodebuild, GitHub Actions and Circle CI and continuous integration patterns
• Ability to find and fix bugs and apply functional coding patterns
• Skills in performance analysis and optimization and dealing with Objective-C legacy code
• Experience with unit and integration tests and open source
• Ability to work in a globally distributed team and demonstrate self-starting and good time management
• Experience integrating with bespoke backend services and designing solutions for open-ended problems
• Bachelor’s degree in Computer Science or related field, or equivalent experience
• Knowledge of UIKit and MVVM
• Familiarity with REST APIs and RAML API documentation