Senior iOS Engineer

Haystack is looking for a Senior iOS Engineer

Job description

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

Extra information

Status
Open
Education Level
Secondary School
Location
Manchester Area
Type of Contract
Full-time jobs
Published at
14-01-2026
Profession type
ICT
Full UK/EU driving license preferred
No
Car Preferred
No
Must be eligible to work in the EU
No
Cover Letter Required
No
Languages
English

ICT Jobs | Full-time jobs | Secondary School

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