Senior iOS Engineer

Job Title: Senior iOS Engineer

Location: Hybrid - once monthly in office in Manchester (if living within a short commute to the office, may be once per week in-office)

Employment Type: Full-time

The Role

As a Senior iOS Engineer, you’ll play a key role in the design, development, and delivery of our iOS applications. You’ll work closely with product managers, designers, and backend engineers to build polished, high-performance, and scalable mobile experiences.

What You’ll Do

  • Lead the development of new features and improvements for our iOS app using Swift, SwiftUI, and UI Kit
  • Collaborate with cross-functional teams to define, design, and ship new capabilities
  • Review code, mentor junior engineers, and help uphold high engineering standards
  • Ensure performance, quality, and responsiveness of the application
  • Identify and fix bugs and performance bottlenecks
  • Stay up to date with the latest iOS trends, tools, and best practices
  • Contribute to architectural discussions and technical decision-making

What We’re Looking For

  • 5+ years of professional experience building iOS apps in Swift
  • UIKit experience is crucial
  • Deep understanding of iOS frameworks, UIKit, SwiftUI, Combine, and Apple Human Interface Guidelines
  • Strong experience with mobile app architecture (MVVM, VIPER, etc.)
  • Proven track record of delivering apps to the App Store
  • Familiarity with RESTful APIs, GraphQL, and integrating backend services
  • Experience with tools like Xcode, Fastlane, and CI/CD pipelines
  • Excellent debugging and performance tuning skills
  • Strong communication and collaboration abilities

Nice to Have

  • Experience with CoreData, Bluetooth, or offline-first architecture
  • Familiarity with functional reactive programming (e.g., RxSwift, Combine)
  • Contributions to open-source or personal iOS projects

Job Details

Company
Haystack
Location
Manchester Area, United Kingdom
Hybrid / Remote Options
Posted