Intermediate Mobile Developer

Core Group is looking for an Intermediate Mobile Developer to independently deliver mobile features of moderate complexity across our native iOS and Android applications. You’ll work in Swift and Kotlin, share logic through Kotlin Multiplatform, integrate with back-end APIs and play an active role in code reviews and App Store / Google Play releases.

• Independently deliver mobile features across native iOS (Swift) and Android (Kotlin), using Kotlin Multiplatform for shared logic.
• Design solutions for features of moderate complexity within established mobile architecture and patterns.
• Write clean, testable code and participate actively in peer and code reviews.
• Ensure features meet mobile performance, security and quality requirements.
• Integrate reliably with back-end APIs provided by the Full Stack team.
• Support release preparation and delivery through the Apple App Store and Google Play.
• Continue deepening iOS, Android and KMP expertise while sharing knowledge with junior developers.

• iOS:
  Swift
• Android:
  Kotlin
• Shared logic:
  Kotlin Multiplatform (KMP)
• Distribution:
  Apple App Store and Google Play

Degree in Computer Science or a closely related field, or equivalent practical experience.

• 3–5 years building and shipping mobile software in a team environment.
• Solid hands-on experience in native iOS (Swift) and Android (Kotlin).
• Working knowledge of Kotlin Multiplatform.
• Good testing discipline and understanding of mobile performance and secure-storage basics.
• Comfort with code reviews, Agile delivery and collaboration with API/back-end teams.

• Retail, e-commerce or consumer mobile app experience.
• Kotlin Multiplatform experience in production.
• Experience delivering App Store / Google Play releases and phased rollouts.

You can work independently within an established architecture, care deeply about mobile quality and enjoy contributing across both iOS and Android.

We value customer focus, getting things done, teamwork, innovation, integrity, passion and embracing differences. We’re looking for people who bring those values into the way they solve problems, collaborate and deliver.

Please note: These roles may require occasional out-of-hours support during peak-trading and major product-launch windows, as well as occasional travel between offices or supported markets.