Intermediate Mobile Developer

About the opportunity

• 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.

What you’ll be doing

• 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.

Mobile stack

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

What we’re looking for

• 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.

Advantageous

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

What will make you successful

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

How we work

• 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.