iOS Developer (Radiotech)

Gismart; United States; Remote; USD 110,000 - 160,000; Full time

Job summary

Gismart is seeking an iOS-focused developer to build, maintain, and modernize iOS applications using Swift, SwiftUI, and UIKit. You will shape the architecture for scalability and maintainability and prepare apps for Kotlin Multiplatform adoption.

Collaboration with Android and other engineers will be key to delivering cross-platform solutions. The role emphasizes efficient, testable code, and ongoing modernization to support a growing portfolio of health, utilities, and music apps within the

Qualifications

• Develop, maintain, and modernize existing iOS applications using Swift, SwiftUI, and UIKit.
• Define and evolve the architecture of the iOS codebase with a focus on scalability, modularization, and maintainability.
• Design and implement efficient, testable technical solutions.
• Prepare existing applications for gradual adoption of Kotlin Multiplatform (KMP).
• Participate in the migration of selected business logic and shared components to KMP.
• Collaborate with Android and other engineers on

Responsibilities

• Develop, maintain, and modernize existing iOS applications using Swift, SwiftUI, and UIKit.
• Define and evolve the architecture of the iOS codebase with a focus on scalability, modularization, and maintainability.
• Design and implement efficient, testable technical solutions.
• Prepare existing applications for gradual adoption of Kotlin Multiplatform (KMP).
• Participate in the migration of selected business logic and shared components to KMP.
• Collaborate with Android and other engineers on

Skills

Swift

SwiftUI

UIKit

Architecture

Tools

Xcode

Git

Kotlin Multiplatform

Job description

About us Gismart is a value-driven mobile app developer with a strong presence in the Health & Wellness, Utilities, and Music app markets. We have recently reached an important milestone of 1B+ downloads worldwide , moving closer to our mission of supporting people on their self-improvement journeys. Headquartered in London, Gismart is a global company with a team of 400+ people across Europe and beyond . We bring together professionals from entertainment, music, and tech backgrounds, combining creativity, product thinking, and strong execution to build apps used by millions of people worldwide. Our mission is to become a stepping stone on our customers' journeys of self-improvement. Our values Deliver what matters Respect and support others Initiate and own Voice openly Execute with quality

About the project At Radiotech , we believe music belongs to everyone - not just those who grew up taking lessons. As a product company inside the Gismart ecosystem, we've spent years building apps that make music feel approachable, fun, and deeply human. With 23 apps across iOS and Android and over 500 million downloads worldwide, our products have found their way into the hands of musicians, beginners, and curious souls across the globe. We see music as a universal language. Our job is to make sure more people can speak it.

Responsibilities

• Develop, maintain, and modernize existing iOS applications using Swift, SwiftUI, and UIKit.
• Define and evolve the architecture of the iOS codebase with a focus on scalability, modularization, and maintainability.
• Design and implement efficient, testable technical solutions.
• Prepare existing applications for gradual adoption of Kotlin Multiplatform (KMP).
• Participate in the migration of selected business logic and shared components to KMP.
• Collaborate with Android and other engineers on