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Senior iOS Developer

Sweden, Stockholm · Job Posted March 01, 2026
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Job Description

You will play a key role in consolidating multiple apps into a single, scalable codebase, improving code quality, and accelerating delivery. You will help shape the next generation of the Marshall app, delivering high-quality features, strengthening our mobile foundations, and raising the bar for engineering excellence across the team.

Job Responsibility

  • Deliver high-quality iOS features end-to-end using Swift and SwiftUI, with a focus on performance, reliability, and user experience
  • Contribute to the consolidation of multiple apps into a unified, scalable codebase, helping unwind legacy implementations along the way
  • Improve and maintain architectural foundations, modularisation, and shared components that support cross-platform reuse, including Kotlin Multiplatform
  • Write clean, maintainable code with strong unit and automated test coverage, and champion modern testing practices across the team
  • Collaborate closely with Product, Design, Android, Backend, Firmware, and QA to deliver cohesive, global experiences
  • Mentor and support other engineers, raising the overall technical quality and engineering culture of the team
  • Participate in design discussions, code reviews, and technical decision-making to ensure consistent, high-quality implementation

Requirements

  • Several years of professional experience developing iOS applications using Swift
  • Demonstrated success delivering complex mobile features end-to-end in cross-functional teams
  • Experience working with SwiftUI, modern concurrency (async/await), Combine, or similar paradigms
  • Experience contributing to architectural foundations, modularisation, or multi-module iOS apps
  • Experience collaborating closely with design, product, QA, hardware/firmware, and backend teams
  • Strong problem-solving and technical design skills, with high standards for maintainability and craftsmanship
  • A user-centric mindset that balances technical considerations with business and product needs

Nice to have

Experience with Bluetooth / BLE integrations or connected device ecosystems is a strong advantage

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