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
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