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Senior iOS Engineer job description

A Senior iOS Engineer is a skilled developer specializing in creating and maintaining iOS applications. They leverage the latest Swift features and iOS SDKs to build intuitive, efficient, and visually appealing mobile applications.

Alexandros Pantelakis
Alexandros Pantelakis

HR content specialist at Workable, delivering in-depth, data-driven articles to offer insights into industry and tech trends.

Refreshed on

February 29, 2024

Reviewed by

Eftychia Karavelaki

Senior Recruitment Manager

What is a Senior iOS Engineer?

A Senior iOS Engineer is an experienced developer focused on designing, implementing, and maintaining applications for Apple’s iOS operating system. They possess a deep understanding of the iOS ecosystem, including frameworks like UIKit and SwiftUI, and the Swift programming language.

These engineers are adept at solving complex problems, optimizing app performance, and ensuring a seamless user experience. Their role is crucial in the mobile app development lifecycle, from conceptualization and design to deployment and updates.

What does a Senior iOS Engineer do?

A Senior iOS Engineer takes charge of developing high-quality iOS applications that meet the needs of users and the objectives of the business. They work with the latest technologies and tools provided by Apple, including the most recent Swift versions and development environments like Xcode on state-of-the-art hardware.

These engineers are involved in every stage of the app development process, including planning, coding, testing, and deployment.

They ensure that the applications are reliable, fast, and provide a great user experience. Beyond technical skills, they participate in agile development practices, collaborate with team members from different disciplines, and contribute to the continuous improvement of the development process.

They also mentor junior developers, lead development projects, and stay updated with the latest trends and technologies in iOS development.

Senior iOS Engineer responsibilities include:

  • Developing and enhancing iOS applications using the latest Swift version and iOS SDKs
  • Participating in code reviews, pair programming, and design meetings
  • Ensuring smooth UX, low memory footprint, and battery efficiency
  • Collaborating in a cross-functional agile team environment

Job brief

We’re seeking a talented Senior iOS Engineer to join our mobile team and elevate our iOS app to new heights.

In this role, you’ll harness the latest Swift features and iOS SDKs to develop engaging and performant applications on cutting-edge Apple hardware.

You’ll be an integral part of a cross-functional agile team, contributing to code reviews, design discussions, and the continuous enhancement of our app’s user experience.

With a robust CI pipeline at your disposal, you’ll ensure our app delights thousands of daily users with its smooth UX, minimal memory footprint, and battery efficiency. If you’re passionate about crafting user-centric apps and eager to push the boundaries of mobile technology, we’d love to meet you.


  • Develop and enhance iOS applications using the latest Swift and iOS SDKs
  • Engage in code reviews, pair programming, design meetings, and brainstorming sessions
  • Optimize app performance for smooth UX, low memory usage, and battery efficiency
  • Work within a cross-functional agile team to meet project goals
  • Utilize unit testing to ensure code reliability and functionality
  • Collaborate on the continuous improvement of the development process and CI pipeline
  • Mentor junior developers and contribute to the team’s knowledge sharing

Requirements and skills

  • Solid understanding of the iOS SDK, UIKit, GCD, and Auto Layout
  • Proficiency in Swift and experience with SwiftUI
  • Strong background in unit testing and memory management
  • Comfortable with Git and version control best practices
  • Deep understanding of the native mobile app ecosystem
  • Passion for creating user-centric applications with elegant and intuitive interfaces
  • Familiarity with functional or reactive programming frameworks like RxSwift or Combine is a plus

Frequently asked questions

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