ios developer for music apps

Gismart develops mobile apps in the Health & Wellness, Utilities, and Music markets, with over 1 billion downloads worldwide. Its Radiotech product builds music apps that make learning and playing music approachable, with 23 apps across iOS and Android and over 500 million downloads.

• Develop, maintain, and modernize existing iOS applications using Swift, SwiftUI, and UIKit
• Define and evolve the iOS codebase architecture, focusing on scalability, modularization, and maintainability
• Design and implement efficient, testable technical solutions
• Prepare existing applications for gradual adoption of Kotlin Multiplatform (KMP)
• Migrate selected business logic and shared components to KMP
• Collaborate with Android and other engineers on shared mobile architecture and APIs
• Research technical challenges and propose architectural solutions
• Troubleshoot complex issues and optimize application performance and memory usage
• Conduct code reviews and contribute to technical documentation
• Maintain and improve CI/CD and release workflows
• Collaborate with Product Managers on technical solutions, planning, and estimation
• Proactively suggest technical and product improvements
• Use AI coding tools and engineering agents such as Cursor, Claude Code, Codex, or similar in the regular development workflow

• 4+ Years of professional iOS development experience
• Strong proficiency in Swift and modern language features
• Strong experience with Swift Concurrency (async/await) and reactive programming such as Combine
• Production experience with SwiftUI and UIKit
• Strong understanding of iOS architecture, application lifecycle, and platform frameworks
• Experience with MVVM, Clean Architecture, modular architecture, and reusable components
• Ability to independently design and implement complex technical solutions
• Experience with REST APIs, GraphQL, asynchronous networking, and multithreading
• Familiarity with Xcode, Instruments, SPM, CocoaPods, and Fastlane
• Understanding of App Store submission, signing, provisioning, TestFlight, and release management
• Experience with feature flags, remote configuration, and A/B testing
• Experience with CI/CD and automated testing
• Practical experience using AI coding assistants and engineering agents in daily development

• 100% Compensation for coworking spaces in Ukraine, except Kyiv; 50% compensation for coworking spaces worldwide
• Free lunches for employees working from company hubs
• Public holidays follow the Ukrainian or Polish holiday calendar; employees in other locations receive 12 public holidays per year
• 100% Sick leave compensation
• Partial coverage of medical insurance, sports activities, and therapy costs
• Equipment is provided, or maintenance costs for personal equipment are covered
• 70% Of professional development courses and 100% of corporate English courses are covered
• 18 Working days of paid vacation and 3 personal days per year, with one additional vacation day for each year at Gismart
• Corporate events and team-building activities are organized across Gismart hubs whenever possible